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- Path: sparky!uunet!mcsun!uknet!reading!brunel!concurrent.co.uk!nnw
- From: nnw@concurrent.co.uk (Neil Watson)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: 3 chip vs 9 chip SIMMS
- Summary: Problem with 3 chip 1Mb x 9 upgrade
- Keywords: SIMMS
- Message-ID: <1992Nov19.110550.14222@concurrent.co.uk>
- Date: 19 Nov 92 11:05:50 GMT
- Sender: usenet@concurrent.co.uk (NetNews System)
- Organization: Concurrent Computer Corporation, Slough, England
- Lines: 35
- Nntp-Posting-Host: bugs.concurrent.co.uk
-
- I remember there being a thread that was running a while ago about the
- virtues of 9 chip verses 3 chip 1Mb x 9 SIMMS. At the time I wasn't
- interested...!
-
- I now have purchased a new 4Mb of memory for my (Companion - an
- AMI/ETEQ chipset) 386DX-40, and they don't work. I either get parity
- errors or just plain "won't boot" with the new memory installed.
- The problem seems to worsen as the machine warms up.
-
- According to the documentation the motherboard will accept 256k, 1M or
- 4M SIMMS. I thought the fact that it took the latter implied that the
- new 3 chip 1Mb SIMMS would be OK....
-
- I recall seeing a very informative posting on how the different refresh
- cycles worked for 3 chip vs 9 chip SIMMS, but didn't save it (fool!).
- However I'm not sure this is the problem - I may have a genuinely faulty
- module (as it fails more often as it warms up?).
-
- Any clues as to what's wrong very much appreciated. 9 chip SIMMS are
- getting very hard to find in the UK! (though at least the prices haven't
- gone up much for what we CAN get - or should that be "yet")
-
- The memory vendor has suggested "turn off the parity checking", but as
- it's there for a purpose, I'm unwilling to do that. I think that that
- will just mean that I don't get errors detected!
-
- Thanks in advance
- Neil
-
-
- --
- Neil Watson, ESDG Product Support, Concurrent Computer Corp
- G0BLD 227 Bath Road, Slough, Berks, SL1 4AX, England
- Phone: (+44) 753 513360 FAX: (+44) 753 513303
- (nnw@slough.ccur.com, nnw@concurrent.co.uk or 100021,3041 @ Compuserve)
-