2 random shutdowns in one session

here is the report. I'm not expert enough to translate. any help appreciated. thnx.
Interval Since Last Panic Report: 8334337 sec
Panics Since Last Report:          2
Anonymous UUID:                    FAA4A424-F9C9-45EB-63EB-C5B36D5A654C
Tue Mar 4 18:43:34 2014
panic(cpu 5 caller 0xffffff801be9e54b): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts, unresponsive CPU bitmap: 0x42, NMIPI acks: orig: 0x0, now: 0x0"@/SourceCache/xnu/xnu-2050.48.12/osfmk/x86_64/pmap.c:2343
Backtrace (CPU 5), Frame : Return Address
0xffffff825eabaf50 : 0xffffff801be1d636
0xffffff825eabafc0 : 0xffffff801be9e54b
0xffffff825eabb040 : 0xffffff801bea2d60
0xffffff825eabb100 : 0xffffff801bea3595
0xffffff825eabb150 : 0xffffff801be6722c
0xffffff825eabb240 : 0xffffff801be6b100
0xffffff825eabb270 : 0xffffff801c25e369
0xffffff825eabb290 : 0xffffff801c25e465
0xffffff825eabb2b0 : 0xffffff801c25e43e
0xffffff825eabb2d0 : 0xffffff7f9d4f839d
0xffffff825eabb700 : 0xffffff7f9d4a8c80
0xffffff825eabb730 : 0xffffff7f9d4fc1dd
0xffffff825eabb7b0 : 0xffffff7f9d4e3460
0xffffff825eabb810 : 0xffffff7f9d4e3d41
0xffffff825eabb860 : 0xffffff7f9d4e4294
0xffffff825eabb8d0 : 0xffffff7f9d4e4a53
0xffffff825eabb910 : 0xffffff7f9d4afedf
0xffffff825eabba90 : 0xffffff7f9d4e0f8f
0xffffff825eabbb50 : 0xffffff7f9d4ae978
0xffffff825eabbba0 : 0xffffff801c26f789
0xffffff825eabbbc0 : 0xffffff801c270d30
0xffffff825eabbc20 : 0xffffff801c26e74f
0xffffff825eabbd70 : 0xffffff801be98c21
0xffffff825eabbe80 : 0xffffff801be20b4d
0xffffff825eabbeb0 : 0xffffff801be10448
0xffffff825eabbf00 : 0xffffff801be1961b
0xffffff825eabbf70 : 0xffffff801bea6546
0xffffff825eabbfb0 : 0xffffff801becf473
      Kernel Extensions in backtrace:
         com.apple.GeForce(8.1.6)[7C67749B-3B6B-38A9-8203-01A139C21895]@0xffffff7f9d49c0 00->0xffffff7f9d569fff
            dependency: com.apple.NVDAResman(8.1.6)[EA4F9902-5AAE-3F1D-A846-3796221C8C91]@0xffffff7f9c5 94000
            dependency: com.apple.iokit.IONDRVSupport(2.3.7)[F16E015E-1ABE-3C40-AC71-BC54F4BE442E]@0xff ffff7f9c580000
            dependency: com.apple.iokit.IOPCIFamily(2.8)[6C1D646D-7E5E-3D7F-A557-2CBA398FF878]@0xffffff 7f9c435000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.7)[9928306E-3508-3DBC-80A4-D8F1D87650D7]@0 xffffff7f9c53d000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
12F45
Kernel version:
Darwin Kernel Version 12.5.0: Sun Sep 29 13:33:47 PDT 2013; root:xnu-2050.48.12~1/RELEASE_X86_64
Kernel UUID: EA38B02E-2B88-309F-BA68-1DE29F605DD8
Kernel slide:     0x000000001bc00000
Kernel text base: 0xffffff801be00000
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 4861677893873
last loaded kext at 52911113880: com.apple.driver.AppleHWSensor     1.9.5d0 (addr 0xffffff7f9df47000, size 36864)
last unloaded kext at 130607870760: com.apple.driver.AppleFileSystemDriver     3.0.1 (addr 0xffffff7f9e169000, size 8192)
loaded kexts:
com.AmbrosiaSW.AudioSupport     4.1.2
com.Logitech.Control Center.HID Driver     3.7.0
com.apple.driver.AppleHWSensor     1.9.5d0
com.apple.iokit.IOBluetoothSerialManager     4.1.7f4
com.apple.driver.AudioAUUC     1.60
com.apple.driver.AppleUpstreamUserClient     3.5.12
com.apple.driver.AppleMCCSControl     1.1.11
com.apple.kext.AMDFramebuffer     8.1.6
com.apple.iokit.IOUserEthernet     1.0.0d1
com.apple.GeForce     8.1.6
com.apple.filesystems.autofs     3.0
com.apple.AMDRadeonAccelerator     1.0.8
com.apple.driver.AppleUSBDisplays     357
com.apple.driver.AppleHDA     2.4.7fc4
com.apple.Dont_Steal_Mac_OS_X     7.0.0
com.apple.driver.AppleMCEDriver     1.1.9
com.apple.driver.ACPI_SMC_PlatformPlugin     1.0.0
com.apple.iokit.CSRBluetoothHostControllerUSBTransport     4.1.7f4
com.apple.driver.ApplePolicyControl     3.4.5
com.apple.driver.AppleLPC     1.6.3
com.apple.driver.AppleRAID     4.0.6
com.apple.driver.Oxford_Semi     3.3.1
com.apple.iokit.SCSITaskUserClient     3.5.6
com.apple.driver.XsanFilter     404
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless     1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib     1.0.0d1
com.apple.BootCache     34
com.apple.iokit.IOAHCIBlockStorage     2.3.5
com.apple.driver.AppleUSBHub     635.4.0
com.apple.driver.AppleIntel8254XEthernet     3.1.1b1
com.apple.driver.AppleFWOHCI     4.9.9
com.apple.driver.AirPortBrcm43224     600.36.17
com.apple.driver.AppleAHCIPort     2.6.6
com.apple.driver.AppleIntelPIIXATA     2.5.1
com.apple.driver.AppleUSBEHCI     621.4.6
com.apple.driver.AppleUSBUHCI     621.4.0
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 20 GB, SMC 1.25f4
Graphics: ATI Radeon HD 5770, ATI Radeon HD 5770, PCIe, 1024 MB
Graphics: NVIDIA GeForce GT 120, NVIDIA GeForce GT 120, PCIe, 512 MB
Memory Module: DIMM Riser B/DIMM 1, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser B/DIMM 2, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser A/DIMM 1, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser A/DIMM 2, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser B/DIMM 3, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
Memory Module: DIMM Riser B/DIMM 4, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
Memory Module: DIMM Riser A/DIMM 3, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
Memory Module: DIMM Riser A/DIMM 4, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x87), Broadcom BCM43xx 1.0 (5.10.131.36.16)
Bluetooth: Version 4.1.7f4 12974, 3 service, 20 devices, 3 incoming serial ports
Network Service: Ethernet 2, Ethernet, en1
Network Service: Wi-Fi, AirPort, en2
PCI Card: ATI Radeon HD 5770, sppci_displaycontroller, Slot-1
PCI Card: ATI Radeon HD 5770, ATY,HoolockParent, Slot-1
PCI Card: NVIDIA GeForce GT 120, sppci_displaycontroller, Slot-2
PCI Card: pci1b21,612, sppci_ahci, Slot-3
PCI Card: pci104c,823f, sppci_ieee1394openhci, Slot-4@6,0,0
Serial ATA Device: WDC WD1002FAEX-00Z3A0, 1 TB
Serial ATA Device: ST31500541AS, 1.5 TB
Serial ATA Device: ST31500541AS, 1.5 TB
Serial ATA Device: PIONEER BD-RW   BDR-209D
Parallel ATA Device: PIONEER DVD-RW DVR-112D
USB Device: hub_device, 0x2001 (D-Link Corporation), 0xf103, 0xfd500000 / 4
USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc521, 0xfd540000 / 13
USB Device: EPSON Scanner, 0x04b8 (Seiko Epson Corp.), 0x012c, 0xfd520000 / 12
USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc529, 0xfd570000 / 11
USB Device: Mass Storage Device, 0x058f (Alcor Micro, Corp.), 0x6361, 0xfd560000 / 10
USB Device: Back-UPS RS 1500G FW:865.L5 .D USB FW:L5, 0x051d (American Power Conversion), 0x0002, 0xfd530000 / 9
USB Device: hub_device, apple_vendor_id, 0x911f, 0xfd400000 / 3
USB Device: MTE-450, 0x056a (WACOM Co., Ltd.), 0x0065, 0xfd410000 / 8
USB Device: Logitech Camera, 0x046d (Logitech Inc.), 0x0991, 0xfd420000 / 7
USB Device: Apple Cinema HD Display, apple_vendor_id, 0x921e, 0xfd430000 / 6
USB Device: hub_device, apple_vendor_id, 0x911c, 0xfd300000 / 2
USB Device: Apple Cinema HD Display, apple_vendor_id, 0x921c, 0xfd320000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8206, 0x5d200000 / 2
FireWire Device: Rugged FW/USB, LaCie, 800mbit_speed
FireWire Device: built-in_hub, 800mbit_speed
FireWire Device: unknown_device, unknown_speed

Sounds like an issue with the CPU (logicboard), or RAM. Use this article to determine most of these causes:
https://support.apple.com/kb/HT1509
Though a clean test can still mean a problem with RAM.
Is your data backed up?

Similar Messages

Overheating or random shutdown?

Last night I while I was using my iMac it randomly shutdown twice, one right after another.
I have had the random shutdown problem in the past but have not experienced one for quite some time. (I had taken several steps to fix, including running the disk utilities and deleting some power management file. Whatever I did seemed to be working.)
I had also been using iMovie, exporting movies, all day. I had also been heavily using iPhoto and Firefox, moving photos out and onto Facebook. The case was hot to the touch and iStatpro said that the power supply was around 159 degrees F and the CPU was around 135 degrees F. Is it possible I triggered some sort of safety cutoff?
Please help me out here. I love this computer but the random shutdowns are totally killing it. Thanks in advance.

Hello All,
Here's my experience with unexpected shutdowns...
My 20" Intel iMac is 6 months old - August 08.
- After shutting it down one evening as per normal, it just wouldn't turn on the next morning. Nothing I did worked: different power socket, changed the fuse (UK plug) etc. When I had just about given up carrying it around the house, it suddenly came back to life. Went to the shop to buy milk, got back and off it was again. Weird. So I spoke to Apple Care who suggested I take it down to the Apple Store in central London, UK. I laboriously did so (try taking the underground with an iMac... not fun) and dropped it off mid afternoon.
- Got a call the same evening from Apple Store: my iMac turned on fine first time (typical), tests were being run on it (basically stress testing the processor with multiple processes), and it was fine. No fault was found, I could go and pick it up.
- So I take it back home the next day, again battling with London commuters with my heavy, bulky iMac box and plug it in. All fine. Work all day on it as per normal (nothing intensive). Then at about 10pm, it just turns off. No warning, nothing. Just off, and this time its staying off. I let it cool down, nothing. Diffent plugs, nothing. Change the plug fuse, nothing. Next morning, nothing. Its dead.
- So I head off directly to the Apple Store again, iMac in hand, and battle it out again with London commuters on the underground. I explain the situation, am promised this will be a priority repair...
- Eventually, after 10 days (Christmas got in the way), I get a call that it is ready. Two items of hardware were changed, namely 1) power supply and 2) Cable/DC Power/SATA/Inverter. Though none of them were actually faulty, they are the items that can cause sudden shutdowns...
- I pick it up, and it seems fine since. But upon switching it on, I noticed the whole bottom half of my dispay was dim. Bright at the top, grey at the bottom... Another chat with Apple Care (by then am on first name terms with the whole team), we do various hardware resets to no avail. Am advised to drop it off at Apple. So off I go to the Apple Store again.
And I just got it back again.. with a new LCD display...
(http://discussions.apple.com/thread.jspa?threadID=1730239&tstart=0)
So the cost of all repairs to my 6 months old iMac is now more than half of the overall cost of the machine. Still, credit to Apple for not quibbling on any of the above issues, and fixing them (relatively) quickly and efficiently.
Now lets hope my iMac stays on and stays bright...

Let's Try to Figure out the Random Shutdowns - what were you doing ?

I am sure like everyone else experiencing these things, you try to deduce what the variables were to change them to see if it fixes the problem. Please add to the this list if you have noticed anything.
EVERY TIME MY COMPUTER SHUT DOWN I WAS :
- Typing. My computer has never shut off just sitting there running the screen saver or a DVD or whatever
- Once it does shut off there is a rapid succession of shut downs on each start up attempt. But then if I leave it for half an hour or so, it can turn back on, or it always turns on after a power manager reset.
WHAT ISNT CONSISTENT IS :
- before or after the firmware upgrade, it still shuts down
- my macbook can be plugged in or running off battery
- I can be on the net or off it
- the fans may have come on that session of use or not
- the macbook was hot or cold
- I used it for 10 minutes or 5 hours before it shut off

Prior to repair, it could happen when warm or cold, on AC or battery.
After repair, I ran for 3 weeks without a problem. Then I had a random shutdown. At the time, I was using AC with the 3-prong cord (the first time I'd used it since my repair). I was editing photos in iPhoto (before the fix I'd had a few other shutdowns in iPhoto). Some of my editing changes held up after the shutdowns, others didn't.
During the period when everything was working fine (after my repair), my shutdown codes were usually 0 (sometimes 3). When it randomly shutdown, the shutdown code was -72, and has consistently been -72 ever since (even when I shut it down myself). That's the same code I had before the repair when I was regularly having random shutdowns.
I've only had the one random shutdown so far since the repair. I've not used the 3-prong power cord since, and am wondering if somehow that might have triggered that first shutdown. (I had used it fairly regularly prior to repair.) I know that it can still shutdown again whether its on AC or battery, but am wondering if there might be some sort of electrical issue with the cord that zaps something in the computer to make it start acting up in the first place. (The only other explanation I can think of is that the heat generated by the processor slowly cooks the internal components, but it does seem to run cooler since the firmware update.)

K9N Platinum: CPU upgrade = Random shutdowns..

I just installed a new AMD Athlon 64 X2 3800+ EE in my MSI K9N Platinum motherboard (MS-7250 v1.0, the 070 model according to the box). I had updated the BIOS to version 1.7 before installing the CPU. Anyhow, I got the CPU installed and it seemed to be running fine. Until I started playing my games. Upon playing fifteen (!!!) minutes of Day of Defeat, the system completely turned off. COMPLETELY. No error messages. I check core temp's log to make sure the CPU wasnt overheating; it wasnt. The max temp was 38C on one of the cores. Just to make sure the CPU wasnt the problem, I ran two instances of prime95 for 5 hours and there were no calculation errors whatsoever. I also ran 3-4 loops of SuperPi, using the 32M test. No errors.
I have come to the conclusion that it must be the motherboard, and possibly it does not like the CPU. Or else it is having the same random shutdown problems as many other K9N Platinum/Ultra boards are experiencing. From what i have read, this issue only relates to boards that are 040, 050, or 060 models. I have a 070 model, and I AM GETTING THIS PROBLEM!!
Help!!!
Full specs:
MSI K9N Platinum MS7250 V1.0, BIOS 1.7, model 070
AMD Athlon 64 X2 3800+ EE (old CPU: AMD Athlon 64 3500+; had no issues with the 3500+) vcore: 1.225
1 GB OCZ Platinum DDR2-800, 5-5-5-15, 2.1v
eVGA GeForce 7800GT videocard with Zalman VF900, 490/1220
Hitachi Deskstar 7K80 SATA HDD
LITE-ON DVD-ROM drive
Floppy drive
3x 80mm fans, 1 cold cathode
Antec Truepower 430 watt PSU, dual +12v @ 17A a piece.
Any ideas?

well, i know that ACPI has to do with power saving features.
http://en.wikipedia.org/wiki/ACPI
and HPET also has something to do with CPUs
http://en.wikipedia.org/wiki/HPET
and MCP55 is the nortbridge.
so i suppose i can conclude that it protects from overvoltage or promotes more power-saving? i dunno i really dont care as long as my PC works now,

White Macbook 2006 random shutdown solved removed cpu heatsink and more

I picked up a cheap macbook from a secondhand retailer for $300 and it regularly shutdown, froze, restarted as well as the grey kernel panic screen completely random no real pattern. I set about trying to solve the problem swapping ram and hard drive with my identical 2006 macbook (which I had similar problems with last year, fixed that one with a new battery connector cable). The ram and hard drive made no difference so I downloaded istat menus to see if any combination of cpu voltage, current and temperature were causing the random shutdowns. It seemed when the temperature reached certain values the computer would shutdown or freeze(around 30 to 50 degrees). I'd read on other forums about faulty cpu temperature diodes so I reapplied heatsink compound to the cpu heatsink and checked all the wiring for shorts but nothing seemed to solve the problem. I was ready to retire the computer and use it for spares for my other macbook when needed but I pulled the keyboard off one more time and tried something completely radical. This fix requires some forward planning and software installation but it has completely solved my Random shutdowns completely.
for instructions see my next post *Fix for random shutdowns white macbook*

Ok this is not for the non technical person but it is quite a simple process with the right instructions.
This first step is very important install the software coolbook($10) and fan control (Free)( not smc fan control). Set up coolbook to operate the cpu at the lowest speed and voltage for both power adapter and battery(1002MHz and .95Volts). Remove the keyboard to access the computer logic board (instructions can be found at iFixit). Remove the four screws and two connectors holding the heatsink to the logicboard and gently lift the heatsink out (very important that you leave the fan screwed in and connected). Close the computer back up if you wish to test just gently connect the keyboard and loosly sit the keyboard back in. Restart and reset the pram immediately. Let the computer boot up and then open system preferences and configure Fan Control to your liking. So far no random shutdowns for over a week (was getting many a day previously.

Macbook won't detect external display anymore - Random shutdown injury??

Hi,
my Macbook has the dreaded random shutdown thing happening, often it can't even get through the startup sequence. If I reset the PMU and PRAM and check the disk every week I can keep it running. Applecare are making not particularly helpful suggestions like "run it in safe mode" - hello people, random means it can take days to happen again... I use this computer for work so I need it at full capacity every day!!!
Anyway, enough angry ranting. The casualty of today's RS and subsequent PRAM PMU resetting is my external display (Viewsonic LCD). The macbook is no longer sending signals to it (display says "no signal"). When I ask the macbook to "detect displays" nothing happens. I have restarted the macbook several times and unplugged and replugged the display connection it doesn't help. Yes, I have the AC power cable plugged in on the Macbook (I know it doesn't like talking to the screen if I don't).
The display and macbook have always worked fine together in the past...
Does anyone have any suggestions on how to test for causes or fix this display related problem?
MacBook Mac OS X (10.4.8)
Powerbook G4 Mac OS X (10.4.2)

You don't mention ever having brought the problem to Apple's attention, or what resulted from your request for Apple's help with it. This isn't a universal or widespread problem. It may be a hardware fault in your own equipment that needs to be resolved with a repair, or it may be a software problem (corrupt file, incompatible software conflict, update needed, etc., etc.). You seem to think Apple should have fixed it for you without your lifting a finger, and you're eager to complain about Apple's lack of support. But you've offered nothing to indicate that Apple even knows you need support. You do have to ask for it. Have you done so?
We have no idea what steps you've taken to try to narrow down the possibilities, e.g., making sure the monitor is turned on; trying a different video cable as iVmichael has suggested; testing the monitor with the same cable on a different computer; testing a different monitor with the same cable and then with a diferent cable on your computer; substituting a different cable adapter, if you are using one; applying all applicable system software updates and then Repairing Permissions and Repairing Disk; starting in Safe Mode and seeing whether the monitor is recognized and activated then; seeing whether the monitor is detected in System Profiler; and so on. You may have done some of these things, but you haven't told us about them or about the results.

To Everyone with Random Shutdowns! (Solved! REALLY!)

Hey all,
I had posted about a week back about my Macbook (Core duo white, late 2006), it was having the same symptoms as some of the others with the known random shutdown syndrome (RSS). Like many others I had thought it was the end of my macbook and the logicboard needed replacing because that is what the 'genius' people do, but I was still wondering what would cause it. It would randomly shut off! (or so I thought) I'd be typing in Safari, watching a youtube video, and even playing games, it would just shut off and I could hear the hard drive spin down. I'd restart and it would do it again sometimes right away, sometimes hours later.
This got me to thinking (like others have said) that it must be an issue with over heating. To test my theory I backed up my HD, and tried to reinstall Snow Leopard after zeroing the HD (as a fresh install). During the install process the Macbook's fan started to get loud and then it happened, it died again! So, this proved to me that it is NOT a software/OS issue at all, which means the said efforts in other posts of changing screen saver and energy saver settings had nothing to do with the cause! Aha moment!
I thought to myself... something is making it shutdown, obviously, and has to do with too much heat as the fan was going crazy even while reinstalling the OS. After reading many posts on different support forums I came accross the possibility that it could be the heatsink and/or sensor that is attached to it. I also found out that this "RSS" only applies to the non-unibody, core duo, and core 2 duo macbooks... you know what that means?
These models are the only ones with the shared memory and GPU on the same heatsink! GAH! A possible solution presents itself? To make a long post even longer... I removed the keyboard, carefully unscrewed the heatsink and fan and what did I see? Cracked and dried out thermal paste on the CPU AND GPU, they are both under the same heatsink after all, this was bad, really bad.
Luckily I had some Arctic Silver thermal paste in a tube from years ago when I upgraded my PowerMac CPU. Using some rubbing alcohol and a soft cloth I removed the crud on the heatsink, processor, and GPU (I might add that there was way too much paste on there in the first place). I waited an extra few minutes to make sure the alcohol evaporated, and then I applied a small (dime sized) amount of thermal past directly onto the two chips, I aligned the heatsink carefully and gave it a very small gentle push down onto the chips, reattached the sensor wire to the mainboard, and screwed the heatsink back in.
After putting the keyboard back on and making sure all screws were in... I immediately turned on the laptop and reinstalled the OS. The OS install took approximately 10 mintues! (crazy!) The last time I did that it took over 30 mins to install! I was stunned!
After the OS installed I let the computer idle and shut down, I let it sit for about an hour to allow the paste to contract as it cooled. After starting up again I immediately downloaded Temperature Monitor and installed it (I did have it running when my mac had RSS by the way), here are the results to prove my theory:
My Macbook with RSS:
CPU1 and CPU2 Idle temp - 114 degrees (F)
Heatsink temp - 128 degrees (F)
Approximate over heating temp - 184 degrees (F) (causing the heatsink sensor to shutdown the laptop)
My Macbook with new high quality thermal paste:
Idle temp of CPU1, CPU2, and GPU - 77 degrees (F)
Heatsink temp - 84 degrees (F)
Running temp with adobe CS4, youtube, and typing this message - 103 degrees (F)
Pretty amazing if you ask me!
Before I applied the thermal paste my Macbook took at least a minute to start up with a fresh OS install, now it only takes about 15 seconds! I have not heard the fan spin up and go crazy since! And I can't even explain to you how much fast it is now!
This does prove that Random shutdown syndrome (RSS) is caused ONLY by your GPU over heating due to old thermal paste between the chips and heatsink! A design flaw by Apple? probably not because thermal paste will crack and dry over time.
This also proves that energy conversion to data in the chips can decrease because of over heating, causing the computer performance to dramatically drop!
So before you take your out-of-warranty macbook to Apple or a repair shop, see what your internal temp readings are and try to replicate the problem with over heating your CPU/GPU! This was a 10 minute fix! I am still amazed at how much faster everything is, and haven't had a random shutdown since! I hope this helps alot of people that think they are out of luck and have to pay to get it fixed!
- Cory -

I too have this problem as well and it has been getting worse lately, I don't know what to do anymore. Here is a little info about my macbookPro. I have the late 2008 unibody model, i bought it in late 2009 Refurbished from Apple. Recently my mac has been turning off out of nowhere. I may be doing something and all of a sudden it just shuts off, it usually happens faster when i start to open up more programs like Photoshop or Final Cut Pro. My mac is out of warranty now and i dont know how much apple is going to charge me to fix it. i mean they want 50 bucks just to talk to them on the phone (ridiculous if you ask me)!.
    I have a temperature sensor installed and here is my data
CPU A Proximity: 126F
CPU A Temperature Diode: 133F
Graphics Processor Chip 1: 122F
Graphics Processor Heatsink 1: 113F
Graphics Processor Heatsink 2: 126F
Graphics Processor Temperature Diode: 131F
Left Palm Rest: 91F
Main Heatsink 3: 122F
Main Logic Board: 118F
Northbridge Chip: 127F
Northbridge Position: 124F
Here is more data from the Power
Battery Information:
Model Information:
Manufacturer:          GSA-1281
Device Name:          ASMB016
Pack Lot Code:          0
PCB Lot Code:          0
Firmware Version:          0
Hardware Revision:          0
Cell Revision:          0
Charge Information:
Charge Remaining (mAh):          3739
Fully Charged:          No
Charging:          No
Full Charge Capacity (mAh):          4610
Health Information:
Cycle Count:          68
Condition:          Normal
Battery Installed:          Yes
Amperage (mA):          -1766
Voltage (mV):          11793
System Power Settings:
AC Power:
System Sleep Timer (Minutes):          0
Disk Sleep Timer (Minutes):          0
Display Sleep Timer (Minutes):          90
Automatic Restart on Power Loss:          No
Wake on AC Change:          No
Wake on Clamshell Open:          Yes
Wake on LAN:          No
Display Sleep Uses Dim:          Yes
GPUSwitch:          2
PrioritizeNetworkReachabilityOverSleep:          0
RestartAfterKernelPanic:          157680000
Battery Power:
System Sleep Timer (Minutes):          60
Disk Sleep Timer (Minutes):          0
Display Sleep Timer (Minutes):          2
Wake on AC Change:          No
Wake on Clamshell Open:          Yes
Current Power Source:          Yes
Display Sleep Uses Dim:          Yes
GPUSwitch:          2
Reduce Brightness:          Yes
RestartAfterKernelPanic:          157680000
Hardware Configuration:
UPS Installed:          No
AC Charger Information:
Connected:          No
Charging:          No
PLEASE HELP ME, I CAN NO LONGER TRUST MY MAC FOR WORK. any replies will be appreciated. thanks

Random shutdown then fixed?

well like alot of other users i got the random shutdown on my macbook the other night. i've been a long time windows user and finally got around to getting myself one of these nice new macbooks just last friday. (my pervious mac being a powerbook 190cs about 9yrs ago now) anyways all was going well till it randomly shut down on me. so i unplugged it and turned it on again this time it took alot less time to just shut itself down without my input. after this it wouldn't even make mac OS so i held the power button for 15 secs and it booted and didn't shut down for the rest of the night (except for when i reset it).
i had had boot camp installed and while i was in the city today i went into next byte and talked to the guy in there who said that some people had solved it with a software fix. i had a look through these forums and saw that bootcamp didn't seem to play a part in most cases of this happening.
i ended up deleting bootcamp off the hard drive as i was no longer using it after finding replacements for all bar VS 2005 and Access and was using them in parallels. after deleting bootcamp i haven't had a problem however in trying to work out what it was i noticed that instead of displaying the apple logo first up when i booted the machine it held the folder with ? on it for a minute. after getting rid of bootcamp this no longer happened.
i dunno how or why but it no longer seems to be randomly resetting and not turning on. i'm hoping that its fixed becuase i really don't wanna have to send it in to apple for some of the fixes other people have had to do.
anyways i just thought i'd post it incase it helps someone.

Anybody have any ideas?
I shut it down for a couple days. Just tried starting it up last night and it only made it to the login screen before it shut down again. This time it didn't try to turn back on.

Problems with random shutdown after replacing a swollen battery

Hello all,
Perhaps one of you can help with this issue.
I'm using a Macbook Pro 17" mid-2007 model. A few months ago, the power disconnected from the machine when the battery had already run down and the machine did a hard shutdown. When I booted it back up there were serious problems with the display. Eventually it stopped working altogether. I took it for service and it was determined to by the NVIDIA graphics processor problem, so Apple replaced my motherboard.
When I got the machine back from servicing, there was a rattle in the right fan that gradually got worse. After a while the touchpad button stopped depressing in the center. I also experienced several random shutdowns while operating on battery power. I learned about the swelling battery issue with macbooks and ordered a replacement. By the time the replacement battery arrived my original battery was quite swollen. I'm concerned that the swelling battery may have warped the case a bit, leading to the fan noise.
I have now replaced the battery, but I'm still experiencing random shutdowns after 20+ minutes of use on battery power. I have done the RSS tests that were recommended in other forums and there doesn't seem to be any random shutdown problems when I'm plugged in -- only under battery power. My understanding is that a swelling battery can sometimes cause the battery to disengage from the electrical contacts on the MB, causing a sudden shutdown. I'm wondering why the problem is persisting now with a new battery? After one random shutdown, I tried to power up again using the battery, while pushing the battery into place at various angles, but I couldn't find any angle that would give power to the machine. The fan noise is also still present.
Can anyone offer an explanation or advise on any methods to overcome these random shutdowns? I have checked the console and the machine isn't registering any error when it shuts down, although when it restarts it says "DirectoryService[35] Improper shutdown detected"

Yep, it is video (or: or audio for video) so unless you're sure you need it (because you work or will work with the DVC Pro HD video/audio codec), you can remove the plug from its' folder and put it in your documents folder (don't trash it, I have no idea if it is necessary for non-DVC Pro HD users to have it installed too).
The WWW is littered with posts from people encountering bugs and crashreports with DVCPROHDAudio.plugin as the main suspect. Most of those posts seem to be from video people rather than audio folks.
http://www.google.nl/search?q=DVCPROHDAudio.plugin&ie=utf-8&oe=utf-8&aq=t&rls=or g.mozilla:en-US:official&client=firefox-a
But, if you get crashes and you see this one mentioned in the report, disable it, restart, and see if the problem's gone.

Not so random shutdowns...

Hi,
My Macbook is just over a year old now still under applecare, I had random shutdowns before and did the firmware update which fixed it. Yesterday, I had the +please hold down the power button...+ message and so did thinking little of it, after all it is not uncommon to have to do it once in a while. Since then though it has been intermittently restarting all on its own and occasionally throwing up the +please hold power...+ message. Interesting to note is the optical drive noise when it restarts itself. I know how it should sound, the kind of mechanical movement sound that happens when you restart normally (or launch parallels and windows grabs hold of your drive). However, occasionally on these restarts it pauses during this sound several times making the same noise but stuttering through it... Strange!
It seems that I can often make it restart or throw up the power button message by just lifting up the front of the computer, as you would if you were turning it around or something. This leads me to believe it's a hardware fault... Looking under the battery compartment the two outside screws that are on the battery connection side were loose and nearly falling out so I tightened those back up, still the problem persists.
After the last restart message I copied this error report, I have no idea what to look for, just wondering if anyone can see anything helpful?
panic(cpu 1 caller 0x001A4A55): Unresolved kernel trap (CPU 1, Type 13=general protection), registers:
CR0: 0x8001003b, CR2: 0x00270000, CR3: 0x00e08000, CR4: 0x000006e0
EAX: 0x00000000, EBX: 0x00025fde, ECX: 0x02fa4d90, EDX: 0x24188000
CR2: 0x02f67af8, EBP: 0x13f7bfc8, ESI: 0xfc52147b, EDI: 0x0000009c
EFL: 0x00010046, EIP: 0x00101a00, CS: 0x00000004, DS: 0xb018000c
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x2f67968 : 0x128d08 (0x3cc0a4 0x2f6798c 0x131de5 0x0)
0x2f679a8 : 0x1a4a55 (0x3d24b8 0x1 0xd 0x3d1cc8)
0x2f67ab8 : 0x19aeb4 (0x2f67ac4 0xe 0xffe10048 0xc)
0x13f7bfc8 : 0x19b28e (0x2f67b0c 0x1 0x19ad3b 0x2f97d90) No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xbffffb58
Kernel version:
Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386
Model: MacBook1,1, BootROM MB11.0061.B03, 2 processors, Intel Core Duo, 1.83 GHz, 1 GB
Graphics: Intel GMA 950, GMA 950, Built-In, spdisplaysintegratedvram
Memory Module: BANK 0/DIMM0, 512 MB, DDR2 SDRAM, 667 MHz
Memory Module: BANK 1/DIMM1, 512 MB, DDR2 SDRAM, 667 MHz
AirPort: spairportwireless_card_type_airportextreme (0x168C, 0x86), 1.1.9.3
Bluetooth: Version 1.9.0f8, 2 service, 1 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Network Service: Parallels Host-Guest, Ethernet, en2
Network Service: Parallels NAT, Ethernet, en3
Serial ATA Device: WDC WD1200BEVS-60LAT0, 111.79 GB
Parallel ATA Device: MATSHITACD-RW CW-8221
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Bluetooth USB Host Controller, Apple, Inc., Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
I have tried a PMU reset, PRAM reset and whatever it is that happens when you hold the power button when you turn it on to make it beeeeeeep... The issue happens with or without the power cable attached.
Unless anyone can suggest anything here I'll be taking it to the repair centre...
Thanks for reading!

Ok, this is not an answer but it may help you a little: have you checked your logs? It may be an indication of what has happened there. If you don't know the drill: go to console under applications/utilities, select logs, and go there to /library/logs/panic.log. Some information may appear there, for instance if there is some consistent cause like one of your processors, some specific fault.
Not much, I know, but at least you may glean something out of it.

Random Shutdowns on a MBP Core Duo, Suggestions/Help would be great

I've had two random shutdowns of my mac since purchasing it back in August. The first happened on January 11th, when it said it was at 11-12% power. The second happened about two weeks later, at 23% power. I've been looking around these forums and other pages, and haven't really found anything that has helped so far.
Details of the first crash:
Open apps- Firefox (5 windows, two had about 20+ tabs open, the rest were single page, and yes, I know it crashes often with that many), Camino (1 window with 5 tabs), and Word 2004, as well as Quicktime open to the iPhone stream.
I had an USB key plugged in, to which I was saving my Word document.
So I was working in Word while in front of the TV and during an interesting bit, didn't do anything for a minute. So, like the many times earlier, it slept the display to conserve power (in "Better Energy Savings" mode). I moved my finger on the trackpad to wake it back up, and it turned back on the backlighting, and then stopped. I thought it had just went back to sleep, but after a few key presses and a check of the light that usually pulsates when it's sleeping (plus the USB key , I found out that the computer had turned off. I let it sit for a while, and when I plugged it back into AC power and turned it on, with my USB key still plugged in, and although it booted to my desktop, the Finder never started (so no desktop icons for anything), unplugging the USB key fixed this and everything returned to normal. I then installed the only update I was missing, one for iChat, restarted, and continued working.
In the second incident, I only had my browsers open, nothing external plugged in, and my displayed was dimmed to the third darkest level. When it was at about 23% power, it once again randomly shut down. This time, I attempted to turn it back on, and nothing happened. After plugging it into AC power, it turned on and once logged in showed a very low (2-6%) power, so I guess it was reporting the power incorrectly?
Anyways, went back to look at the battery exchange on Apple's website. I had checked before when they started it, and was pretty sure mine wasn't covered, and a second check confirmed that. My Mac's serial is W8618091VWX, which isn't covered by the recall.
So, I have a few questions:
1. Is there a toll-free number I can phone Apple (Canada) at? The only number I've found seems to be only free for those who bought their computer in the last 90 days, which I'm no longer covered by, and haven't been for a while. Talking to someone at Apple would be good.
2. Otherwise, if I took my computer to an Authorized Service Provider, would they be able to take a look at it and answer some questions? I bought my MBP at a London Drugs and they aren't service providers, so how much would it cost to do this?
3. Is there a definite cause for these random shutdowns? It seems to vary among other people, so it would be helpful if I could try something to eliminate one of the causes.
4. Does Tiger report battery levels pretty accurately? In the past when I reached 6% I got a warning and was able to plug it into AC power and had no problems.
Thanks for any help you can provide.
Macbook Pro 2.16 GHZ Core Duo, 15.4", 1GB RAM Mac OS X (10.4.8)

I had this problem of RSD fixed for a while after having had the battery replaced by Apple, till yesterday, when the MBP suddenly experienced a shutdown during a meeting presentation, while it was connected to the AC power. At the first restart, as coming back from a stop-mode, for a while appeared a warning of low-battery level, with battery level indicator flashing red and showing the empty icon but with a 86% of charge level and a new shut-down definitely put the MBP out of service, no way to have it functioning again. Obviously, AC power was OK, no problem with the microphone or the projector ( I was at the podium of an international meeting) and a lucky precaution ( double save of the same presentation on a friend's twin MBP, that worked correctly) saved the job.
Then, a couple of hour later, my MBP started up normally and everything works fine, with or without MAGsafe connected to AC power, almost up to now.
I've read the post with a link to the procedure for resetting the power controller chip on the mainboard, I'll do it in a minute, hoping that this will help.
Any further suggestion?
ambabu, Italy

Random shutdowns X99S SLI Plus, ms-7885

Hello,
I'm trying to narrow down some random shutdowns. These seemed to be completely random and could happen with the computer idling. The computer just shutdowns and reboots. Nothing in the log, no BSOD. I have tried to trigger the problem by running CPU and GPU stresstests without success.
Until wither 3 came out. With witcher 3 the problem is 100% reproducible. Start witcher 3 => shutdown.
I can play other games for hours without any problems.
Can someone give a hint on how to find the problem?
/Tommy
Board: X99S SLI Plus
Bios: 1.8
VGA: Gainward titan X
PSU: Corsair RM750, 750W PSU ATX 12V V2.4, 80 Plus Gold, Modular, 4x 6+2-pin PC
CPU: Intel Core i7-5820K, Socket-LGA2011-3
MEM: Crucial DDR4 Ballistix Sport 32GB (8GBx4), 2400MHz (PC4-19200) CL16 SR x8 Unbuff
HDD: HyperX Predator SSD 240GB M.2 PCIe
COOLER: Cooler Master Seidon 120V v2 CPU
OC: none
OS: Windows 8.1

Some updates...
Tried to run with only two memory sticks, no problem with that. Even if I switch one it works. But with three it crashes after I exit witcher 3. Wierd since I can play the game without problem.
Ran some memtests one only one stick in. Only got errors in the "hammer test" which I guess is ok.
Put all four memories in again and ran memtest over the night. It ran one pass and after that the comp shut down and rebooted.
Downclocked memory to 1333 and ran 4 passes memtest without any crash. Some hammer test errors only.
I'm now trying to run at 2200 and it seems fine. I can play witcher and exit without any crash.
Is it the memory or the MB? Or just a bad combo?
/T

Macbook in repair for kernal panics and random shutdowns.....

It's been exactly one week since I sent in my macbook for random shutdowns. I called today to check on the status and they told me it was on hold because they needed more info from me as they can not replicate the problem. This thing was shutting down on me 3-4 times a day without warning. I gave them all kinds of suggestions, ie: check logic board, power management system, panic logs, etc. Don't these techs know how to troubleshoot? My biggest fear is that they won't find the problem and they'll send my defective Macbook back to me. What are my options then? It was bought for me by a friend in Denver who brought it down to Albuquerque for me (500 miles away) so returning it to a store is not an option. I know other people are having this problem so I know I'm not crazy and delusional. I don't want to be stuck with a defective computer but my 2 week grace period is over. What can I do?
MacBook Mac OS X (10.4.5)

Here's an update on my repair. It's been 2 weeks and they finally found the problem to be a bad logic board. They said it was on hold for repair to replace the board and didn't specify a return time. I expressed a concern with having a month old computer that has already been in for a major repair. After some polite but concerned dialouge between myself and a product specialist, she offered me a new one. I accepted the offer gladly. She even asked black or white? My original was white. So chalk one up for Apple customer support. They seems like they're out to make things right with their customers. You just have to remain calm and patient.

Random Shutdown: Locked Clockspeed, Processor Voltage Correlation?

I use Hardware Monitor to keep track of more sensor readouts than just temps. I recommend everyone install it. Using it, I've discovered some weird behavior in the processor clockspeed and voltage that correlates in a predictable with my typical macbook random shutdown problem. I wonder if others witness the same correlation.
Normally, according to my sensor readings, the clockspeed and cpu voltage fluctuate frequently and continually, presumably according to the demands on the processor. Clockspeed typically runs between 1333Mhz and 2000Mhz, voltage between 1.00 and 1.30V.
When running like this, it is subject to random shutdowns at any time, but most especially — indeed with absolute reliability, so to speak — within ten minutes of waking from sleep — regardless of whether i'm using mail, surfing, playing music, or running intense calculations and (so far as i can tell), regardless of how many or few processes are running simultaneously, and regardless of temperature readings. Indeed, now with the new firmware update my temps are quite low. In fact, since the computer most reliably shuts down soon after waking up, it's temp at shutdown often registers no more than the mid-50s (it'll shut down at 47).
After the macbook shuts down, it refuses to restart reliably with a simple press of the power button. Like many others, I have to hold down the power button for about ten seconds, until I hear the pained protracted beep, before the computer will enter into the normal booting process.
After it boots up like this from a shutdown — and this is what I haven't seen enough commentary on — the processor speed remains locked at 1000Mhz and the voltage at .99V until the computer goes to sleep again.
While the computer is locked into this slow-clockspeed-low-voltage mode, it is absolutely reliable. It never shuts down randomly. It runs much slower. Which is really noticeable and frustrating when using any graphics-intense or movie app.
So my questions are:
Does anyone else experience this sort of locking processor behavior?
Why would the processor lock like this?
Is it possible that the sensors are wrong? That in fact the processor is fluctuating normally but now the computer doesn't "know" it?
How would the processor's ability to vary its clockspeed and the voltage it draws affect its propensity to shutdown randomly?
I would be grateful for the observations of others regarding clockspeed and voltage at shutdown and after rebooting.
Thanks.
macbook 2.0 Ghz, 1.25GB, 80GB, week 20 Mac OS X (10.4.7)

hi
I have exactly same problems and symptoms.
It was a refurbished week 20 unit from apple uk it arrived in excellent condition and worked perfectly for two weeks without the fan comeing on at all it was perfectly quiet but hot.
As this was my first mac I was unaware that this was abnormal I had heard that they ran hot but being new to mac I was on a learning curve. Then two days after the remorse return period it began to shut down the first time was after a period of sleep just after I opened the lid. It then was and still is impossible to start it from warm or cold in the normal way, but only by holding the power down until beep. Then it will work for days at 27 deg c without a problem all be it at the 1 gig reduced speed which as you say is frustrating to say the least. Applecare UK don't acknowledge the problem at all they just want to treat it as a normal warrenty repair at my inconvenience. I am at present awaiting a more generous response from apple. I'm demanding a replacement unit but they just want we to fill out their standard web questionaire. (with non relavant tick boxs) If only one could speak to a real knowledgeable individual at apple I'm sure I'd get some satisfaction. But in this age of executive big bonuses what can one expect.
I hope Apple get real with this soon because the disscussion forums are getting overloaded with this issue its getting harder to login have you noticed.
yours unhappy customer.

Are the replacement Heatsinks fixing people's Random Shutdown problems?

Is the replacement heatsink (the shorter one) still the method of choice from Apple for fixing Random Shutdown problems?
Is it working for people who've had it done recently?

Does this max out the CPU?
Yes. People who advocate this are testing to see if it's possible to induce a "random" shut down.
Why would anyone want to do that?
Good question. I've seen two reasons put forward: (a) It's better to make it happen now yourself rather let it strike out of the blue at some later date (and if running this test doesn't induce RSDs you can feel confident that your computer is probably immune); (b) If you take your MacBook to an Apple Store it could be useful for demonstrating to an Apple "genius" that your computer has the problem, especially if your shutdowns are infrequent.
(personally, I don't agree with (a))
MacBook (OS 10.4.8) iMac G4 (OS 10.3.9)

2 random shutdowns in one session

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