My new iMac mid 2010 i7 and the problems with 16 G ram. A summary .

This is a summary of my findings with 16 G OWC ram. The story and details in my first thread on this issue:
http://discussions.apple.com/thread.jspa?threadID=2560826&tstart=75
In the past 20 days I have tried- out/tested the OWC rams in pairs of two (8G) in my iMac. No problems at all.
Last thursday I put all the 4 OWC rams (16G)into my iMac and now after about 7 hours I had the sudden shutdowns again.
Based on my own experience with the OWC ram and reading thru the many threads on the Apple Support forum written about this problem I come to the conclusion that by itself the OWC ram is ok. But when put together in a kit of 16 G ram it is causing the so called sudden shutdowns in the new mid 2010 iMac i5/i7. And this seems to be the case with most 3rd party ram. (OWC, Crucial, Strontium, etc)
Also it appears, judging from some threads/posts , that people who have the original 16 G Apple ram do not have these problems.
I have informed or will do so shortly both Apple and OWC about it.
peterwillem

Hi I've went down to 14GB 12 of OWC's NuRam & 1-2GB stick of the original ram supplied by Apple. So far no random shut downs however I did have one lockup which forced me to hold the power button down to shut it down. The system rebooted normally but the display was asleep when it was frozen and even the old 3 finger salute wouldn't phase it.
The only other strange behavior was an odd message telling me that my "Your Mac start up disc has no more space available for application memory."
A 3rd party program SnowTape was running but wasn't responding and the other open applications were Mail, Safari and Finder. I only opened Little Snapper to capture the message afterwards along with the info from iStat.
Here's what I captured from the iStat drop down:
Wired 674MB
Active 8.87GB
Inactive 4.38GB
Free 79MB
Page ins: 78,895
Page outs: 5,169.368
Swap: 59.00 GB
Snow tape 12.07 GB(!!)
Windows Server 110MB
Mail 80MB
Helper 55MB
mds 48MB
I'm curious if it's possible that my migration from a 32 bit Intel iMac w/a Core Duo could have anything to do with it since I used XSlimmer quite a bit to trim the PPC code and some Intel 64 bit long before I purchased my new Core i7 iMac? Another reason I brought that up is an unrelated topic on BluRay ripping
Message was edited by: Uncle Mac OSX

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The Operating System shoes me everytime this error !
Anonymous UUID:       ED4DAC83-9B50-8715-CFC5-73ACA25B60B1
Wed Nov 13 11:03:50 2013
panic(cpu 1 caller 0xffffff7f909f8fac): "GPU Panic: [<None>] 5 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff80adb56000 0x0a5480a2, D0, P3/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.4.12/src/Apple MuxControl/kext/GPUPanic.cpp:127
Backtrace (CPU 1), Frame : Return Address
0xffffff808ad83420 : 0xffffff800e622f69
0xffffff808ad834a0 : 0xffffff7f909f8fac
0xffffff808ad83570 : 0xffffff7f8f0ba53d
0xffffff808ad83630 : 0xffffff7f8f186d9e
0xffffff808ad83670 : 0xffffff7f8f186dfc
0xffffff808ad836e0 : 0xffffff7f8f40b5be
0xffffff808ad83810 : 0xffffff7f8f1aad41
0xffffff808ad83830 : 0xffffff7f8f0c108d
0xffffff808ad838e0 : 0xffffff7f8f0bebae
0xffffff808ad83ae0 : 0xffffff7f8f0c04d7
0xffffff808ad83bb0 : 0xffffff7f90055ffd
0xffffff808ad83d30 : 0xffffff7f90055a03
0xffffff808ad83d40 : 0xffffff7f9001acd0
0xffffff808ad83d50 : 0xffffff7f9001ad45
0xffffff808ad83d60 : 0xffffff7f8fffcb11
0xffffff808ad83da0 : 0xffffff7f8fffb335
0xffffff808ad83dd0 : 0xffffff7f8ffff29d
0xffffff808ad83e00 : 0xffffff7f8fa0c232
0xffffff808ad83e20 : 0xffffff7f8fa0c1c5
0xffffff808ad83e50 : 0xffffff7f9000bcb0
0xffffff808ad83e80 : 0xffffff7f8fffba63
0xffffff808ad83ed0 : 0xffffff7f8fff9441
0xffffff808ad83ef0 : 0xffffff800eaada80
0xffffff808ad83f30 : 0xffffff800eaac522
0xffffff808ad83f80 : 0xffffff800eaac5f7
0xffffff808ad83fb0 : 0xffffff800e6d6aa7
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         com.apple.GeForceTesla(8.1.8)[67BAF872-A238-3787-AB74-22297A51FE8F]@0xffffff7f8 fff3000->0xffffff7f900bdfff
            dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f8ecba000
            dependency: com.apple.iokit.IONDRVSupport(2.3.6)[86BA68C6-18DD-30A1-ABF6-54597AD6C277]@0xff ffff7f8f059000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.6)[38E388A5-92D6-3388-B799-F2498E582287]@0 xffffff7f8f016000
            dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.1.8)[0A1B6F41-168D-307A-BABD-162F3B3 C2786]@0xffffff7f8f069000
         com.apple.iokit.IOSurface(91.0)[BC96A900-DD9D-3F36-AFE6-EF88CB4B3607]@0xffffff7 f8fa08000->0xffffff7f8fa19fff
BSD process name corresponding to current thread: kernel_task
Mac OS version:
13A603
Kernel version:
Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64
Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393
Kernel slide:     0x000000000e400000
Kernel text base: 0xffffff800e600000
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 1241550929282
last loaded kext at 267897920816: com.apple.filesystems.msdosfs          1.9 (addr 0xffffff7f90afb000, size 65536)
last unloaded kext at 432680682924: com.apple.filesystems.msdosfs          1.9 (addr 0xffffff7f90afb000, size 57344)
loaded kexts:
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.driver.AGPM          100.14.11
com.apple.filesystems.autofs          3.0
com.apple.iokit.IOBluetoothSerialManager          4.2.0f6
com.apple.driver.AppleMikeyHIDDriver          124
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.driver.AppleHDA          2.5.2fc2
com.apple.driver.AppleIntelHDGraphics          8.1.8
com.apple.driver.AppleMikeyDriver          2.5.2fc2
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.0f6
com.apple.GeForceTesla          8.1.8
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleHWAccess          1
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleIntelHDGraphicsFB          8.1.8
com.apple.driver.AppleLPC          1.7.0
com.apple.driver.AppleSMCLMU          2.0.4d1
com.apple.driver.AppleUpstreamUserClient          3.5.13
com.apple.driver.AppleMuxControl          3.4.12
com.apple.driver.AppleMCCSControl          1.1.12
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.driver.SMCMotionSensor          3.0.4d1
com.apple.driver.AppleUSBTCButtons          240.2
com.apple.driver.AppleUSBTCKeyboard          240.2
com.apple.driver.AppleIRController          325.7
com.apple.driver.AppleUSBCardReader          3.3.5
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          35
com.apple.iokit.SCSITaskUserClient          3.6.0
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.4.0
com.apple.driver.AppleUSBHub          650.4.4
com.apple.driver.AirPort.Brcm4331          700.20.22
com.apple.driver.AppleFWOHCI          4.9.9
com.apple.driver.AppleAHCIPort          2.9.5
com.apple.iokit.AppleBCM5701Ethernet          3.6.9b9
com.apple.driver.AppleUSBEHCI          650.4.1
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleACPIButtons          2.0
com.apple.driver.AppleRTC          2.0
com.apple.driver.AppleHPET          1.8
com.apple.driver.AppleSMBIOS          2.0
com.apple.driver.AppleACPIEC          2.0
com.apple.driver.AppleAPIC          1.7
com.apple.driver.AppleIntelCPUPowerManagementClient          216.0.0
com.apple.nke.applicationfirewall          153
com.apple.security.quarantine          3
com.apple.driver.AppleIntelCPUPowerManagement          216.0.0
com.apple.AppleGraphicsDeviceControl          3.4.12
com.apple.kext.triggers          1.0
com.apple.iokit.IOSerialFamily          10.0.7
com.apple.driver.DspFuncLib          2.5.2fc2
com.apple.vecLib.kext          1.0.0
com.apple.iokit.IOAudioFamily          1.9.4fc11
com.apple.kext.OSvKernDSPLib          1.14
com.apple.iokit.IOSurface          91
com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.0f6
com.apple.iokit.IOBluetoothFamily          4.2.0f6
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.nvidia.classic.NVDANV50HalTesla          8.1.8
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.nvidia.classic.NVDAResmanTesla          8.1.8
com.apple.driver.AppleGraphicsControl          3.4.12
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IONDRVSupport          2.3.6
com.apple.driver.AppleSMBusController          1.0.11d1
com.apple.driver.IOPlatformPluginFamily          5.5.1d27
com.apple.driver.AppleHDAController          2.5.2fc2
com.apple.iokit.IOGraphicsFamily          2.3.6
com.apple.iokit.IOHDAFamily          2.5.2fc2
com.apple.driver.AppleSMBusPCI          1.0.12d1
com.apple.driver.AppleSMC          3.1.6d1
com.apple.driver.AppleUSBMultitouch          240.6
com.apple.iokit.IOUSBHIDDriver          650.4.4
com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.0
com.apple.iokit.IOUSBMassStorageClass          3.6.0
com.apple.driver.AppleUSBMergeNub          650.4.0
com.apple.driver.AppleUSBComposite          650.4.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.0
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOAHCISerialATAPI          2.6.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.0
com.apple.iokit.IOUSBUserClient          650.4.4
com.apple.iokit.IO80211Family          600.34
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IOAHCIFamily          2.6.0
com.apple.iokit.IOEthernetAVBController          1.0.3b3
com.apple.driver.mDNSOffloadUserClient          1.0.1b4
com.apple.iokit.IONetworkingFamily          3.2
com.apple.iokit.IOUSBFamily          650.4.4
com.apple.driver.AppleEFINVRAM          2.0
com.apple.driver.AppleEFIRuntime          2.0
com.apple.iokit.IOHIDFamily          2.0.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          278.10
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.AppleKeyStore          2
com.apple.driver.DiskImages          371.1
com.apple.iokit.IOStorageFamily          1.9
com.apple.iokit.IOReportFamily          21
com.apple.driver.AppleFDEKeyStore          28.30
com.apple.driver.AppleACPIPlatform          2.0
com.apple.iokit.IOPCIFamily          2.8
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.pthread          1
com.apple.kec.corecrypto          1.0
Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i7, 2.66 GHz, 4 GB, SMC 1.58f17
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533654465238432D47372020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533654465238432D47372020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.22)
Bluetooth: Version 4.2.0f6 12982, 3 services, 15 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: TOSHIBA MK5055GSXF, 500,11 GB
Serial ATA Device: HL-DT-ST DVDRW GS23N
USB Device: Hub
USB Device: BRCM2070 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Internal Memory Card Reader
USB Device: Apple Internal Keyboard / Trackpad
USB Device: Hub
USB Device: Built-in iSight
USB Device: IR Receiver
Thunderbolt Bus:

Mid-2010 15" MacBook Pros - the bad NVIDIA GPU
If you're having frequent kernel panics with your 15" mid-2010, or intermittent screen problems, the problem is, more than likely, the faulty NVIDIA GPU found in a number of those machines.
Here's just a sample of a kernel panic log that points to the faulty NVIDIA card:
Kernel Extensions in backtrace (with dependencies):
         com.apple.GeForce(6.4.0)@0x82ac4000->0x82b7afff
            dependency: com.apple.NVDAResman(6.4.0)@0x834a0000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x82fd3000
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x7a802000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x8301b000
         com.apple.nvidia.nv50hal(6.4.0)@0x83c05000->0x84019fff
            dependency: com.apple.NVDAResman(6.4.0)@0x834a0000
         com.apple.NVDAResman(6.4.0)@0x834a0000->0x8378dfff
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x7a802000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x82fd3000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x8301b000
Here's the "official" Apple take on the issue - but the very real kernel panics need not be preceded by 'Intermittent black screen or loss of video'... in fact, you might not experience any video problems at all. Although video problems can certainly be a portent of things to come…
So what can you do? Print out a copy of your kernel panic and a copy of the Knowledge Base article and take them, along with your machine, to your local Apple Store or an Apple Authorized Service Provider. The unfortunate thing is that many people have passed the “three years from date of purchase” now and Apple is not honoring the free logic board replacement for many users. Some dealers seem to be making some exceptions for those past the three year mark, but don’t count on it…
Good luck,
Clinton

I have an iMac mid-2010 running Snow Leopard. Is it possible to install Mavericks and Windows 8 on separate partitions while keeping Snow Leopard?

I have an iMac mid-2010 running Snow Leopard 10.6.8. Is it possible to install Mavericks and Windows 8 on separate partitions while keeping Snow Leopard? If so, can you describe the steps?

That should not be a problem as long as there is enough room on each partition for each OS.
You would:
Use Disk Utility to partition your HD
Download the Mavericks installer and install it on one of the open partitions (when you run the installer from your 10.6.8 partition, it will ask you where you want to put Mavericks, and you will specify one of the open partitions).
Use Boot Camp to install Windows on another of the open partitions. Mac Basics: Using Windows on your Mac via Boot Camp

My 21" display on iMac (mid 2010) is overheating so much I can't sit at my computer for more than an hour or so. Also, some shadowy shapes appear in the background on the upper left of the screen.

Processor 3.06 GHz Intel Core i3
Memory 12 GB 1333 MHz DDR3
Software Mac OS X Lion 10.7.5 (11G63)
iMac 21" display
My 21" display on iMac (mid 2010) is overheating so much I can't sit at my computer for more than an hour or so. Very hot. Also, some shadowy shapes appear in the background on the upper left of the screen. Any thoughts?

Thanks for the swift reply, I have been looking online and a loose plug seems to be somewhat of an issue with many, I hope mine is actually a problem and not what others are experiencing. It's taken me this long to even reach out for the simple fact I HATE being a complainer but this is just horrible.
Do you have an iPad 3 as well? And is yours not experiencing any issues close to mine?
Thanks again!

Ok, so i bought a imac 27 about 4 months ago, and now they release a new one! ****... So my question is, should I sell this one (which by the way is the i5 2.8 with 1 gb 5750 and 4gb ram) and buy the new imac 27 i5,or keep the one i have and buy more ram

ok, so i bought a imac 27 about 4 months ago, and now they release a new one! ****... So my question is, should I sell this one (which by the way is the i5 2.8 with 1 gb 5750 and 4gb ram) and buy the new imac 27 i5,or keep the one i have and buy more ram. I mostly use my computer for photoshop cs5 and illustrator cs5 for graphics out put as well as surfing the web and music.
Please give me you thoughts on what I should do!! Thanks lot!

The new iMac is about 25% or so faster than your current iMac(comparable model would be the 3.1ghz version). There are a couple of things that you will benefit from such as the dual Thunderbolt/Mini Display ports/ which may help with multitasking. The video card in the new iMac again the comparable model being the 3.1ghz is a lotttttttt better than the current one that you have. So thinking of the long run those few things may be beneficial for you to upgrade(but it depends on what is important to you).
I had the 2.93ghz i7 version that I just bought in March this year and I turned around and sold it about a week before the new iMac's were announced. I got about $1600 for it, yeah I took a loss but to me it was worth it because my new iMac performs that much better. Now keep in mind I went from i7 to i7...3.4ghz i7 with the 2gb video card. Now I have dual thuderbolt/mini display ports. I have noticed significant gains in my video editing and also in my gaming. So to me it was definitely worth the upgrade!
One last thing, I would not have sold my 2.93 i7 and then bought the 3.1ghz i5, the big reason is because HT(hyper threading), it's only on the i7 model(3.4ghz)... If you take a look at some of the bench marks on engadget, maclife, macrumors, macworld, ****Barefeats.com(they really get into benchmarking)*** you will see charts that will help you make a better decision.
In closing I would say look into it, if you can get a good price out of your current iMac to put toward a new iMac then do it. Like others have mentioned to you, tech changes and Apple will change the tech in these machines next year or do a speed bump later this year or so. One last thing if you go from the 2.8 i5 up to the 3.4 i7, you would definitely see the difference (HT is a must especially for programs that utilize it. You can go to my youtube channel(mob1278) and take a look at my geekbench results.... my 2.93 i7 scored around 10500-11000(8gb ram)...my 3.4 i7 scores from 12700-13000 with 4gb ram....so yeah as you can see big difference. Basically the 3.4 i7 would perform similar or just under a 2.4ghz 8core 2010 Mac Pro which runs you about $3500 with no monitor.... it's your money spend it how you want....and Lion is only going to push it even more when it is released!

My new iMac mid 2010 i7 and the problems with 16 G ram. A summary .

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