X-Apparently-From: <pmoran22 AT yahoo DOT com>
Message-ID: <015c01c08d2a$7239fe40$683c6420@dbcooper>
From: "Patrick Moran" <pmoran22 AT yahoo DOT com>
To: <opendos AT delorie DOT com>
References: <041001c08a70$009726d0$91a63bc6 AT dbcooper> <3A772E56 DOT 2D89D1B5 AT cornell DOT edu>
Subject: Re: Computer Upgrade
Date: Fri, 2 Feb 2001 07:54:16 -0700
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Reply-To: opendos AT delorie DOT com


----- Original Message -----
From: "Alan S." <as173 AT cornell DOT edu>
To: <opendos AT delorie DOT com>
Sent: Tuesday, January 30, 2001 2:12 PM
Subject: Re: Computer Upgrade


> I have two platforms running these Tyan Trinity 1590S 100AT MBs, both
> loaded with add-on cards.  This MB is a really excellent choice
because
> of the slot configuration:  1xAGP, 3xPCI, 1xPCI/ISAshared, 3xISA, but
> it's very easy to overload and OVERHEAT the PC as a consequence;  I've
> added 5 extra chassis, slot and drive cooler fans to one very full PC!

This is true for any system that has a lot of cards installed and/or
harddrives.

>
> For those who really want to make "full use" of UDMA66 drives, or use
> more than four EIDE devices, I have had good experiences using the
> "Promise Ultra ATA/66" add-on controller cards with this MB.
>
> One word of caution:  There are two different versions of this MB:
> The final version will run AMD-K6-2, et al, CPUs up to 550MHz, but the
> earlier version is limited to 450MHZ [maybe 500MHZ, I forget].  This
> limitation CAN NOT be fixed with a BIOS upgrade.  Distinguishing marks
> are silk screened onto the MB; check the Tyan website.

Yes this is true. The older boards would only go to 450Mhz (i.e. 4.5X
multiplier) However, if I remember correctly they do have a 5x multiplie
setting that is undocumented in their manual. This is not really a
problem if someone wishes to use a K6-3 processor.Also another note
about CPUs and this MB, the CPU voltage range is 2.0 to 3.3V. You cannot
use some of the older AMD K6-2 450MHz 3.45V CPUs. Yhere may be other
speed CPUs that use 3.45V as well. They will not run at 3.3V. You rarely
run across these, but if you are bidding on used ones at an auction you
should contact the seller if they did not list the voltage. The K6-3
450MHz CPU I am getting is for a notebook and is 2.0V. This will work in
this MB. Since it was designed for a notebook, it probably does not
really need a fan, but I am installing one anyway as I have many drives
and cards in the system and it will keep the CPU cooler.

Pat


> > To see the specs on this great board, check out this URL:
> > http://www.tyan.com/products/html/trinity100at.html


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