[comp.sys.ibm.pc.hardware] RAMs for 386 system

tinyguy@quiche.cs.mcgill.ca (Yeo-Hoon BAE) (09/20/90)

Hi, could anyone suggest what speed ram chips should I be using for 
20MHz 386 system??? I think it's not a cached, so I assume I need a
reasonably fast, perhaps 70 or 80ns chips.... It takes ZIPS.
Thanks in advance.

-TG

reisert@ricks.enet.dec.com (Jim Reisert) (09/20/90)

The SIMMS in my Northgate 386/20 are of the 80 nS variety.

jim

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poffen@sj.ate.slb.com (Russell Poffenberger) (09/21/90)

In article <4033@quiche.cs.mcgill.ca> tinyguy@quiche.cs.mcgill.ca (Yeo-Hoon BAE) writes:
>Hi, could anyone suggest what speed ram chips should I be using for 
>20MHz 386 system??? I think it's not a cached, so I assume I need a
>reasonably fast, perhaps 70 or 80ns chips.... It takes ZIPS.
>Thanks in advance.
>
>-TG


How many wait states does the system provide? Does it use interleaved memory
access? The right answer depends on a lot of factors. 80ns will most surely be
good enough. 100ns will probably work, especially if there are 1 or more wait
states and/or it uses interleaved memory.

Russ Poffenberger               DOMAIN: poffen@sj.ate.slb.com
Schlumberger Technologies       UUCP:   {uunet,decwrl,amdahl}!sjsca4!poffen
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