Tyan Tiger & non-MP Athlons

Luc Renambot renambot at cs.vu.nl
Tue Mar 5 07:36:47 PST 2002

Here's my experience:
In Amsterdam, we built a 9-node cluster with
dual-athlon (1500+ MP) on Tyan Thunder K7 boards.
In fact the machines were delivered with regular
athlon CPUs, and it worked fine. But when we tried to
upgrade the BIOS (to access new features), the
motherboard refused to boot in dual mode, only
in mono-proc. The latest BIOS checks if
the CPUs are MP... After that, the processors
were changed by our dealer.

renambot at cs.vu.nl 

> -----Original Message-----
> From: beowulf-admin at beowulf.org [mailto:beowulf-admin at beowulf.org]On
> Behalf Of Frank Joerdens
> Sent: Tuesday, March 05, 2002 3:53 PM
> To: beowulf at beowulf.org
> Subject: Tyan Tiger & non-MP Athlons
> We're planning a little 8-CPU cluster and are considering dual Athlons.
> All the info I've been able to collect about non-MP Athlons in Dual
> Mainboards (the Tyan Tiger, specifically) points to this: 
> It works, but AMD doesn't guarantee that it works. The performance with
> Dual Thunderbirds is not so impressive, but basically there is no
> difference between XPs and MPs (except that the latter come with a 'Dual
> Certified' guarantee).
> Now the dealer I just called tells me that this is not true with the
> newer XPs that come with a 'green substrate', although it used to be
> true for older XPs that come with a 'brown substrate'. This sounds
> pretty silly to me, and I don't believe him. Then again maybe I missed
> some recent thread about it . . . what's your experience with non-MP
> Athlons in dual setups? Prices here (Berlin, Germany) are 205 Euro for
> and 1800 XP and 315 Euro for an 1800 MP.
> Regards, Frank
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