Resolved 8GB To 16GB

Discussion in 'iMac' started by Macman45, Sep 30, 2011.

  1. Macman45, Sep 30, 2011
    Last edited: Jan 4, 2012

    Macman45 macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #1
    Okay, so I'm happy with my iMac (July 2011 8GB RAM 2GB VRAM 27") But i do very intensive rendering, photo an music work. Toyed with 16GB at purchase time but thought I'd wait and see.

    The machine is an I7 blisteringly fast, and it's hard to slow it down even when I'm making it work it's Backside off. But now and then it will slow down when multi-tasking etc. So I'm looking for the proper modules to take me to 16Gb Apple prices a tad high Ideas for a UK based outfit?
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    Amazon has 8GB (2 x 4GB modules) for 31£.

    So if you already have two 4GB modules, it isn't that expensive, only if you have 2 2GB modules, as you need to spend 61£ for 16GB then.
     
  3. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #3
    Thanks For The Link

    I have 2 fours, its just a drop panel/ seat modules replace screws...The price is right but I'm not sure about the pedigree of the chips....Seems too cheap to be true!

    ----------

    I know I'm being fussy, but would prefer branded tested 1333 guaranteed....Made the mistake of buying too cheep before and ended up buying twice!

    I've never heard of this company....Anyone tried these modules?
     
  4. cerb macrumors newbie

    Joined:
    Jun 22, 2011
    #4
    no, the price is ok. i bought 16gb off amazon a few weeks ago - very good, original supplier and cheap like hell: 104 euros

    http://www.amazon.de/SAMSUNG-Origin...L08Q/ref=sr_1_1?ie=UTF8&qid=1317376509&sr=8-1

    edit: oh i just saw, your link wasn't original samsung memory. don't go for the corsair - had them once in my 2009 macbook pro, started to crash every once in a while after some time. put in the original memory (though only 4 and not 8gig) and the crashes were gone.

    i'd never put anything different than samsung memory into a mac again.
     
  5. Coerce macrumors newbie

    Joined:
    Jun 27, 2011
    Location:
    England
    #5
    Why not get the Crucial or Corsair kits further down, only £9 more.
    Both are good brands.

    Or try www.scan.co.uk
     
  6. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #6
    Crucial

    Yep, good call but they offer generic and branded.....Looks like I'm going to have to pay a little more.....Never mind, it's nothing compared to what my iMac cost originally:D
     
  7. Badradio macrumors 6502

    Joined:
    Aug 19, 2004
    Location:
    Manchester
    #7
    If you use Crucial.com's system scanner, they guarantee the memory they ship. I've always used them, and have never had an issue.
     
  8. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #8
    Thanks All

    Bought from Crucial £39.00 delivery tomorrow. The sales guy say's Apple buy from them and re-badge? Wouldn't surprise me.

    Better get the little screwdrivers out! :)
     
  9. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #9
    I Thought This Would Be Easy

    Okay, got my modules by post this morning, unscrewed the tracy and put them in place. (They dot look the same add the ones that are in there now, and to my mind they don't "push" far enough in)

    They do seem to make correct contact though.

    Imac Is Mid 2011 i7

    Rebooted and got the restart loop, so uninstalled the newbies rebooted and got this:




    Interval Since Last Panic Report: 691789 sec
    Panics Since Last Report: 1
    Anonymous UUID: 71299BB2-228E-4353-8B73-F9B5740A7598

    Sat Oct 1 09:32:50 2011
    panic(cpu 6 caller 0xffffff80002c268d): Kernel trap at 0xffffff8000293571, type 13=general protection, registers:
    CR0: 0x0000000080010033, CR2: 0x00007f9c55814000, CR3: 0x000000004b0f103c, CR4: 0x00000000000606e0
    RAX: 0xff7fff8016789fc0, RBX: 0xffffff8006950f60, RCX: 0x0000000000000000, RDX: 0x0000000000000b5c
    RSP: 0xffffff80f22131b0, RBP: 0xffffff80f22131d0, RSI: 0x00000000328c7bde, RDI: 0xffffff800584f188
    R8: 0xffffff80008bdfa0, R9: 0xffffff8006cf24c8, R10: 0xfffffe804c0a0c18, R11: 0x000800000002060e
    R12: 0xffffff80047fa000, R13: 0xffffff8006950f60, R14: 0x00000000000aa31c, R15: 0xffffff800584f188
    RFL: 0x0000000000010246, RIP: 0xffffff8000293571, CS: 0x0000000000000008, SS: 0x0000000000000010
    CR2: 0x00007f9c55814000, Error code: 0x0000000000000000, Faulting CPU: 0x6

    Backtrace (CPU 6), Frame : Return Address
    0xffffff80f2212e70 : 0xffffff8000220702
    0xffffff80f2212ef0 : 0xffffff80002c268d
    0xffffff80f2213090 : 0xffffff80002d7a3d
    0xffffff80f22130b0 : 0xffffff8000293571
    0xffffff80f22131d0 : 0xffffff80002936db
    0xffffff80f22131f0 : 0xffffff8000293c56
    0xffffff80f2213c30 : 0xffffff8000280275
    0xffffff80f2213ca0 : 0xffffff8000280b66
    0xffffff80f2213cd0 : 0xffffff8000280ee4
    0xffffff80f2213d00 : 0xffffff8000281c56
    0xffffff80f2213d30 : 0xffffff8000273bf7
    0xffffff80f2213e20 : 0xffffff800027487a
    0xffffff80f2213e50 : 0xffffff800025484c
    0xffffff80f2213e80 : 0xffffff8000222ff6
    0xffffff80f2213eb0 : 0xffffff8000214829
    0xffffff80f2213f10 : 0xffffff800021bb58
    0xffffff80f2213f70 : 0xffffff80002ae380
    0xffffff80f2213fb0 : 0xffffff80002d83a3

    BSD process name corresponding to current thread: Dock

    Mac OS version:
    11B26

    Kernel version:
    Darwin Kernel Version 11.1.0: Tue Jul 26 16:07:11 PDT 2011; root:xnu-1699.22.81~1/RELEASE_X86_64
    Kernel UUID: D52AAB80-B2BC-3C6E-BBEA-78BD28064998
    System model name: iMac12,2 (Mac-942B59F58194171B)

    System uptime in nanoseconds: 20269464183
    last loaded kext at 19444317560: com.apple.driver.AppleBluetoothMultitouch 66.3 (addr 0xffffff7f81e67000, size 53248)
    loaded kexts:
    com.apple.driver.AppleBluetoothMultitouch 66.3
    com.apple.driver.AppleHWSensor 1.9.4d0
    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.AppleMCCSControl 1.0.26
    com.apple.driver.AppleHDA 2.1.1f12
    com.apple.driver.AppleMikeyDriver 2.1.1f12
    com.apple.driver.AppleTyMCEDriver 1.0.2d2
    com.apple.driver.AGPM 100.12.40
    com.apple.kext.ATIFramebuffer 7.0.8
    com.apple.iokit.IOUserEthernet 1.0.0d1
    com.apple.driver.AppleSMCLMU 2.0.1d2
    com.apple.Dont_Steal_Mac_OS_X 7.0.0
    com.apple.driver.AudioIPCDriver 1.2.0
    com.apple.driver.AirPort.Atheros40 500.55.5
    com.apple.driver.ACPI_SMC_PlatformPlugin 4.7.0b2
    com.apple.driver.AppleMuxControl 3.0.16
    com.apple.driver.AppleLPC 1.5.1
    com.apple.ATIRadeonX3000 7.0.8
    com.apple.driver.AppleBacklight 170.1.9
    com.apple.driver.AppleIntelHDGraphics 7.0.8
    com.apple.driver.AppleIntelSNBGraphicsFB 7.0.8
    com.apple.iokit.SCSITaskUserClient 3.0.1
    com.apple.driver.AppleUSBCardReader 3.0.0
    com.apple.driver.AppleIRController 309
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
    com.apple.BootCache 32
    com.apple.iokit.IOAHCIBlockStorage 2.0.1
    com.apple.driver.AppleUSBHub 4.5.0
    com.apple.driver.AppleFWOHCI 4.8.9
    com.apple.iokit.AppleBCM5701Ethernet 3.0.8b2
    com.apple.driver.AppleAHCIPort 2.2.0
    com.apple.driver.AppleUSBEHCI 4.5.0
    com.apple.driver.AppleUSBUHCI 4.4.5
    com.apple.driver.AppleEFINVRAM 1.5.0
    com.apple.driver.AppleACPIButtons 1.4
    com.apple.driver.AppleRTC 1.4
    com.apple.driver.AppleHPET 1.6
    com.apple.driver.AppleSMBIOS 1.7
    com.apple.driver.AppleACPIEC 1.4
    com.apple.driver.AppleAPIC 1.5
    com.apple.driver.AppleIntelCPUPowerManagementClient 166.0.0
    com.apple.nke.applicationfirewall 3.0.30
    com.apple.security.quarantine 1
    com.apple.driver.AppleIntelCPUPowerManagement 166.0.0
    com.apple.driver.AppleMultitouchDriver 220.62
    com.apple.driver.IOBluetoothHIDDriver 2.5f17
    com.apple.kext.triggers 1.0
    com.apple.iokit.IOBluetoothSerialManager 2.5f17
    com.apple.iokit.IOSerialFamily 10.0.5
    com.apple.driver.AppleAVBAudio 1.0.0d11
    com.apple.driver.AppleHDAHardwareConfigDriver 2.1.1f12
    com.apple.driver.DspFuncLib 2.1.1f12
    com.apple.driver.AppleSMBusController 1.0.10d0
    com.apple.iokit.IOSurface 80.0
    com.apple.iokit.IOFireWireIP 2.2.4
    com.apple.iokit.IOAVBFamily 1.0.0d22
    com.apple.driver.AppleHDAController 2.1.1f12
    com.apple.iokit.IOHDAFamily 2.1.1f12
    com.apple.iokit.IOAudioFamily 1.8.3fc11
    com.apple.kext.OSvKernDSPLib 1.3
    com.apple.iokit.IO80211Family 400.40
    com.apple.driver.ApplePolicyControl 3.0.16
    com.apple.driver.AppleSMC 3.1.1d2
    com.apple.driver.IOPlatformPluginFamily 4.7.0b2
    com.apple.driver.AppleSMBusPCI 1.0.10d0
    com.apple.driver.AppleGraphicsControl 3.0.16
    com.apple.driver.AppleBacklightExpert 1.0.3
    com.apple.driver.AppleThunderboltEDMSink 1.1.3
    com.apple.driver.AppleThunderboltEDMSource 1.1.3
    com.apple.kext.ATI6000Controller 7.0.8
    com.apple.kext.ATISupport 7.0.8
    com.apple.iokit.IONDRVSupport 2.3
    com.apple.iokit.IOGraphicsFamily 2.3
    com.apple.driver.AppleUSBHIDKeyboard 152.3
    com.apple.driver.AppleHIDKeyboard 152.3
    com.apple.driver.AppleFileSystemDriver 13
    com.apple.driver.AppleThunderboltDPOutAdapter 1.5.0
    com.apple.driver.AppleThunderboltDPInAdapter 1.5.0
    com.apple.driver.AppleThunderboltDPAdapterFamily 1.5.0
    com.apple.driver.AppleThunderboltPCIDownAdapter 1.1.8
    com.apple.driver.BroadcomUSBBluetoothHCIController 2.5f17
    com.apple.driver.AppleUSBBluetoothHCIController 2.5f17
    com.apple.iokit.IOBluetoothFamily 2.5f17
    com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.0.1
    com.apple.iokit.IOBDStorageFamily 1.6
    com.apple.iokit.IODVDStorageFamily 1.6
    com.apple.iokit.IOCDStorageFamily 1.7
    com.apple.iokit.IOSCSIBlockCommandsDevice 3.0.1
    com.apple.iokit.IOUSBMassStorageClass 3.0.0
    com.apple.iokit.IOAHCISerialATAPI 2.0.0
    com.apple.iokit.IOSCSIArchitectureModelFamily 3.0.1
    com.apple.iokit.IOUSBHIDDriver 4.4.5
    com.apple.driver.AppleUSBMergeNub 4.4.5
    com.apple.driver.AppleUSBComposite 3.9.0
    com.apple.driver.XsanFilter 403
    com.apple.driver.AppleThunderboltNHI 1.2.8
    com.apple.iokit.IOThunderboltFamily 1.6.3
    com.apple.iokit.IOUSBUserClient 4.4.5
    com.apple.iokit.IOFireWireFamily 4.4.5
    com.apple.iokit.IOEthernetAVBController 1.0.0d5
    com.apple.iokit.IONetworkingFamily 2.0
    com.apple.iokit.IOAHCIFamily 2.0.7
    com.apple.iokit.IOUSBFamily 4.5.0
    com.apple.driver.AppleEFIRuntime 1.5.0
    com.apple.iokit.IOHIDFamily 1.7.0
    com.apple.iokit.IOSMBusFamily 1.1
    com.apple.security.sandbox 165
    com.apple.kext.AppleMatch 1.0.0d1
    com.apple.security.TMSafetyNet 7
    com.apple.driver.DiskImages 326
    com.apple.iokit.IOStorageFamily 1.7
    com.apple.driver.AppleKeyStore 28.18
    com.apple.driver.AppleACPIPlatform 1.4
    com.apple.iokit.IOPCIFamily 2.6.7
    com.apple.iokit.IOACPIFamily 1.4
    Model: iMac12,2, BootROM IM121.0047.B0A, 4 processors, Intel Core i7, 3.4 GHz, 8 GB, SMC 1.72f2
    Graphics: AMD Radeon HD 6970M, AMD Radeon HD 6970M, PCIe, 2048 MB
    Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020
    Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020
    AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.55.4-P2P
    Bluetooth: Version 2.5.0f17, 2 service, 19 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Serial ATA Device: WDC WD1001FALS-403AA0, 1 TB
    Serial ATA Device: OPTIARC DVD RW AD-5680H
    USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
    USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 4
    USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3
    USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 3
    USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfa120000 / 5
    USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0xfa122000 / 7
    USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4
    USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 6
    USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 2


    An error report.

    Have Crucial supplied the wrong sodimms?
     
  10. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #10
    Some Additional Info.

    Without the new modules the iMac is fine, the installed 8gb (2x4) have horizontal facing dimm chips. The newly supplied ones have vertically aligned chips.

    The installed 8GB seems to fit further into the tray, but the new ones are slightly proud of the older ones.

    The only other thing I can think of is that I'm being too gentle? But that would simply result in a clean boot with only *GB reported I would think....

    The sales guy seemed to know his stuff (this iMac is a hybrid of sorts) asking me for CPU speed and type before confirming the order....Grrr I hate this kind of thing, gonna ring their necks for wasting my time if these newbies are wrong and need swapping out!
     
  11. SaSaSushi macrumors 68040

    SaSaSushi

    Joined:
    Aug 8, 2007
    Location:
    Takamatsu, Japan
    #11
    For the Mid-2011 iMac you will want to make sure the RAM you've got is PC3-10600 (1333 MHz) 204 pin SO-DIMMs.

    You will have to apply a fair amount of force to get the DIMM seated. There will be a slight click when they are seated correctly. Don't hesitate to apply pressure until you feel it. If you've only got them halfway seated with some of the pins making contact it could cause problems.
     
  12. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #12
    Thanks For That

    I shall try again...Ive checked the modules and they are the correct ones as far as both Crucial and Apple are concerned...I may be being to gentle.....I'm going in again...Will post back when up and running again, or on my Air if not.
     
  13. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #13
    Thanks Again

    The drama is officially over, and I now have 16GB! The thing with fitting iMac ram is the nature of the place you err....stick it really! It's hard to get the force required to seat the new modules properly.

    I used a little more force and hey presto....!6GB and even faster render times!

    With apologies to Crucial who I was about to berate!

    Happy day's again:D

    ----------

    Many thanks, more umphh was required!
     
  14. SaSaSushi macrumors 68040

    SaSaSushi

    Joined:
    Aug 8, 2007
    Location:
    Takamatsu, Japan
    #14
    Cheers! Yeah, it does seem to take a little more pressure than you'd think it would. I remember breaking a sweat when I upgraded my own as I was pressing down on the DIMM thinking I was going to hear a "crack" sound at any moment. :D

    Glad to hear the RAM is fine. For the record, I noticed a huge difference from 8GB to 16GB, particularly when running Windows 7 in Parallels. Now I can have both OSes running in peaceful coexistence with 4GB allocated to Windows.
     
  15. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #15
    I'm Looking Forward

    To pushing it, but I'm all Mac, so will be starting a new project next week, this was no slouch with 8GB at rendering, but I'm expecting better multi-tasking with the 16 installed.

    Once again, many thanks!
     
  16. Macman45 thread starter macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #16
    Call Me Crazy

    Having just gone to 16GB from 8GB...But.......

    I cleaned up, ran all daily scripts (Onyx) to clear out the junk, then thought I'd do some benchmarking...At the moment, my iMac is re-rendering a 4.2GB music video, streaming music to my DTS, I have several sites and my admin stuff running.....I CAN'T SLOW IT DOWN.....:D

    And here is where the crazy bit comes in....I was kinda wondering "What If" I take it up further....When would I hit the hardware wall?

    Otherwise......Unless it slows down, I will I know I will.

    Anybody want some cheap RAM? :D:D
     
  17. Mikey86uk macrumors 6502

    Joined:
    Jul 3, 2010
    Location:
    England
    #17
  18. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #18
    None, as that is RAM for desktop PCs, and the iMacs use notebook RAM modules like the MBP and MB an Mac mini.

    This would work: http://www.overclockers.co.uk/productlist.php?groupid=701&catid=8&subid=1264 , as you need 204-pin 1333 MHz PC3-10600 DDR3 SO-DIMMs.

    You seem to be from the UK, so why not use the links already provided in here?
    Be aware, that your current iMac uses two 2GB modules to have 4GB of RAM.
     
  19. Mikey86uk macrumors 6502

    Joined:
    Jul 3, 2010
    Location:
    England
    #19
    my bad, sorry :eek:

    does fitting your own RAM void your apple care?
     
  20. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #20
    No, Apple even describes the procedure in the User Guide.
     

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