On Thu, May 05, 2005 at 06:56:34PM +0200, Jonathan Groll wrote:

<snip>

> Yes, 16 X 1MB SIMMs in total. I have some 30 pin SIMMs and will increase 
> the memory now that I know what the problem was, or ask a friend to 
> build me a trimmed kernel. Thanks for the explanation.
>
> Does anyone know what is the maximum amount of RAM the SS1+ can take?
> The Sun Hardware Reference FAQ says:
>
> SPARCstation 1+ (4/65)
> ....
> Memory:         64M (40M?) physical with synchronous parity,
> 			512M/process virtual; 64K write-through cache,
> 			direct-mapped, virtually indexed, virtually
> 			tagged, 16-byte lines; 50ns cycle
>
> Is the max then 40M or 64M?

You can physically put in up to 64M, and the OS can see it, but the
system will be *slower* than if you only put in 40M, due to the caching.

An SS2 can handle 64M onboard and up to 128M with an SBUS adapter card.

-- 
Michael Parson
mparson@bl.org