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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!psinntp!pool!ujlh
- From: ujlh@pool.info.sunyit.edu (James Henrickson)
- Subject: Re: Info on 1 meg simms.
- Message-ID: <1992Aug26.043529.28715@pool.info.sunyit.edu>
- Keywords: memory, simms
- Organization: State University of New York -- Institute of Technology
- References: <BtHp63.6qE@mentor.cc.purdue.edu>
- Distribution: usa
- Date: Wed, 26 Aug 1992 04:35:29 GMT
- Lines: 40
-
- In article <BtHp63.6qE@mentor.cc.purdue.edu> kingd@sage.cc.purdue.edu (Daniel King) writes:
- >
- >I am trying to upgrade my 386SX-16 from 2 to 4 megs. I have come across 4 -
- > 1meg simms, but I don't know how to tell what speed they are (60,70,80ns).
- > My computer's manual says I need at least 70ns, can someone tell me what
- > speed I have (and if they are compatible or not) based on the following
- > serial numbers?
- >
- > Texas Instruments TM256HU8A-80L 9131
- > Okidata MSC23108-80DS2 1X3006
-
- I have a question about 1 MB SIMMs, also. I have a 386SX-25 that currently
- has (2) 1 MB, 70 ns 3-chip SIMMs. The documentation for the motherboard
- says it requires 80 ns page mode SIMMs. I know there was a discussion
- on 3-chip SIMMs a while back but I didn't pay attention to it because
- I didn't think it would apply to me. (If only I knew!)
-
- I know you shouldn't add SIMMs that are slower than the ones already on a
- board, but what if the ones on the board are faster than what is needed?
-
- Can I mix and match 3-chip and 9-chip SIMMs?
-
- What is this "page mode", as it applies to SIMMs? I learned about the
- various memory strategies in my computer architecture class a few years
- ago but when I added memory to my other system, I just asked for 1 MB X 9,
- 80 ns SIMMs and didn't have any problems.
-
- I have a choice between buying 80 ns 9-chip SIMMs locally or buying the
- same type SIMMs by mail order from the place that sold me the motherboard.
- If it is possible, I'd prefer to buy local in case I get some bad SIMMs.
- Please mail responses, as my computer is useless until I get the memory.
-
- Thanks in advance.
-
-
- --
- Jim H.
- *
- * James L. Henrickson
- * ujlh@sunyit.edu "Some day I might have a real .signature!"
-