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Article #180

Re: 60ns and 70ns SIMMS in the same computer with Warp?

#180
From: John Brush
Date: Thu, 18 Apr 1996 00:00
35 lines
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In <4l144f$75r@panix2.panix.com>, kenny@panix.com (Kenneth Crudup) writes:
>In article <4kuqs2$g76@usenet2.interramp.com>,
>ir003870@interramp.com (Billy Ko) says:
>
>>Excerpt from Inside OS/2 Warp, page 804:
>
>>Some basic things to check for when a customer is experiencing trap errors of 
>>any kind include:
>
>>1. All memory SIMMs must be the same size and speed...
>>2. All SIMMs should be from the same manufacturer.
>>3. If the customer has mixed memory SIMMs, it may be possible to get them to 
>>work, although this would be a configuration unsupported by OS/2
>
>Unbelievable!
>
>>If mixed memory SIMMs are being used, the customer must place the SLOWER 
>>speed memory in the first or lowest address sockets.  This approach 
>>occasionally works because OS/2 tests memory in the lower address space to 
>>determine its speed, then runs ALL memory at that speed
>
>This is utter garbage!
>
>Who wrote this book?
>
>>... because OS/2 tests memory in the lower address space to determine its
>>speed, then runs ALL memory at that speed
>
>Unbelieveable! OS/2 *cannot* "determine the speed of a bank of memory".
>Period.
>

I won't be quite as emphatic, but this does sound a bit dubious.

John
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From: John Brush@aros.net
Subject: Re: 60ns and 70ns SIMMS in the same computer with Warp?
Date: 1996/04/18
Message-ID: <4l6kb3$p7n@news.aros.net>
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references: <4kecjv$fsl@geraldo.cc.utexas.edu> <4kk4tf$ksq@news.aros.net> <4kq5f0$ehl@usenet6.interramp.com> <4kuqs2$g76@usenet2.interramp.com> <4l144f$75r@panix2.panix.com>
organization: ArosNet Inc.
reply-to: jbrush@aros.net
newsgroups: comp.os.os2.setup.misc,comp.os.os2.bugs,bit.listserv.os2-l,alt.org.team-os2