Subject: Re: PC164 jumpter settings: 533Mhz CPU
To: Jochen Kunz <jkunz@unixag-kl.fh-kl.de>
From: Bryan P <u11@terran.org>
List: port-alpha
Date: 08/08/2003 09:13:37
On the distinguished day of Aug 8, Jochen Kunz wrote:

> On Thu, Aug 07, 2003 at 09:10:56PM -0700, Bryan P wrote:
>
> > I just purchased a 533Mhz CPU (or so I was told...) that I'm trying to
> > upgrade my 500Mhz system with.  Can anyone tell me the jumper esttings
> > I need in order to make it work at this speed?  Just dropping the new
> > proc in the old board still shows it running at 500Mhz.
>
> AFAIK the PC164 doesn't support 533 MHz, only 500 MHz. I have a PC164
> with 533 MHZ CPU too and got it only to 500MHz.
> Note that the CPU clock depends on the oscillator, not the jumpers.
> The oscillator * 10 is the CPU clock. The jumpers are only for dividing
> the CPU clock down to the IO (PCI) clock. So running with 533 MHz in
> 500 MHz jumpering wil overclock your IO subsystem.

Just so I am confident I know what you mean, it is entirely safe to run the
533 chip in my PC164 jumpered (and running) at 500?

-bp
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