How to accurately determine speed of PCI/AGP bus?

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Banned
Mar 27, 2002
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I need to determine the real speed at which my PCI/AGP bus is running. There are a few things that are stopping me from using the usual methods, however.

1) I used a hacked bios on my motherboard the GA-7VAXP, so that I could change the PCI/AGP divider manually. The options it gives are PLL/16, PLL/20, PLL/24, PLL/32, PLL/40. I'm not quite sure what these mean, but I've been told that 16 is 1/4, 20 is 1/5, 24 is 1/6 and so on. The bios doesn't, however, update its display of the PCI/AGP speed according to the settings of the custom divider, so I can't see from here.

2) I tried using Sisoft Sandra and it appears that it only calculates the PCI clock according to the FSB. When I change the AGP/PCI divider settings, Sandra doesn't report any change.

3) I used PC Wizard 2003, and the PCI clock reading on it always stayed at 33mhz (1/4), even if I change the divider or the FSB, or both.

So, any good ways other than those? Also, could someone please verify for me what PLL/16, PLL/20, PLL/24, PLL/32, PLL/40 mean?
 

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Banned
Mar 27, 2002
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Thanks for the replies... now can someone tell me what PLL/16, PLL/20, etc mean? Or is it true that 16 is 1/4, 20 is 1/5, 24 is 1/6 and so on?

EDIT: Where can I download CPU FSB?