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> We ordered 4 256MB SDRAM DIMMs for our G3. When we put them in, they
> were working fine. Our G4 was having problems. The 512 SDRAM DIMM in it
> was working in OS 9, but not in OS X. So I ordered a new 512 SDRAM DIMM
> and put in it, along with 2 of the 256MB DIMMs from the G3 and then put
> the old 512MB DIMM in the G3 with the other 2 256MB DIMMs, not knowing
> that the G3 only supports up to 256 MB DIMMs. Well, now, all the DIMMs
> are showing up as 128MB, even after I took out the 512MB DIMM. I tried
> resetting the NVRAM and even took out the battery from the motherboard,
> hoping that that would fix it, but it's still only seeing the 256 MB
> DIMMs as 128 MB DIMMs. Any suggestions?
I don't know if this will help in your situation or not, but there's a
utility out there called DIMM First Aid, you might try it and see. Only
runs in OS9, as I recall.
I'll see if I can find it. I saw on Apple.com about MacTest Pro, but
it's only offered as a part of the Appple diagnostic kit which is
$900! I don't think so!
I ran that program and it saw the 256 DIMMs as 128 and said the
checksums were incorrect, but it didn't fix anything.
> fudo wrote:
> > I don't know if this will help in your situation or not, but there's
> > a utility out there called DIMM First Aid, you might try it and see.
> > Only runs in OS9, as I recall.
> I ran that program and it saw the 256 DIMMs as 128 and said the
> checksums were incorrect, but it didn't fix anything.
So, what model G3 is this? B&W or beige?
You need double sided DIMMS. Do yours have chips only on one side?