CPU Speed Setting

shaun · Posted: Wed Feb 25, 2004 5:38 am Post subject: CPU Speed Setting

I have a PC Partner motherboard with a VIA Apollo Pro133 Chipset, the BIOS is AWARD v4.51PG.
I used to have a Celeron 500 CPU but I recently managed to get hold of a working PIII 667 CPU from another old PC.

The CPU works in my PC but I have noticed no real improvement in speed compared to the PC that it came out of, where is was most definitely faster.

I have 512Mb of SDRAM. (1 x 256Mb PC133 & 1 x 256Mb PC100) - Will this influence anything? The manual mentions that mixed RAM can be used, and it recognizes the full amount.

In the BIOS, there is a CPU speed Setting, that has the following options:
Auto Detect DIMM/PCI CLK - Enabled.
Spread Spectrum - 0.25%.
CPU Host/PCI Clock - Default.

Also, in the motherboard manual, there are jumper settings that can be adjusted:

System Bus Freq & Ratio of Processor Core to System Bus Freq.

Is there any changes I should make to these to enable the processor to run at it's correct speed?

Thanks,
Shaun.

Denniss · Posted: Wed Feb 25, 2004 10:31 pm Post subject:

Celeron 500 uses a 66Mhz FSB and a P3-667 a 133MHz FSB .

To run the new CPu with full MHz you need to use 133MHz FSB but your PC-100 may not work with this setting .
And your Board has to support 133MHz FSB

P.S. : Disable Spread Spectrum
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