Ik heb dezelfde problemen als degene die hier beschreven worden. In het kort: freezes na het ontwaken uit slaap. Het gebeurt niet als dit heel kort is (open en dichtklappen) maar wel als de MB iets langer slaapt. Het betreft een 13" unibody late 2008 model waar ik 2x2GB OCZ geheugen in gezet heb.
Heb de uitleg van wat ik precies ervaar al op de mac forums gezet:
Last February I switched from windows to a brand new late 2008 aluminium macbook with a 2.4Ghz processor, 2GB memory and a 250GB hard disk. A week ago I upgraded my Macbook's memory from 2GB to 4GB with two 2GB ddr3 PC3 8500 modules from OCZ and I also replaced my hard disk with a 500GB model. Since then I'm experiencing what looks (to me) as freezes. This happens after I've put the macbook to sleep by closing the lid. When reopening the lid a couple of different scenario's can happen:
1: The system responds normally, the display illuminates immediately and I can resume using the macbook almost instantly, this is the way it was before the upgrade. No progress bars, dimmed screens, etc. I would just be able to almost instantly continue using the macbook.
2a: I'm hearing the cd-rom drive initialize, the harddisk spins up and the keyboard lighting turns on, also the sleep-light turns from blinking to off. Everything seems to be happening as should be except that the screen doesn't illuminate. The only way to get the macbook to respond is to press the on/off button for four seconds until it shuts down and then power it up again. After having powered the system up the display will turn gray, then show the desktop with a grayish hue over it and a progress bar. When the bar is full the desktop will show as it normally would look.
2b: The same as 2a except that the macbook would complete a full boot-cycle before showing the desktop, afterwards a window will tell me that Mac OS-X quit unexpectedly and ask me wether I want to send a report to Apple. In the report a kernel panic is mentioned.
2c: The same as 2a except that a hard reset using the on/off button is not necessary but the grey screen and loading bar will show some time after opening the lid.
Of course I'm suspecting the memory modules. I tried the following:
When using the Apple provided memory the problems disappear. (I also replaced my hard disk so this rules the hard disk out)
Using just one of the new memory modules results in the same type of behavior, except when the progress bar shows the process is completed quicker because of the lower amount of memory installed. The memory bank I install the single module to doesn't make a difference.
The memory is still my prime suspect of course, I've tested the memory using Rembler and this did not show any errors, also I used the mac hardware testing utility by pressing 'D' on boot and this program didn't show any errors either.
Below is the top part of the report that I'm about to send to apple after the last freeze:
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Interval Since Last Panic Report: 54952 sec
Panics Since Last Report: 1
Anonymous UUID: 13A9EE9A-F6AC-4220-9392-837FE8484037
Mon Jun 29 21:48:22 2009
panic(cpu 1 caller 0x001AB0FE): Kernel trap at 0x003927b1, type 6=invalid opcode, registers:
CR0: 0x8001003b, CR2: 0x2a277000, CR3: 0x01888000, CR4: 0x00000660
EAX: 0x00000000, EBX: 0x00000000, ECX: 0x04b87794, EDX: 0x00000000
CR2: 0x2a277000, EBP: 0x2a38ff68, ESI: 0x00002000, EDI: 0x00000000
EFL: 0x00010246, EIP: 0x003927b1, CS: 0x00000008, DS: 0x2a380010
Error code: 0x00000000
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x2a38fc98 : 0x12b4c6 (0x45ec20 0x2a38fccc 0x13355c 0x0)
0x2a38fce8 : 0x1ab0fe (0x468ecc 0x3927b1 0x6 0x4685f0)
0x2a38fdc8 : 0x1a1703 (0x2a38fde0 0x246 0x2a38ff68 0x3927b1)
0x2a38fdd8 : 0x3927b1 (0xe 0x5bd0048 0x2a380010 0x1d0010)
0x2a38ff68 : 0x392937 (0x0 0x2 0x436a8d4 0x136efd)
0x2a38ff88 : 0x38531d (0x0 0x2a38ffd4 0x1368b3 0x3851cc)
0x2a38ffc8 : 0x1a14ec (0x0 0x0 0x1a40b5 0x436a8b8)
Backtrace terminated-invalid frame pointer 0
BSD process name corresponding to current thread: SystemUIServer
Mac OS version:
9J61
Kernel version:
Darwin Kernel Version 9.7.0: Tue Mar 31 22:52:17 PDT 2009; root:xnu-1228.12.14~1/RELEASE_I386
System model name: MacBook5,1 (Mac-F42D89C8)
System uptime in nanoseconds: 391444500673
unloaded kexts:
com.apple.driver.InternalModemSupport 2.4.0 - last unloaded 96039826097
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I'm at my wits end as to what might be the problem, do you have any recommendations for further troubleshooting? Or is my memory definitely bad and should I return it to the shop?
En:
n the meantime I've been reading this topic:
http://discussions.apple....threadID=1757875&tstart=0
It looks like a lot of people posting in that topic experience the same type of difficulties I am... And it looks like the Nvidia chipset is just very picky when it comes to RAM.
Currently trying setting the maxmem to 3456MB in com.apple.boot.plist tip from that topic. This is not a permanent solution of course but it will at least give insight as to wether the problems lie with the RAM or something else.
I'll keep reporting here and would still very much like to hear other thoughts on mij difficulties with the RAM.
En:
Well, the trick with setting the maxmem to about 3.5GB didn't work for me. I've tried putting a new and an old module in, resulting in 3GB of total memory but this proved to get freezes as well...
The strange thing is that rembler nor the apple hardware test can't find any issues. I think I will be consulting the local macbook shop about this problem before returning the memory to the webshop I bought it at.
Judging to the lack of reply's no one has an idea with regard to what the problem might be?
Inmiddels heb ik contact met OCZ Europe, heb echter al een paar dagen niets meer gehoord dus ik moet maar weer eens aan de bel trekken denk ik
Hopelijk kan ik mijn setje ook inruilen voor wel werkend geheugen...
Gemberthee: water met een smaakje.
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Zit wat in, maar volgens mij is het geheugen niet specifiek bedoelt voor de user, harddisk en accu wel en daar zit dan zon ubersimpel klepje voor.
! Loop je gebruikers niet zo te pesten met die kleine schroefjes! 
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alleen hebben sommige afnemers zoals Kingston een betere kwaliteitscontrole. Het is vergelijkbaar met LEDs; de meesten komen van dezelfde Chinese fabriek, alleen de duurste zijn van de kern van de batch en de goedkope zijn van de rand van de batch, de misgieters zeg maar :strip_icc():strip_exif()/u/232495/South_Park_3.5.jpg?f=community)
Toen ik de plaat er weer op wou zetten wouden 2 van de 8 schroefjes er niet meer goed in. De plaat moet er echt EXACT recht op zitten. Gelukkig is alles uiteindelijk goed verlopen en heb ik nu 4GB DDR3 geheugen voor maar €61 
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