Imac 24 " RAM"
I just bought the 24 inch 2.8GHz imac with the original 2Gb RAM. I wanted to upgrade and bought 2 x 2Gb RAM. When I installed them, the computer sounded beeps told me that something was wrong. I took the RAMs back to the shop and they tested it on a laptop and they worked fine.
The salesperson said something could be wrong with the slots on my imac. Can this be true?
I also noticed that the RAMs i bought from an apple shop was made from a different company than the original ones in the imac.
What is wrong with my machine?
Thank you .
Installing RAM is extremely simple assuming you put in memory as specified for your machine. Look in your owners manual for the correct specifications or click Command and Space Bar at the same time which will start Spotlight. Then type System Profiler and hit enter, then look on the left side of the System Profiler for Memory and click it. This is will display the memory installed and it's specifications.
It will look similar to this:
BANK 0/DIMM0:
Size: 2 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0x7F98000000000000
Part Number: 0x4B494E4753544F4E20202020202020202020
Serial Number: 0xCD227898
BANK 1/DIMM1:
Size: 2 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0x7F98000000000000
Part Number: 0x4B494E4753544F4E20202020202020202020
Serial Number: 0xA103EF68
Then purchase the Type and Speed memory for your machine (I suggest OWC or Crucial) and install following the instructions in your owners manual. The whole process should take less than 10 minutes to do.
Regards,
Roger
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Wed May 15 13:15:05 2013
panic(cpu 2 caller 0xffffff80002c4794): Kernel trap at 0xffffff800063d4b1, type 13=general protection, registers:
CR0: 0x000000008001003b, CR2: 0x00000001000dc000, CR3: 0x0000000000100000, CR4: 0x00000000000606e0
RAX: 0x000e050e5193c9d8, RBX: 0x0000000000000000, RCX: 0xffffff80196d8480, RDX: 0x0000000000000000
RSP: 0xffffff81600dbf00, RBP: 0xffffff81600dbf30, RSI: 0x00000000283baec0, RDI: 0xffffff801a6cf780
R8: 0xffffff7f80fd0523, R9: 0xffffff7f80fd0534, R10: 0x8000000000100000, R11: 0xffffff80002dad00
R12: 0xffffff7f80a1d258, R13: 0x0000000000000000, R14: 0x0000000000000000, R15: 0x0000000000000000
RFL: 0x0000000000010206, RIP: 0xffffff800063d4b1, CS: 0x0000000000000008, SS: 0x0000000000000010
CR2: 0x00000001000dc000, Error code: 0x0000000000000000, Faulting CPU: 0x2
Backtrace (CPU 2), Frame : Return Address
0xffffff81600dbbb0 : 0xffffff8000220792
0xffffff81600dbc30 : 0xffffff80002c4794
0xffffff81600dbde0 : 0xffffff80002da55d
0xffffff81600dbe00 : 0xffffff800063d4b1
0xffffff81600dbf30 : 0xffffff800063c250
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com.apple.iokit.IOAHCIBlockStorage 2.1.0
com.apple.driver.AppleUSBHub 5.1.0
com.apple.driver.AppleFWOHCI 4.9.0
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com.apple.iokit.AppleBCM5701Ethernet 3.2.4b8
com.apple.driver.AppleEFINVRAM 1.6.1
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com.apple.driver.AppleUSBEHCI 5.1.0
com.apple.driver.AppleACPIButtons 1.5
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.7
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.5
com.apple.driver.AppleAPIC 1.6
com.apple.driver.AppleIntelCPUPowerManagementClient 195.0.0
com.apple.nke.applicationfirewall 3.2.30
com.apple.security.quarantine 1.4
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 195.0.0
com.apple.driver.AppleBluetoothHIDKeyboard 160.7
com.apple.driver.AppleHIDKeyboard 160.7
com.apple.driver.IOBluetoothHIDDriver 4.0.8f17
com.apple.kext.triggers 1.0
com.apple.driver.DspFuncLib 2.2.5a5
com.apple.iokit.IOSurface 80.0.2
com.apple.iokit.IOSerialFamily 10.0.5
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com.apple.iokit.IOAudioFamily 1.8.6fc18
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com.apple.driver.AppleHDAController 2.2.5a5
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com.apple.driver.AppleGraphicsControl 3.1.33
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com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.5
com.apple.driver.AppleUSBBluetoothHCIController 4.0.8f17
com.apple.iokit.IOBluetoothFamily 4.0.8f17
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.2.1
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOUSBHIDDriver 5.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice 3.2.1
com.apple.iokit.IOUSBMassStorageClass 3.0.3
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com.apple.driver.AppleUSBComposite 5.0.0
com.apple.driver.AppleThunderboltNHI 1.6.0
com.apple.iokit.IOThunderboltFamily 2.0.3
com.apple.iokit.IOUSBUserClient 5.0.0
com.apple.iokit.IOFireWireFamily 4.4.8
com.apple.iokit.IO80211Family 420.3
com.apple.iokit.IOEthernetAVBController 1.0.1b1
com.apple.iokit.IONetworkingFamily 2.1
com.apple.iokit.IOAHCIFamily 2.0.8
com.apple.iokit.IOUSBFamily 5.1.0
com.apple.driver.AppleEFIRuntime 1.6.1
com.apple.iokit.IOHIDFamily 1.7.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 177.9
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.DiskImages 331.7
com.apple.iokit.IOStorageFamily 1.7.2
com.apple.driver.AppleKeyStore 28.18
com.apple.driver.AppleACPIPlatform 1.5
com.apple.iokit.IOPCIFamily 2.7
com.apple.iokit.IOACPIFamily 1.4
Thank you for reading. I apologize for the long post.Had another kernel panic: this time during Skype, as usual. When the kernel panic occurs, the sound will skip and loop while the alert displays--and it always seems to happen when either me or my contact is speaking. I can be in call for several hours before this happens. The only major contributor to these panics I can see now is my headset.
I am using a Razer Carcharias headset (I know, Razer is starting to fail me), that has no drivers, and standard 3.5mm jacks. The mic doesn't work, as the iMac is only line-in, but that never bothered me because I prefer to use the built-in one. The headset is set as an output device both in Skype and in System Preferences -->Sound. I've gone several days without being on Skype, and still using the headset for iTunes and so on--no panics. But after a few hours of Skype, no matter what I'm doing as long as that's running: panic. Every time.
Some people on these forums have reported issues with panics when plugging in headphones or removing them, but I've never had that sort of problem. The log which I post below makes mention of a razerhid text that did not appear before I removed the mouse. I removed that kext by uninstalling another Razer driver before making this post, and testkext does not show any kext by that name running now.
But I can't figure out why a HID kext or driver would interfere with sound devices. It must be the headset somehow, which greatly disappoints me, as I've used the external speakers in calls for a year without issue.
Others have mentioned fears that these kinds of panics might be an issue with the logic board. I severely hope it's not a logic board issue: because of the wait times with Apple repair, I'd probably have to have my parents drive the machine in, drive back, wait a week, and repeat. This computer is quite literally my livelihood, but I can't ask them to drive two to three hours one way just for that. (Sadly, the only shops in a 50 mile radius that even mention Mac repair are those that have techs, in some cases uncertified, do repairs. Can't void my AppleCare like that.)
I am considering contacting Razer support and seeing if they have any advice on the issue. Here's my latest kernel panic log (ignore the razerhid kext, removed it already)
Fri May 17 16:02:25 2013
panic(cpu 0 caller 0xffffff80002c4794): Kernel trap at 0xffffff80003d401c, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffff80ffffff98, CR3: 0x0000000000100000, CR4: 0x00000000000606e0
RAX: 0x00000000366789ce, RBX: 0x0000000000008168, RCX: 0x00000000005976b6, RDX: 0xffffff8019bf2220
RSP: 0xffffff8160293f20, RBP: 0xffffff8160293f70, RSI: 0xffffff8160293ee8, RDI: 0xffffff8019bf2220
R8: 0x7fffffffffffffff, R9: 0x7fffffffffffffff, R10: 0x8000000000100000, R11: 0xffffff800063dc04
R12: 0xffffff80003d3fc0, R13: 0x0000000000000000, R14: 0xffffff80ffffff80, R15: 0xffffff80ffffff80
RFL: 0x0000000000010282, RIP: 0xffffff80003d401c, CS: 0x0000000000000008, SS: 0x0000000000000010
CR2: 0xffffff80ffffff98, Error code: 0x0000000000000000, Faulting CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff8160293bd0 : 0xffffff8000220792
0xffffff8160293c50 : 0xffffff80002c4794
0xffffff8160293e00 : 0xffffff80002da55d
0xffffff8160293e20 : 0xffffff80003d401c
0xffffff8160293f70 : 0xffffff800023dbbc
0xffffff8160293fb0 : 0xffffff8000820057
BSD process name corresponding to current thread: kernel_task
Mac OS version:
11G63b
Kernel version:
Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5
System model name: iMac12,1 (Mac-942B5BF58194151B)
System uptime in nanoseconds: 69769850451127
last loaded kext at 33439879880: com.apple.driver.AppleBluetoothHIDKeyboard 160.7 (addr 0xffffff7f81d2f000, size 20480)
last unloaded kext at 141596393685: com.apple.driver.AppleUSBUHCI 5.1.0 (addr 0xffffff7f80a72000, size 65536)
loaded kexts:
com.razer.common.razerhid 1.5
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleMikeyHIDDriver 122
com.apple.driver.AudioAUUC 1.59
com.apple.driver.AppleUpstreamUserClient 3.5.9
com.apple.driver.AppleMikeyDriver 2.2.5a5
com.apple.driver.AppleHDA 2.2.5a5
com.apple.driver.AGPM 100.12.75
com.apple.kext.ATIFramebuffer 7.3.2
com.apple.driver.AppleSMCPDRC 5.0.0d8
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.iokit.IOBluetoothSerialManager 4.0.8f17
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleSMCLMU 2.0.1d2
com.apple.driver.AudioIPCDriver 1.2.3
com.apple.driver.ApplePolicyControl 3.1.33
com.apple.driver.ACPI_SMC_PlatformPlugin 5.0.0d8
com.apple.driver.AppleLPC 1.6.0
com.apple.ATIRadeonX3000 7.3.2
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com.apple.driver.AppleMCCSControl 1.0.33
com.apple.driver.AppleIntelHD3000Graphics 7.3.2
com.apple.driver.BroadcomUSBBluetoothHCIController 4.0.8f17
com.apple.driver.AppleIRController 312
com.apple.iokit.IOAHCISerialATAPI 2.0.3
com.apple.iokit.SCSITaskUserClient 3.2.1
com.apple.driver.AppleUSBCardReader 3.0.6
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.1.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 33
com.apple.driver.AppleUSBHub 5.1.0
com.apple.driver.AirPort.Atheros40 505.67.1
com.apple.iokit.AppleBCM5701Ethernet 3.2.4b8
com.apple.driver.AppleEFINVRAM 1.6.1
com.apple.driver.AppleFWOHCI 4.9.0
com.apple.driver.AppleAHCIPort 2.3.1
com.apple.driver.AppleUSBEHCI 5.1.0
com.apple.driver.AppleACPIButtons 1.5
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.7
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.5
com.apple.driver.AppleAPIC 1.6
com.apple.driver.AppleIntelCPUPowerManagementClient 195.0.0
com.apple.nke.applicationfirewall 3.2.30
com.apple.security.quarantine 1.4
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 195.0.0
com.apple.driver.AppleBluetoothHIDKeyboard 160.7
com.apple.driver.AppleHIDKeyboard 160.7
com.apple.driver.IOBluetoothHIDDriver 4.0.8f17
com.apple.kext.triggers 1.0
com.apple.driver.DspFuncLib 2.2.5a5
com.apple.iokit.IOSurface 80.0.2
com.apple.iokit.IOSerialFamily 10.0.5
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.iokit.IOAudioFamily 1.8.6fc18
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 2.2.5a5
com.apple.iokit.IOHDAFamily 2.2.5a5
com.apple.driver.AppleSMC 3.1.3d10
com.apple.driver.IOPlatformPluginLegacy 5.0.0d8
com.apple.driver.IOPlatformPluginFamily 5.1.1d6
com.apple.driver.AppleSMBusPCI 1.0.10d0
com.apple.driver.AppleGraphicsControl 3.1.33
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.driver.AppleThunderboltEDMSink 1.1.8
com.apple.driver.AppleThunderboltEDMSource 1.1.8
com.apple.driver.AppleSMBusController 1.0.10d0
com.apple.kext.ATI6000Controller 7.3.2
com.apple.kext.ATISupport 7.3.2
com.apple.iokit.IONDRVSupport 2.3.4
com.apple.driver.AppleIntelSNBGraphicsFB 7.3.2
com.apple.iokit.IOGraphicsFamily 2.3.4
com.apple.driver.AppleUSBBluetoothHCIController 4.0.8f17
com.apple.iokit.IOBluetoothFamily 4.0.8f17
com.apple.driver.AppleThunderboltDPOutAdapter 1.8.5
com.apple.driver.AppleThunderboltDPInAdapter 1.8.5
com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.5
com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.2.1
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOUSBHIDDriver 5.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice 3.2.1
com.apple.iokit.IOUSBMassStorageClass 3.0.3
com.apple.iokit.IOSCSIArchitectureModelFamily 3.2.1
com.apple.driver.AppleUSBMergeNub 5.1.0
com.apple.driver.AppleUSBComposite 5.0.0
com.apple.driver.AppleThunderboltNHI 1.6.0
com.apple.iokit.IOThunderboltFamily 2.0.3
com.apple.iokit.IOUSBUserClient 5.0.0
com.apple.iokit.IO80211Family 420.3
com.apple.iokit.IOEthernetAVBController 1.0.1b1
com.apple.iokit.IONetworkingFamily 2.1
com.apple.iokit.IOFireWireFamily 4.4.8
com.apple.iokit.IOAHCIFamily 2.0.8
com.apple.iokit.IOUSBFamily 5.1.0
com.apple.driver.AppleEFIRuntime 1.6.1
com.apple.iokit.IOHIDFamily 1.7.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 177.9
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.DiskImages 331.7
com.apple.iokit.IOStorageFamily 1.7.2
com.apple.driver.AppleKeyStore 28.18
com.apple.driver.AppleACPIPlatform 1.5
com.apple.iokit.IOPCIFamily 2.7
com.apple.iokit.IOACPIFamily 1.4 -
How much can a G4 be upgraded to, is it 1GB only?
Hi Hamper,
Just to further add to Steve's reply, there were seven different releases of the G4 iMac:
1. iMac (Flat Panel) aka Tessera, P80 - Introduced Jan 2002, Discontinued Feb 2003 - Max RAM = 1GB
2. iMac (17-inch Flat Panel) aka P79 - Introduced July 2002, Discontinued Feb 2003 - Max RAM = 1GB
3. iMac (15-inch Early 2003) - Introduced Feb 2003, Discontinued Sep 2003 - Max RAM = 1GB
4. iMac (17-inch Flat Panel, 1GHz) - Introduced Feb 2003, Discontinued Sep 2003 - Max RAM = 1GB
5. iMac (15-inch USB 2.0) aka Horizon, Q268 - Introduced Sep 2003, Discontinued July 2004 - Max RAM = 2GB
6. iMac (17-inch USB 2.0) aka Horizon, Q26C - Introduced Sep 2003, Discontinued July 2004 - Max RAM = 2GB
7. iMac (20-inch USB 2.0) - Introduced Nov 2003, Discontinued July 2004 - Max RAM = 2GB
All models had one factory installed module (earlier models had 512MB factory installed, later models had a 1GB module factory installed) and one user accessible module.
What you must understand is that Apple, and indeed any computer manufacturer, can only specify maximum RAM specifications with the memory modules that were publicly available at the time of release (or when the specs were written). Since they were released, larger memory modules have become more widely available (not to mention cheaper). You most certainly can install a 1GB or 2GB module in your iMac and it will be recognised.
If you have further questions there is a Flat Panel iMac Category with frequent contributors who will be able to help you. You can access it here:
http://discussions.apple.com/category.jspa?categoryID=137
Kryten -
Anyone know if this ram will work for the iMac Mid/Late 2007?
Kingston 2GB 667MHz Laptop Memory (KTH-ZD8000B/2G)Just done the upgrade last night using Kingston P2 5300 per apple support site. As my Imac 7.1 20" Aug 2007 similar to yours. Yesterday price for 2x2G @ S$55 each @ SimLim Sq.
Did the Hitachi 1T HDD upgrade at the same time too (learn from Internet). Bought a Torx8 S$3 + HDD at S$72. I am very happy as it work. was down to 2G HDD space & now have 600+G to use. -
Dear all,
Hopefully this isn't a huge repeat topic.
I am looking to get the new iMac 5K. I have held off for around a year now as I thought they'd bring a high res iMac.
For me though, 8GB of RAM isnt enough. I am not willing to give apple £160 for an extra 8GB. So I would upgrade myself but here is my question/s.
Can I simply install 1 x 8GB card, is it that simple? Does the stock 8GB of RAM come as 2 x 4GB? Does this mean I need to buy 2 x 4GB RAM Cards?
Also, is the access to the Ram cards still in the back or is it now more complicated? I don't want to risk damaging anything, especially the display by opening the iMac.
Any help would be appreciated.According to the published specs here:
https://www.apple.com/imac-with-retina/specs/
Apple wrote:
8GB (two 4GB) of 1600MHz DDR3 memory; four SO-DIMM slots, user accessible
Configurable to 16GB or 32GB.
That means yes, the stock 8GB comes 2 x 4GB modules, and you can add a 8GB ram module to one of the remaining slots. Make sure it matches the speed of the currently installed modules for best performance.
You can buy a single 8GB module or 2x4GB modules. Its up to you.
The access panel is on the back.
https://www.ifixit.com/Guide/iMac+Intel+27-Inch+EMC+2639+RAM+Replacement/20249 -
My imac is a 27" mid 2011 model, 3.1Ghz intel core i5 with 4GB stock ram. I use programs like Adobe Premier Pro, After Effects, Photoshop, illustrator, Lightroom4 (pretty much everything on the Adobe Master Suite Collection CS6), Ableton Live, Protools etc. I understand that it IS possible to MAX out at 32GB of RAM.
My question is... Has anyone on here upgraded to 32GB of RAM on the imac? Any problems or glitches? i really want to upgrade but not sure if i should do 16GB or 32GB? Can you see any difference between 16GB and 32GB?
Thanks in advance,
MoeHi Moe, it can indeed hold 32GB...
Standard RAM:
4 GB
Maximum RAM:
32 GB*
Details:
By default, 4 GB of RAM is installed as two 2 GB SO-DIMM modules. Two slots free. *Officially, this model supports four 4 GB modules -- one in each slot for a maximum of 16 GB of memory. However, third-parties have discovered that it actually will support 32 GB of memory using four 8 GB modules. In the US (and many other countries), site sponsor Other World Computing sells memory -- as well as other upgrades -- for this iMac. In Canada, site sponsor The Mac Market sells memory and other upgrades for this iMac. In Australia, site sponsor RamCity sells memory and other upgrades for this iMac. Also see: Actual Max RAM of All G3 & Later Macs.
http://www.everymac.com/systems/apple/imac/specs/imac-core-i5-3.1-27-inch-alumin um-mid-2011-thunderbolt-specs.html
To get an idea if it would help...
In the Memory tab of Activity Monitor, are there a lot of Pageouts?
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