I've got an older iMac G4 800Mhz running Leopard. It has 512Mb PC133 of memory on a single DIMM (internal not for users slot). I picked up a Samsung 512Mb PC133 SO-DIMM for expansion, which is a double-sided 64Mbit x 64 module, which matches Apple's specs for the machine.
The Mac, of course, won't give me the start-up chime (indicating a hardware failure) on boot, and won't address the memory. However, it tests out fine on the DIMM tester.
I've cleared the PRAM settings via the boot terminal, as well as the NVRAM. No luck.
Any ideas? Something flaky on the module? I got it for $16 shipped from StarMicro, and it'll cost me that much at least to swap it with them. *sigh*
Oh, the expansion is a must, by the way. Photoshop CS4 limps through 18Mpx RAW files at 512Mb, and if this is going to work I need to have a minimum of 1Gb.
LOL! I checked Crucial and Kingston first, and they want more for a memory module than I paid for the Mac!
I am thinking I got a bad module, waiting for StarMicro to get back to me. I used essentially the same module from the same supplier for a client's machine a couple years ago, with no issues. At least this is for my machine.
Well, turns out the mainboard I have is SUPER PICKY on what it likes. Despite the fact that this memory matches the specs, it isn't "Mac PPC" compatible, but I can't figure out why!
I'm ordering another certified part on Friday.
Anybody need a 512Mb PC133 SO-DIMM?
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