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List:       linux-smp
Subject:    Re: Tyan motherboards
From:       Martin Imrisek <modulus () interlog ! com>
Date:       1998-10-24 12:36:46
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It was Galvantech I believe.
The best way to check if it is the cache is to turn it off and see if you
get the lockups and/or crashes, I think you may have already done that. 
Calling Tyan and your dealer will probably be more effective than
e-mailing them.  I would hound your dealer until they respond and deal
with it.
Good Luck.

martin

--------------------------------------------------------------
Martin Imrisek       " I get knocked down, but I get up again
imrisek@interlog.com     You're never going to keep me down. "
     
              

On Fri, 23 Oct 1998, Mike Roda wrote:

> Are you sure it's a "G"?  I just looked at my motherboard and the SRAM
> chips, which I assume are the cache memory, look like they're made by
> UMC.  
> 
> In any case, I'm not sure what I'm going to do now, about a week ago I
> sent an email to the place I bought the motherboard and I sent another
> email to Tyan and never got a reply from either.  This will definitely
> be the last Tyan motherboard I ever buy.
> 
> Mike
> 
> Martin Imrisek wrote:
> > 
> > Hi Mike:
> > 
> > There was a known problem last year with Tomcat IV having a bad batch of
> > cache
> > memory.  Tyan was slow to aknowledge it initially, but they did in the
> > end. Check the name of
> > the maker of the cache chips.  If it is G* (starts with G) then it is a
> > bad batch.  Unfortunately I don't have any more details.  The best course
> > of action is to let your dealer know of this and to order a board without
> > cache made by the suspect manufacturer.  Tyan seems to have better support
> > for distributors than for individual customers.
> > 
> > I had mine replaced and I've not had any problems since.
> > The only thing is that since a few kernel version back I've had a rather
> > nasty clock drift.  Is anyone working on that?
> > 
> > --------------------------------------------------------------
> > Martin Imrisek       " I get knocked down, but I get up again
> > imrisek@interlog.com     You're never going to keep me down. "
> > 
> > 
> > 
> > On Thu, 15 Oct 1998, Mike Roda wrote:
> > 
> > > Does anybody else think Tyan motherboards are crap?  I'm on my third 1564D, the
> > > first two were bad right out of the box, now this one is going bad after only
> > > using it for a few months.  On all 3 of the boards the cache memory went bad.
> > > I don't know what to do because the place I bought it doesn't carry any other
> > > types of dual pentium style boards and I don't really want another one of these
> > > lousy boards.  Does anybody know where I can buy a better dual motherboard that
> > > will accept dual pentium (133) CPUs?
> > >
> > > I can just disable the L2 cache in the bios but I'm seeing a 45% decrease in
> > > performance when I do so.
> > >
> > > (Please respond directly back to me, I'm not getting messages from the mailing
> > > list yet, thanks)
> > >
> > >   Mike
> > >
> 

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