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- From: syny@crux3.cit.cornell.edu (R Craig Stevenson)
- Subject: Re: 3-chip vs 9-chip SIMMs?
- Message-ID: <syny.724717707@crux1.cit.cornell.edu>
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- Organization: Cornell Information Technologies
- References: <Bz9M37.I40@inews.Intel.COM> <28552@oasys.dt.navy.mil> <1gm7hbINNk3v@agate.berkeley.edu> <1992Dec17.112737.2243@global.hacktic.nl>
- Date: 18 Dec 92 22:28:27 GMT
- Lines: 21
-
- In comp.sys.ibm.pc.hardware you write:
-
- > Not on all computers! The problem is that the 3 chip SIMMs have a
- > refresh cycle that differs from the 9 chip SIMMs. Older motherboards
- > can run into problems when they can't refresh the 3 chip SIMMs
- > properly. Newer motherboards don't have this problem, as most of them
- > support but the 9 chip and 3 chip versions.
-
- A slightly different but related question:
-
- Are there differences in refresh rates between 80ns and 70ns (both
- 9 chip) SIMMS? If I have an older motherboard which is only rated for
- 80ns SIMMS (i.e. the chips listed in the manual as "certified" are all
- 80 or 100ns chips), is there any problem using faster (60 or 70ns)
- chips instead?
-
- And if the faster chips will work, can anyone tell me if using 70ns
- will allow me to run my machine (386-33dx, OPTI) with 0 wait state
- rather then the 1 wait state it currently requires?
-
- -- Craig
-