Resolved 8GB To 16GB

[Macman45]

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?

 

[simsaladimbamba]

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.

 

[Macman45]

Thanks For The Link

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.

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?

 

[cerb]

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.

 

[Coerce]

Why not get the Crucial or Corsair kits further down, only £9 more.
Both are good brands.

Or try http://www.scan.co.uk

 

[Macman45]

Crucial

Why not get the Crucial or Corsair kits further down, only £9 more.
Both are good brands.

Or try http://www.scan.co.uk

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

 

[Badradio]

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.

 

[Macman45]

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!

 

[Macman45]

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?

 

[Macman45]

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!

 

[SaSaSushi]

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.

 

[Macman45]

Thanks For That

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.

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.

 

[Macman45]

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

----------

Many thanks, more umphh was required!

 

[SaSaSushi]

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.

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.

 

[Macman45]

I'm Looking Forward

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.

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.

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!

 

[Macman45]

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.....

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?

 

[Mikey86uk]

instead of making a new thread, i thought i would ask in here.

Which of these would best go with my 2011 iMac 27" which currently has the stock 4GB RAM?

http://www.overclockers.co.uk/searc...tm_source=newsletter20110928&utm_medium=email

Thanks

 

[simsaladimbamba]

instead of making a new thread, i thought i would ask in here.

Which of these would best go with my 2011 iMac 27" which currently has the stock 4GB RAM?

http://www.overclockers.co.uk/searc...tm_source=newsletter20110928&utm_medium=email

Thanks

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.

 

[Mikey86uk]

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.

my bad, sorry

does fitting your own RAM void your apple care?

 

[simsaladimbamba]

my bad, sorry

does fitting your own RAM void your apple care?

No, Apple even describes the procedure in the User Guide.