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Article #19282

Re: Test for Cache memory on ZEOS 486DX266 needed

#19282
From: J056600
Date: Thu, 07 Jan 1993 23:07
40 lines
2269 bytes
In <C0I5Mo.5BB@unx.sas.com>:

>I recently purchased a ZEOS 486DX2-66 system and also got the
>256K cache upgrade option.  The system shipped with the cache
>but I am unable to determine if the system is acknowledging
>it's presence.

>Does anyone know of a way to test for additional cache memory?

I'd assume that some utilities which display system configuration might tell
you this.  On my machine (486SX/33 with AMI bios), I get a message at boot-up
which says "128 KB Cache found" or something like that.  I think that would
indicate that it's working.  I don't know about your system, though.

>I have pulled the cache and have not experienced any degrading
>effects on performance.  I will readily admit that I am not sure
>if my "test" results are accurate.

If you pulled the cache, I assume that it must be present and isn't vaporware.
So if it is in fact not recognized, there are hardware problems.

>I have heard some rumblings from ZEOS tech support folks that this
>item does not work and I am wondering if I have purchased vaporware...

What were the rumblings and where did you hear them?  If ZEOS tech support
knowingly sold you cache which wouldn't work, they're being sleazy.  In some
apps, it's hard to notice the difference that cache provides.

>PS:  There is no configuration for the cache in the BIOS setup, nor
>does it show up at boot time.

Really?  What BIOS are you using?  Does the BIOS even have a setting for the
*internal* cache (which a DX2/66, like all Intel 486s, has 8K of)?  Is this
machine using Fred's Fly By Night BIOS (tm)?


Tim Irvin
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From: J056600@LMSC5.IS.LMSC.LOCKHEED.COM
Subject: Re: Test for Cache memory on ZEOS 486DX266 needed
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Date: Thu, 07 Jan 93 15:07:15 PST
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