Well... I got my RAM and it sorta worked, but not completely. I took the 16mb module out (I know I got that right as you'll see), and put in the two 64s. I started up my Mac and found that it thought I had 96mb instead of the desired 160mb. So I figured one of my new modules was dead and I was sad. But I didn't just leave it at that. I took one of the 64s out (of the second slot, the one the 16 was in before) and rebooted, thinking I might find the third slot or third module dead. This dropped my memory to 64mb. This seemed really weird to me, because that'd mean the second module had only been contributing 32mb. Then I took the 32mb module out of the single bank slot, leaving only the 64 in the third slot, and rebooted. This left me with 32mb of memory. Now I'm convinced that my supposed 64mb modules are only giving me 32mb of memory. This isn't the kind of thing I thought was possible: memory not working completely, except if I put it in the wrong slot. And I'm confident that I didn't, especially since I got 32mb from each dual-bank slot with a 64mb module. It'd be a really big coincidence, to have exactly half of the chips damaged on each one, so I'm not assuming that so far.
Any ideas on what could possibly be happening? How to fix it? Note that this RAM is made by IBM and wasn't sold with any claims of being made for a Mac. However, I made sure it was 3.3v unbuffered non-parity 60ns EDO DIMM, which were all the requirements I could find. It's single-sided, with chips that are larger on the face, but stick out much less than the older chips. The module stands a little taller in the slot too (yes it's actually taller, I did push it in far enough). Hopefully the guy didn't send me 32mb modules, but they have 64mb IBM stickers on them, with the right part number, so I doubt it. I don't want to buy new RAM at the higher prices of the stuff that claims to work in Macs, but I might have to. I'd probably try to sell this RAM then. Should give 32mb (64 if you're lucky maybe) to a Starmax owner. ;) Eric Anderson > The smaller RAM module will probably have fewer little black "chips" on it- > or they will be smaller if there's an equal #. Try that. Make sure you put > the 32 mb module in the "single bank" dimm slot ( the bottom one in the > tower, or the one farthest from the power supply in the desktop) as that > slot wont fully run the 64mb's- only 32 mb. > This is what I would do: Put them in and leave the case cover off (even > though the manual says not to do this) and start the computer and click > under the apple menu on "about this computer" [you could also use Apple > System Profiler, but this is easier]. It should show you with "Built-in > Memory -160 mb" (which would be 64+64+32). If it shows 128mb, you've got > them in the wrong slots (getting 64+32+32), or if it shows 144mb that would > mean you've still got the 16 mb module in (64+64+16). Any less than that and > you've got them in the wrong slots AND have a 16mb in, or have bad memory. > > NickUtah -- StarMax is sponsored by <http://lowendmac.com/> and... / Buy books, CDs, videos, and more from Amazon.com \ / <http://www.amazon.com/exec/obidos/redirect-home/lowendmac> \ Support Low End Mac <http://lowendmac.com/lists/support.html> StarMax list info: <http://lowendmac.com/lists/starmax.html> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/starmax%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
