64Mb Simms on a CyberstormPPC ? Also single Simm and 50ns mem..

[Jose]

Hi. I have a 50ns 64Mb Simm lying around. A CyberstormPPC will arrive soon and I'd like to know if I should take the opportunity and buy a similar 64Mb 50ns Simm. Two questions:
- Will the 64Mb Simm be recognized as a 32 Simm? I remember someone posting his 64mb modules were recognized as 16MB :-o
- Since the Cyberstorm only takes advantage of 60ns Ram at the best (if I recall correctly) this 50ns stuff would only be usefull if I decide to overclock it. Any experience on this? Maybe I should just ditch it out and get 4 standard 32MB Simms ? :-?

Thx

[Jose]

@Brian
Are you sure one can use 64 Mb and they'd get reconnized, that would be very cool :-)

"delicate.."
Well, the bad problem I've heard about them is heat :-o Come on it's not like the cards are gonna self destruct if one does a little overclocking with the right colling :-D

[Jose]

"Would the CSPPC manual be wrong in stating that 50ns is supported?"

So the manual actually states that?!

"I read in related a posting that overclocked systems needed slower memory (70ns) to compensate in order to work?"

Was that because of the memory notwithstanding the faster busclock, or a problem with the Cyberstorm? If the first one maybe the more rare 50ns Simms would solve the problem?

[Jose]

Forgot to ask, would a single Simm work or does it require two to be present minimum? Like that I could test the one I have, and pray that it would be recognized as two 32 ones on bank 1 and 2 (AFAIK they should be in pairs right?).

[Jose]

@Brain
Ok. So if someone is using that configuration (2 64Mb Simms) on a CyberstomrPPC and has a stable system PLEASE let us know :-o  :-)

P.S.
I remember trying a bunch of different Simms (around 10!!) some PC store borrowed to me on a Blizzard 1240 and only about 2 worked!

[Jose]

This reminds me of something.. Were there 40ns 72 pin Simms that worked on Amiga accelerators? ...35ns ones?  8-)

[Jose]

@Hyperspeed
That's a pretty cool chart, thx.

"Any trouble then hold ESC on bootup to switch on/off memory pre-charge..."

Out of curiosity, any idea of what that does?