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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!zeos!jre
- From: jre@zeos.com (Jim Erickson)
- Subject: Re: SIMM query
- Organization: Zeos International, Ltd
- Date: Mon, 11 Jan 1993 16:19:10 GMT
- Message-ID: <1993Jan11.161910.26095@zeos.com>
- References: <1ilj3pINNqub@jhunix.hcf.jhu.edu> <1993Jan11.085528.27858@nuscc.nus.sg>
- Lines: 53
-
- In article <1993Jan11.085528.27858@nuscc.nus.sg> isc10085@nusunix1.nus.sg (NG YENG YONG) writes:
- >Albert Chu (jacklord@jhunix.hcf.jhu.edu) wrote:
- >: Forgive this newbie question, but . . .
- >: I'm looking to increase the amount of RAM in my 386-33. It uses the standard
- >: 3 chip SIMMs, but I don't know the speed (ns) of the existing SIMMs. What
- >: possible problems could arise if the speeds don't match from one bank to
- >: another, and if it is not advisable to do this, is there anyway to determine
- >: the speed of the existing SIMMs (besides calling the vendor, since I have
- >: acquired my system second hand, and the previous owner has no clue)?
- >
- >Hello, you can find out the speed of the SIMMS from the chip itself. On
- >the first row of codes, the last 2 digits indicate the speed of the
- >chips. For Eg, 70 means 70 ns, 12 means 120 ns, 10 means 10 ns and so
- >on.
- >
-
-
- -10 would mean 100ns, -07 (or -7) would be 70ns, etc.
-
- >Different speeds of SIMMs on different banks should not pose any problem
- >to the system, but the RAM read/write wait state must be set to the
- >slower RAMs.
- >
-
- If the SIMMs are too slow for the machine they will: 1)work without any
- problems or 2)produce errors ranging from GPFs to parity errors either all of
- the time or intermitantly.
-
- ---JRE---
- >
- >
- >Best regards,
- >Steve
- >
- >
- >===========================================================================
- >= = =
- >= Ng Yeng Yong, Steve = Life is short, =
- >= ISC10085@NUSUNIX1.NUS.SG = Play Hard, =
- >= 1st Year, Computer Science = Work Hard, =
- >= Department of Information System = Have Fun. =
- >= and Computer Science (DISCS) = So, let our hair down =
- >= National University of Singapore (NUS) = and have lots of fun. =
- >= = =
- >===========================================================================
- >
-
-
- --
- Jim Erickson ZZZZ EEEE OO SSSS ZEOS International, Ltd.
- support@zeos.com INET Z E O O S Technical Support Dept.
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