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.

Similar Messages

Random Shutdown Problem Fixed (for now)

I experienced the same random shutdown problems/symptoms with my MacBook that have been extensively described in this forum and elsewhere. I sent it back for repair under AppleCare and it was returned in 3 days. It has been running now for 4 days with no problems and far cooler and quieter (the fan rarely comes on) than it was before. The repair sheet indicates that the heat sink and heat assembly unit were replaced.
I'll keep my fingers crossed, but at least in my case and perhaps others, the problem may simply have to do with the thermal contact with the heat sink going bad and the processor simply shuts down due to overheating.
MacBook 2 GHz Mac OS X (10.4.7)

Followup:
They told me something interesting at my Mac Retailer. They have had two other machines brought in doing the same thing. They tried new logic boards with no success, they tried new thermal assemblies with no luck, new ram - nothing seemed to solve the problem.
What they finnally did was replace the Hard Drive - they tell me this has fixed the problem. Now I don't know if that is what they'll do to mine. The other two machines had the 60gb drives - mine is a 100gb, but we'll see. From all I have heard, this doesn't make a lot of sense to me. Anyway, we'll see what happens.
Anyone else hear anything about replacing the hard drive?
Clayton

Random Shutdown - software fix?

I've been experiencing RSD for the past couple of weeks (coming out of sleep mode), and have been looking through the postings for a confirmed fix.
I noticed 2 separate messages where the posters indicated apple care cancelled their open tickets and asked them to wait for a software fix.
Has this happened to anyone else? Could a software fix be possible, or was apple care telling people the wrong information?

Good News!
Last week I got a new logic board for my MB. After two hours working the MB shut down again!
I called Apple Care to get further informations and told them about the fix on macfixit.com the day before yesterday. And guess what... today my service provider have done the job!!!
I have made some tests right now... over 2h running with 100% CPU usage at 1.83 GHz. Bofore the repair it shut down after 1 minute under same condition.
It seems to be ok now. Tomorrow more reports....
MacBook 1.8GHz, 1GB Mac OS X (10.4.7) my first apple

Random Shutdowns Started Again After Fix - Some Questions for Others

::sigh::
After a very prompt repair followed by 3 weeks of constant use with no problems, tonight I had another random shutdown. (Here we go again.) I never was able to find anyone at Apple who could tell me what they fixed (it was not a logic board replacement) but apparently it wasn't a permanent fix.
Some observations and questions:
When random shutdowns start, my "previous shutdown code" in the system log changes to -72, and continue to register as -72 even when I shutdown the computer myself. During the period when the system was working after the repair, shutdown codes were always 0s or 3s. Have others noticed the same pattern? In my experience, once that first negative code appears, it doesn't change back to normal, regardless of how the computer is turned off (except after the repair).
Also, tonight was the first time since my repair that I used the 3-prong power cord with the AC adapter (rather than just the two prong). Could there be any connection (perhaps a faulty cord sendinga surge to the system and damaging something)? During the last round, shutdowns occurred whether on AC power or battery, but I'm wondering if the use of that cord may have triggered the problem in the first place. Has anyone that has had random shutdowns never used the 3-prong cord at all?
The other thing I've noticed is that importing digital camera photos into iPhoto often seems to trigger shutdowns (not all of them, but some of them). My random shutdown tonight happened after editing photos I'd just imported from my camera (and right after I ejected and unplugged the camera). Could the connection to the camera somehow cause a problem? Has anyone who has had random shutdowns NOT connected a digital camera or used iPhoto?
Just grasping at straws here to try to figure out what causes this problem (since apparently Apple hasn't figured it out yet). Looks like I'm going to have to take it back again. I love my MacBook better than any PC I've ever had, but I never had these kind of hardware problems with my PCs (and if I did have a problem it was usually pretty simple to troubleshoot and repair).

I think you're confused, it's not as simple as that.
Here's why - I just ran two yes terminal sessions on my wife's MacBook and let it run for 15 minutes. Fan came on, system is running warm but running just fine.
On my RSD MacBook, while I was at the Apple Store, trying to demonstrate the RSD it ran two yes terminals for like 5 minutes and kept running however when I closed Terminal - wham RSD.
It IS NOT heat related. Most likely the system "thinks" there's a heat problem by a bad sensor, wire whatever.
If I can't run my MacBook at 100% (actually 200%, both cores) for as long as I need then it is defective and should be returned to Apple.
When my MacBook was working I ran EVN (Escape Velocity NOVA) which runs under Rosetta, man that thing sucked the battery dry in less than 60 minutes and the system got pretty warm too. BUT IT KEPT running and didn't shut down. When my system was acting up I couldn't even browse the Apple web site and ut would shutdown.
Greg
PS I installed the SMC update a week before my system started having RSD.

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)

Vista - Sleep FINALLY fixed, still annoying Random Shutdowns

Ok, they FINALLY fixed it so the Mac Pro wakes from sleep in Vista RC1 with the recent EFI update, now they need to fix the Random Shutdowns. These occur as if you were telling your system to shutdown, I do not suspect the power supply because it is not an abrupt power loss, it gracefully shuts down, but of-course is annoying as h3ll...
Here's looking forward to the Leopard/Vista releases when all of this should be worked out!
SH
Does Vista RC2 run any better? Have better Bluetooth support?

... well... that was really a (slap in face) help ??
I never tried sleep or hibernate, but I read the latest RTM had some fixes in there regarding better support now for laptops and sleep.
Ignorance is bliss perhaps? or, it is a mixed world? or, there is still software that is not available...
How about, curiosity? that's always been man's greatest strength, too.
Being able to run Windows Vista on Mac Pro must be something even Apple engineers are keep to do and improve on.
Every release for OS X takes a couple updates to be "ready" for use. Long-term that has meant 2-3 updates for the last three+ releases, and each release meant more work for everyone, developer and end user, while "rules" change and hardware and software has to be updated to accommodate those changes. Even good changes are still costly, and some have been costly.
I've lived and survived FIVE releases, $600+ for one machine license, and over a year of that was "1.0" issues all over again. And the same story will get played out next year, too, bet on it.
Some people like to explore linux and alternatives. I have, and while I've never felt linux offered the desktop experience I want, I thought SuSE 6.4 gave OS 8/9 a real run for the money at the time.
Things to Love/Hate about Vista
I can now help my Dad 1200 miles away with his PC Windows w/o needing a PC. I can run multiple VMs. One computer, multiple OSs. VMware, Parallels, CrossOver, as well as native installs.
And maybe, just maybe, a more secure desktop PC will help everyone. However, a really good balanced review might actually be one from ComputerWorld - Vista may make Mac converts of IT folks!
IT folks can support XP/Vista and be running Mac OS X
ComputerWorld article

Temp fix to random shutdown (plug AC/remove battery)

I avoid this discussion board b/c of the hardcore fanboy-ism (rated members is a joke) but I want to drop off this temporary fix for random shutdowns:
Plug in your power adapter and remove your battery.
It seems to lock the cpu at 1ghz even at 100% load under the: "yes > /dev/null & yes > /dev/null" test.
I have been running this test for over 30min now with no random shutdowns where before I could not survive the 1 minute mark.
My cpu is now running at 1.0ghz/151F/100%.
Try for yourself and post your results.

Good News!
Last week I got a new logic board for my MB. After two hours working the MB shut down again!
I called Apple Care to get further informations and told them about the fix on macfixit.com the day before yesterday. And guess what... today my service provider have done the job!!!
I have made some tests right now... over 2h running with 100% CPU usage at 1.83 GHz. Bofore the repair it shut down after 1 minute under same condition.
It seems to be ok now. Tomorrow more reports....
MacBook 1.8GHz, 1GB Mac OS X (10.4.7) my first apple

Why did this fix my random shutdowns?

They started after a genius removed and replaced my battery. I then did the same thing, and haven't had a shutdown in two days with multiple power up/down cycles. Could a poorly seated battery actually cause a random shutdown?

was it shutting down when it was plugged in?

Random Shutdown Fix

My 2007 Black Macbook has the Random Shutdown Syndrome, and I want it fixed. For the love of $1400 in what I thought was a fantastic investment, how do I fix RSS?

Yes. Typically something like iMovie that requires a little more oomph, but just yesterday I tried to watch a DVD and it happened. I've noticed it actually happens more when connected to AC power, but it happens without being connected as well. Here is the system profile battery information from just now:
Model Information:
Manufacturer: DP
Device name: ASMB013
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: a41b
Hardware Revision: 0000
Cell Revision: 0000
Charge Information:
Charge remaining (mAh): 3321
Fully charged: No
Charging: No
Full charge capacity (mAh): 5017
Health Information:
Cycle count: 71
Condition: Normal
Battery Installed: Yes
Amperage (mA): -2003
Voltage (mV): 11475
And why would I need to boot from my install disc to run Disc Utility? I have not done this.

20-30% battery life then random shutdown

hello all,
MBP age: 32 months
Cycles: 764
Original Capacity: 6300 mAh
Current Capacity: 2652 mAh
I've been having random shutdowns on my computer over the past 1 month. It started to happen at 10% gradually increasing.
Is it time to bite the bullet and get a new battery. Looking around the internet it seems 700 cycles is a lot. The common advice seems to be saying huge degradation after 300.
Does anyone know the average life span of the MBP battery?

Hi gain, Paul,
For a long time, it was hard to even find a third-party MBP battery. I see few reports here of people using them. One factor that made me shy of third-party offerings was that one of my most trusted parts vendors did not offer a battery for the MBP although they did so for most older Mac notebooks.
Now that vendor is listing MBP batteries:
http://eshop.macsales.com/item/Newer%20Technology/BAP17MBP66RS/
(you did say 17", right?)
How well they work, I can't say. I can say that, with other products, this firm has provided me with excellent support and service.
Usually their "hi-cap" batteries cost more than an Apple replacement; this one is less.
OWC does business internationally but I have no idea how the exchange rate, shipping, duties and VAT would affect your cost. Also, should it not work, returns would be harder from the Emerald Isle than from my part of the world.
If the problems of using an overseas vendor are too daunting, I'd go with buying one from Apple.
If you have a link to the battery you saw, post it and I'll take a look at its specs.
Regards,
Allan

Macbook problems, hard drive crash, random shutdown, freezes

I bought my macbook used a few months ago, and it worked flawlessly until about 3 weeks ago. The system started freezing and not booting (getting folder icon instead of apple at startup). I ran drive setup and tried to repair the drive, but this did not fix the problem. DiskWarrior also could not fix it. I pulled the drive and installed a new hard drive, as I wanted a larger capacity anyways. All my problems appeared fixed for about two weeks, then similar problems began occurring. I backed up all the files I needed to an external firewire drive and attempted to reformat the new internal drive. Drive Setup says it can not reformat the drive - can't mount it and if it does, the drive disappears while in the process of formatting. I pulled the new drive and am having it replaced under warranty. I am using the firewire drive to run my computer, and this seemed to work fine for a day or two until the computer just started shutting down with no warning. Everything goes black, including the little light on the front of the computer. I have to hold down the power button for 10 seconds before it lets me start the computer back up. I had read this may be a memory issue, so I ran memtest and it says the memory is fine (I need to do it in single user mode still, however). I also tried pulling both sticks of ram. They are both 1GB crucial memory. I put each stick in by itself and tried it in both slots and was able to reproduce the shutdown issue with any ram configuration of either stick.
After all this, I realized the firewire drive was only running 10.5, so I updated all the software through software update, and it is now running 10.5.2. It seems to be working better as I have not experienced a random shutdown yet, but I'm anticipating it may start back up soon. Today, however I experienced a different problem - the screen froze on me and the only way to get anything to happen was to force a shutdown with them power button. It's restarted and seems to be working fine again for now.
I've run some logs and here's some things I've found:
When the latest freeze happened, I got this repeated over 100 times:
Apr 29 11:04:31 jon-turners-macbook quicklookd[536]: CGContextClosePath: no current point.
I've also seen this:
Apr 29 11:18:19 jon-turners-macbook kernel[0]: Previous Shutdown Cause: 3
Apr 29 11:18:19 jon-turners-macbook kernel[0]: GFX0: family specific matching fails
Apr 25 19:19:50 localhost kernel[0]: hi mem tramps at 0xffe00000
Should there be anything else I can check? I would run Apple Hardware Utilities, but I don't have the original disks, just the Leopard installer. I have Disk Warrior, but it seems strange this would happen with multiple systems and drives. I'd like to get Techtool Pro, but haven't had the money/time to order it yet.

Thanks for the replies!
Yeah, I think it's the HDD. I was just worried that the RAM was bad and corrupted the HDD or something, but given the symptoms I think you guys are right. Ordered a 7200RPM 320GB HDD off Amazon Prime...will be here tomorrow
I'll post how it goes after I finish installing it. I'm backing up as I type.
I wonder if I can fix the ir port and the sleep indicator light when I install the hard-drive. The sleep indicator light never turns off. It stays on as long as my computer is on, only turns off when I shut it down.

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 Because of Heat Sensors?

I bought my white MacBook in mid-May (week 19 production) and it worked fine with the exception of a whine when I did not have the iSight Cam on, the occasional mooing after using the computer heavily then using the CPU lightly for a while, and the discoloration. If you ask me it wasn't that much of a set back because this computer was fast and reliable... or so I had thought!
All of a sudden about a week ago, after I had the discoloration fixed, thanks to AppleCare (which only took 5 days), my computer shut down randomly in the middle of light usage...
At first I had thought that my external hard drive was the problem and I was very upset that this had happened. I tried to reboot my computer, but all that would happen was the usual DVD drive start up sound and then it would turn off again. I tried about 5 times to restart it with no luck, so I walked away. About 20 minutes later I was able to start it back up...
After not using my external hard drive for a day, it happened again, in the middle of normal internet browsing and listening to music it randomly shutdown. I thought that maybe it was an OS 10.4.7 issue, because I had not had any problems with x.6, so I erased and restarted from scratch, and once again, another MacDeath. Once again, I thought it to be my fault in my installation of 2Gb of RAM. I re-installed the custom 2x256 RAM that came with the computer ( and will remain in my hands forever, because you can't even pay someone to take away a stick of 256Mb RAM these days) well after the old RAM was forcefully shoved back in, it died again! This is when I started to get mad...
I put up with the whinning, I put up with the heat, I put up with the discoloration (for a while), but now this? WHY!
Over the next week it happened almost daily and sometimes when I would turn on my computer after it being off for at least 5 hours, it would load my home screen and after about a minute I would hear the fan come on for a few seconds, and then it would die again. I noticed that most times that my MacBook would shutdown unexpectedly, the fan had just turned on for a few seconds or I was playing a game and the fan was already on...
So today I called AppleCare and I had to wait about 30 minutes before I talked to someone... (When I called last time about discoloration, the wait was about 5 minutes) So either there are more and more angry customers calling, or Apple is firing employees to increase their stock value...?
When I finally got through the man told me that it was most likely not the Logic Board, but instead FAULTY HEAT SENSORS and/or FAULTY HEAT SINK APPLICATION. I won't lie I have seen Core Duo Temp show readings as high as 91 C (about 196 degrees F). I knew that this things got hot, but not so hot as to start a fire if left on too long....
So I am getting a box from DHL tomorrow (woohoo) MacB. and I get to part ways again, but this time, from reading many threads, I assume our time apart will be much longer approaching around 2 WEEKS!!!
All I hope is that AppleCare will fix the heat sensors that are supposed to shutdown the computer when it gets overheated.... I have to go to school in about a month and I will not have time to deal with these kinds of issues! I really like the MacBook and all of it's features, but I did not sign up to get a MacDieOnMeBook!
APPLE USE SOME OF THE 24% SALE INCREASE THIS QUARTER TO HELP YOUR LOYAL CUSTOMERS WHO HAVE BEEN WITH YOU THROUGH THE GOOD AND THE BAD!
MB 2GHz White 2GB RAM - 250 GB External HD Mac OS X (10.4.6)

As of yet i'm not exactly sure about the heatsink problem, although a few in here have reported machines that work well after having this part replaced, while others who only had the MLB replaced reported a recurrence of the problem.
as for the volume indicator, i noticed that mine did that too, but it was in fact muted whether or not the tool bar indicated it. i dismissed this as a small quirk, similar to when my volume indicator didnt change as i pressed the volume buttons on my old laptop. but so long as there was an acknowledging "squirt" noise on the computer indicating change of volume, that shouldnt be a problem.
good luck withyour MB

Random shutdown then fixed?

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