Re: RAM speed, External Cache & i486-DX266 CPU

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#689

From: Joe Heugly
Date: Thu, 21 Mar 1996 00:00

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In article <826745441snz@longley.demon.co.uk>, David@longley.demon.co.uk 
says...
>
>I have a curious problem which I need a definitive technical solution to.
>
>Motherboard:  VL (one slot, est ISA)
>CPU        :  i486-66DX2
>Cache      :  256K
>RAM        :  4 x 80ns + 4 x 100ns parity
>BIOS       :  AMIBIOS 1991
>
>Problem..
>
>Unzipping files produces CRC errors on a number of the contents. The file
>checks out OK on other systems, and the problem disappears when I disable
>both EXTERNAL CACHE and TURBO CACHE in the BIOS.
>
>There are a few other odd problems which seem to have gone with the cache
>disabled.
>
>Anyone got an explantion for certain? (my own conjectures are easily read
>from the above!).
>-- 
>David Longley
I had a similiar "unzip/crc error" problem.  I finally solved it by 
increasing the wait states for Cache Burst Read.
Go in to your setup, Do A Print Screen or Write Down All Setings, then find 
the section where you can adjust the wait states for your cache.  Increase 
each one individually, saving and testing after each change until you find 
the solution.
This will cause you system to run a little slower, but error free.

Joe

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From: joeh@CNETech.com (Joe Heugly)
Subject: Re: RAM speed, External Cache & i486-DX266 CPU
Date: 1996/03/21
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