I've got a freezer with 1GB Apple + 2GB OWC RAM. I haven't tried removing the RAM yet, but am considering it... Would suck to have to trade in performance for reliability.
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iMac Software update 1.3
- Thread starter Tom Sawyer
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Well that doesn't leave much in the way of potential third party software causes.
I'm intrigued by the results of Wakerider's testing with his RAM replacement. I am using a 1GB stick I purchased separately with no issues but it is perfectly matched and very good quality make.
Have you tried replacing your 2G stick with the stick that came with the machine? If you haven't I think that would be worth a try.
So you are likely down to the normal issue running on Apple RAM alone.
Wish I knew why mine only has graphics glitches with iStat installed, but it did that even before I upgraded the memory.
Try it, I can't get the computer to freeze with apple memory. no matter how hard I try.
That doesn't sound good at all. The last time I recall "blocks" on the screen, lines and artifacting was when I had a bad logic board on my 20" Core Duo. I was told it may have actually just been a case of the GPU having worked slightly loose from the logic board due to excessive heat.
I have third party memory and have never experienced a freeze.
Slot One- Apple 1GB
Slot Two- Patriot 2GB (this isnt even high quality RAM, so i'm a little surprised, isnt crucial better?)
2.4 24" 320GB stock model
ATI Radeon HD 2600 Pro:
Chipset Model: ATI,RadeonHD2600
Type: Display
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: ATI (0x1002)
Device ID: 0x9583
Revision ID: 0x0000
ROM Revision: 113-B2250F-212
EFI Driver Version: 01.00.212
Slot One- Apple 1GB
Slot Two- Patriot 2GB (this isnt even high quality RAM, so i'm a little surprised, isnt crucial better?)
2.4 24" 320GB stock model
ATI Radeon HD 2600 Pro:
Chipset Model: ATI,RadeonHD2600
Type: Display
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: ATI (0x1002)
Device ID: 0x9583
Revision ID: 0x0000
ROM Revision: 113-B2250F-212
EFI Driver Version: 01.00.212
Same here. 2.8GHz iMac w/4GB OWC ram. No problems before or after Leopard. I've also tried to create a freeze using the methods others have suggested. Installed the update and still, no issues.
For the record, this IS my second iMac. The first one I bought had the dreaded dead pixel issues.
I'm help in any way possible as well (comparisons, etc.)
I hope I don't jinx myself, but I didn't have any freezes/artifacts before the update, and none after the update either. Running a 24" 2.8Ghz.
Edit: Using 1 GB Apple RAM, 2 GB Corsair RAM
Nope, wasn't HW -- it was software, since it would occur after login only. and not with a clean user.
Edit: most likely a conflict with iStat and an early carbon app, neither of which I'm using right now.
My 2.4Ghz 24" iMac is now completely unusable. I have Leopard installed on it, and it freezes immediately when the computer desktop appears. It tries to render the stacks on my dock and that is now enough to kill it.
I have Tiger w/o any iMac Software Updates on an external firewire drive, and that is what I am using to send this. This installation continues to be rock solid.
I have Tiger w/o any iMac Software Updates on an external firewire drive, and that is what I am using to send this. This installation continues to be rock solid.
I do... I have two 2GB corsair sticks. I have let memtest86+ and memtest run for hours while at work, on several occasions, and neither tester has ever found any errors with the RAM.
http://matt.ucc.asn.au/memtest/
http://www.memtestosx.org/
I doubt that anyone with 4GB doesn't have aftermarket RAM because of Apple's insane price, but I still find it hard to believe that the RAM is causing all the issues. There are posts above showing people with Aftermarket RAM without the Lock-ups.
The faulty-RAM theory doesn't make sense to me here - why would Tiger work without any issues for djc6, but Leopard fail? If it was faulty RAM, surely this would affect both OSs?
Exactly. I still believe that the Graphic Card is faulty, and the updates corrupted it even further. I really think it's nothing to do with the RAM.
Still can't understand why wakerider017's iMac got fixed by removing the RAM though.
But by the same token - if the graphics card is faulty, how does one explain how Leopard is a complete disaster on my iMac 24" (constant lock-ups), but Windows XP works just fine? Surely a faulty graphics card would take both down?
Yeah, my machine with the logic board problem wouldn't even make it through the boot process most times. If it did get to the login screen it almost always had the lines and artifacts there as well and if it didn't they appeared as soon as I hit the login button.
I'm using iStat here as well. I just updated to the new version released yesterday.
My vote is on...
My money is on the graphics card, maybe the drivers?
From my experience, I had artifacts like white dots stuck on screen, fuzzy small colour pixels and then white pixel streaks going across the screen. It did this under Tiger before I installed Leopard and it is still doing it under Leopard with after market memory added.
My vote is on crappy drivers, perhaps one reason Apple should have stayed with Nvidia? However, having said this either way one would expect Apple to sort it out in time... last thing they want is bad press and/or recalls.
Steken
My money is on the graphics card, maybe the drivers?
From my experience, I had artifacts like white dots stuck on screen, fuzzy small colour pixels and then white pixel streaks going across the screen. It did this under Tiger before I installed Leopard and it is still doing it under Leopard with after market memory added.
My vote is on crappy drivers, perhaps one reason Apple should have stayed with Nvidia? However, having said this either way one would expect Apple to sort it out in time... last thing they want is bad press and/or recalls.
Steken