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To: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com>
cc: hardware@freebsd.org
Subject: Re: Asus PCI/I-P55SP4 motherboard 
In-reply-to: Your message of "Thu, 26 Oct 95 06:20:35 PDT."
             <199510261320.GAA04509@GndRsh.aac.dev.com> 
From: David Greenman <davidg@Root.COM>
Reply-To: davidg@Root.COM
Date: Thu, 26 Oct 1995 16:08:22 -0700
Sender: owner-hardware@freebsd.org
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>>    I'd like to hear from anyone with any experiance with this motherboard. I'm
>> considering using it in wcarchive, and I'd like to know about performance and
>> reliability.
>
>It has run make world's with a 2940, a few card compatibility tests etc,
>looks to be okay.  It is benchmarking slower than the PCI/I-P55TP4XE, but
>I suspect that is because the book says it will run the 100Mhz chip with
>70nS memory, which means they stuffed a wait state in it.  I need to get
>the Sis data books so I can tweak the BIOS values and know exactly what
>it is actually doing as there are about 12 memory timing parameters.

   Can you be more precise about how much slower it is? Are we talking 2-3%,
or are we talking 10-15+% slower?

>Oh, and that board supports up to 200MHz chips per the 1.2 Errata sheet
>stuck in my manual, though ASUS is not stuffing the VRM socket in the
>board which means you can only go to 150Mhz (All chips faster than 150Mhz
>use a 2.9V VRM power source).

   Hmmm...their Web page says it supports 167Mhz...

-DG