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

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#692

From: futility
Date: Thu, 14 Mar 1996 00:00

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David Longley <David@longley.demon.co.uk> wrote:

>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.

	I had something similar when I got a 486dx40 + vesa 
	motherboard. I changed the default bios settings to ones
	specified in the manual for my processor speed..they
	were wait states and that sort of thing..but I got CRC errors
	on zips like you. I changed the bios settings back to default
	and they went away. Odd.

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Message-ID: <31489ac7.94776@news.demon.co.uk>

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References: <826745441snz@longley.demon.co.uk>

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From: futility@evap.demon.co.uk (futility)
Subject: Re: RAM speed, External Cache & i486-DX266 CPU
Date: 1996/03/14
Message-ID: <31489ac7.94776@news.demon.co.uk>
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references: <826745441snz@longley.demon.co.uk>
newsgroups: comp.sys.ibm.pc.hardware.chips,comp.periphs,comp.sys.intel,demon.tech.pc

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