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Article View: comp.os.os2.setup.misc
Article #185

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

#185
From: Billy Ko
Date: Wed, 17 Apr 1996 00:00
74 lines
3769 bytes
In message <4l144f$75r@panix2.panix.com> - kenny@panix.com (Kenneth Crudup) wri
tes:
:>
:>In article <4kuqs2$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.
:>
:>	-Kenny
:>
:>-- 
:>Kenneth R. Crudup, Unix & OS/2 Software Consultant, Scott County Consulting
:>kenny@panix.com		CI$: 75032,3044	  +1 617 524 5929/4949 Home/Office
:>16 Plainfield St, Boston, MA 02130-3633	  +1 617 983 9410      Fax
:>OS/2 box: pkenny.tiac.net (when I'm online) Get Warp-ed! OS/2 3.0 is here NOW!


How about David P. Both, lead OS/2 support person for IBM in Raleigh, NC (as 
of the writing of the book) since 1984, and has been with IBM since 1974, and 
is a Certified OS/2 Engineer FOUNDING MENBER.

Bill Stevens is an Accredited and IBM Certified OS/2 Engineer, authoring and 
conducting seminars on Supporting and T-shooting OS/2 internationally.

I would think that one of the original OS/2 Engineers and someone whose life 
revolves around troubleshooting OS/2 worldwide would know what they are 
talking about.

And, Page 175 of the User's Guide to OS/2 Warp (the one that came with Warp) 
states:

A TRAP0002 error is a hrdware error and is usually directly related to 
memory.  Mismatched memory can often cause these kinds of errors.  Your 
computer might have a variety of SIMMs that WERE PRODUCED BY DIFFERENT 
MANUFACTURERS OR THAT OPERATE AT DIFFERENT SPEEDS.

One thing that I haven't asked is... where did you learn YOUR facts?  I am 
showing ample evidence to support my claims, along with some creditable 
people who back up my claims.

All you do is argue and refute my claims, but do nothing to support yours.  
I am not stiff and unbendable.  If you can show me SOMEthing to support your 
claims, I will consider it, and if your arguement is sound, I am perfectly 
willing to accept it.

Time to put your money where your mouth is.

Bill
Team OS/2
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From: ir003870@interramp.com (Billy Ko)
Subject: Re: 60ns and 70ns SIMMS in the same computer with Warp?
Date: 1996/04/17
Message-ID: <4l3to0$d44@usenet2.interramp.com>
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