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Date:      Mon, 9 Dec 1996 14:42:18 +1030 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        cau@cc.gatech.edu (Carlos Ugarte)
Cc:        kuku@gilberto.physik.rwth-aachen.de, freebsd-hackers@freefall.freebsd.org
Subject:   Re: Amd (K5) 586 /133
Message-ID:  <199612090412.OAA06894@genesis.atrad.adelaide.edu.au>
In-Reply-To: <199612080358.WAA27217@oscar.cc.gatech.edu> from Carlos Ugarte at "Dec 7, 96 10:58:52 pm"

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Carlos Ugarte stands accused of saying:
> 
> > I bought an A-Star (i430VX) mainboard and put in an Amd (K5) 133 MHz CPU.
> > dmesg tells me 100.23 MHz. Who's cheating?

You probably have the motherboard jumpers set wrong.

> No one, really.  I'm pretty sure AMD uses a similar "rating"
> scale to Cyrix - the particular chip you have is called something
> like a K5-PR133, where PR stands for Pentium Rating (or something
> similar).  It actually runs at 100 MHz, but its performance was
> found to be "equivalent" to a Pentium 133 MHz.

I don't think so.  This is a 2.2 system with an AMD K5-PR100 :

Calibrating clock(s) relative to mc146818A clock ... i586 clock: 100252689 Hz, i8254 clock: 1193485 Hz
CPU: AMD Unknown (100.23-MHz 586-class CPU)
  Origin = "AuthenticAMD"  Id = 0x501

> How does it run?  Any problems?

These guys seem to run pretty well; certainly they're P100-feel. 8)

> Carlos A. Ugarte                                cau@cc.gatech.edu

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