On 7 Jun 99, at 14:39, Jeffrey Delzer wrote:

> I recently replaced a motherboard for a client, and now when it boots it
> shows the wrong CPU speed. I double checked the jumpers against the
> charts in the mobo manual, and all appear to be set correctly. (66 MHz
> FSB, 3.5x multiplier)
>
> During POST, the BIOS reports a 240 MHz CPU. Is that 'normal' for this
> combination? Or have I missed a setting or jumper somewhere?
>
> FIC PA-2013 mobo
> AMD K6/233 CPU

  Two possibilities spring to mind:

1.  (Less likely)
   I've worked with a few boards on which matching the jumpers in the manual
to the board was extremely confusing.  What would 4.0 x 60MHz look like?
DOes it resemble 3.5 x 66 (rotated, inverted, or other simple relationship)?

2.  (More likely)
   The BIOS may be figuring the speed by timing some loop of instructions.
Depending on the precise instructions used, it's possible that this measured
difference could simply reflect the performance of the AMD CPU versus the
Intel part that the code was no doubt designed for.


David G

         The PCBUILD web site always needs good submissions.  If
          you would like to contribute to the website, send any
               hardware tech tips or hardware reviews to:
                           [log in to unmask]