The question:
The 8 meg simms that the 3000/300X uses are industry standard 72pin 36bit
wide simms. I know that , because I am using them in a couple of alphas
now. However, when I put in the equivalent 32meg simms the systems see
them as only being 8meg !!! Does the group have any words of wisdom?
If someone has a set of 32meg simms that are known to work in the 3000/300X
systems, please tell me about them... Manufacturer/#s on the chips/etc.
The only respondent was Greg Merrell <greg_at_netuser.com>
Greg was able to confirm that industry std 32M simms do work and offered some
good advice. Unfortunately they were all things that I had already verified
as non-issues.
I found the solution in an unusual place, a former AST test engineer who
happens to be my brother and from the crashing of bunches of Suns at a client
site.
It seems that the 60ns 32M (8x36) simms are often unable to actually run at
their rated speed. In fact AST had found that 60ns simms were so slow that the
sizing routines were not able to see them as being 32M. At the same time, I was
spending the weekend analysing system panics on 5 different Sparc5s and finding
that all of the failures were due to 32M 60ns simms (6x33 - Sun is weird).
Solution,,, I took the 60ns simms back to the vendor, ate the 10% restocking
fee and from a different vendor obtained some 70ns simms, which work fine.
The vendor is at www.memoryplus.com and the simms were $217 each.
Charlie
Received on Thu May 08 1997 - 04:39:36 NZST