Sunny wrote:
>
>
> Wes Groleau wrote:
>
>> It has four SIMM slots: two empty, two Sun items labeled 128Meg
>>
>> I have two 64 Meg SIMMs from an iMac with the same shape and pin layout.
>> They will fit physically, but will they work?
>
> Possibly, but since I don't know what RAM an iMac uses I'm not sure -
> but I have successfully used compatible PeeCee RAM in an Ultra 10. You
> need 3.3V EDO DIMMs

I _think_ that's what they are. These are 64Meggers.
I replaced them in the Mac with 128 Meggers that I bought
at Staples (where Macs cannot be found).

> First double-check physical compatibility by lining up a Sun DIMM and an
> iMac DIMM edge-to-edge - you may find they are identical _except_ that
> one of the two notches between pins is misaligned by about 1mm. This
> slight physical incompatibility is easy to miss.

No, every 'pin', notch, hole is identical. But I just noticed the
Sun DIMMs have nine chips each side while the others have eight on
one side. Does the Ultra require a parity bit?

> If you're certain of physical compatibility, obtain details of the iMac
> DIMMs (numbers on any stickers, and numbers on the chips themselves),
> and post and/or google them.

Sticker:
GMM2649233ETG
-7J 0122L
PC-100-322-620

Came from Crucial but doesn't say that on the DIMM.

--
Wes Groleau

"There ain't nothin' in this world that's worth being a snot over."
-- Larry Wall