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Article #94

Re: AMD 486DX2 80MHz and Warp?

#94
From: Jens Ellerbrock
Date: Wed, 14 Dec 1994 21:12
33 lines
1898 bytes
Chris writes :

> >>I am curious.  Does the AMD486DX2-80 run externally at 40 MHz.?  If so
> >>what problems does this cause VLB or PCI, since I believe they are
> >>speced at a Max. of 33 Mhz.?
> >>
> >>- Pete
> >I have a VLB and it has a Max of 50Mhz!
> >
>
> The original specs on VLB was 40Mhz, I would check carefully that any
> cards I wanted to buy fit a >40Mhz speed.
>
> I do not know about PCI.

Well, yes the AMD486DX2-80 runs externally at 40 Mhz.
The specs for VLB I (not very common) were
       2 Slots at 33, 1 Slot at 40 and no slot at 50 Mhz
The specs for VLB II are
       3 Slots at 33, 2 Slots at 40 and 1 Slot at 50 Mhz

The PCI-Bus clock runs independent of the processor clock.

CU,
     Jens

--
Jens Ellerbrock   *   Holtenauer Str. 162   *   24105 Kiel   *   Germany
pluton@hades.deceiver.org  *  large email : u1221@marvin.bwl.uni-kiel.de
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References: <3c50fn$p8p@rapnet.sanders.lockheed.com>

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From: pluton@hades.deceiver.org (Jens Ellerbrock)
Newsgroups: comp.os.os2.setup,comp.os.os2.advocacy,bit.listserv.os2-l,
Subject: Re: AMD 486DX2 80MHz and Warp?
Message-ID: <5bpi_QMSSgB@hades.deceiver.org>
Date: 14 Dec 1994 22:12:00 +0100
References: <3c50fn$p8p@rapnet.sanders.lockheed.com>
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