*BSD News Article 72633


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From: David Albany <hanz@mail.dbeach.com>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: HELP: Can I mix memory speeds
Date: Wed, 03 Jul 1996 01:53:27 -0700
Organization: V-Soccer
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Message-ID: <31DA3507.1C77@mail.dbeach.com>
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To: sparky@enterprise.net

sparky@enterprise.net wrote:
> 
> I currently have the following setup....
> 
> Tyan Titan III Motherboard
> P120
> 16 Mb 60ns Ram
> 
> ...and I run Os/2 warp, Linux (slakware 2.3), Freebsd v2.1 and WIn '95 (Yes I know
> I'm greedy ;-)). I want to upgrade to 32Mb and have a good offer on some RAM
> but its 60ns EDO-RAM.
> Will this cause problems for me? Has anyone else mixed EDO & non-EDO RAM with
> any of these OS's?? I know on Os/2 2.1 there was the possibility of a TRAP 0E error
> is this the same on Warp ??
> 
> Any known problems on the hardware?? I'm about to E-mail Tyan directly, but I
> would still like to hear from the people who count.....the users.
> 
> I would appreciate e-mails as well as posting so that I get any responses ASAP.
> 
> Thanks in advance
> 
> SteveHad a web server (FreeBSD 2.1R) with 64 MB of RAM. When we added another 64 MB it kept 
on crashing every time any body tried to run a command (Any). The new ram was of the 
same speed. The problem was solved by replacing the new RAM with another 64 MB that was 
from the same manufacturer and had the same speed and so on.
This led us to conclude that even a littel difference in speed (as is the case between 
different manufacurers) would lead to problems. 
I just thought I let you know this.  
PS: If our conclusions are wrong please let us know for we would love to know what 
happened to that server. It was either this or a group of eviel sprits lived in it for 
the time it had that particular RAM in it.