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Article #78

Cache speed for 50 MHz 486DX?

#78
From: Bengt Ask
Date: Wed, 04 Nov 1992 16:25
21 lines
1354 bytes
I just got my 50 MHz 486DX motherboard with 256 kB of 
external cache, UMC chipset and AMI BIOS. The motherboard
is made in Taiwan by a company called Gigabyte. I believe
these boards have been used by the US company VCOM in their
machines.

I noticed that the cache SRAM (made by Micron Tech.) is rated
at 25 ns. Is that really OK? Shouldn't they have been rated
at 1/50MHz=20 ns or faster, or am I missing something here?

Also, the manual talks about DATA and TAG SRAM. Althogh I have
some ideas about what TAG is, could anyone please explain
it to me?

I'm asking about this since my new motherboard has a problem when
I power on the system, and it tends to reboot at the slightest
touch of the PC case.

Please email any replies.

Bengt Ask, Lund Institute of Technology, Lund, Sweden
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Message-ID: <1992Nov4.162521.10965@lth.se>
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Newsgroups: comp.sys.intel
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From: f89ba@efd.lth.se (Bengt Ask)
Subject: Cache speed for 50 MHz 486DX?
Message-ID: <1992Nov4.162521.10965@lth.se>
Sender: newsuser@lth.se (LTH network news server)
Organization: Lund Institute of Technology, Sweden
Date: Wed, 4 Nov 1992 16:25:21 GMT
Lines: 21