MSI 645 Ultra PCI AGP question

[TheCollective]

Does anyone here have any experience with the 645 ultra and how it handles PCI and AGP dividers? There is no adjustment in the BIOS and I was wondering if it is fixed, or if automatic adjustments are made based on FSB selection.

I talked to a tech from their company and he said that bumping the FSB up from 100 to 133 would have no effect on the PCI or AGP bus because I was only adjusting the CPU frequency. From what I know from overclocking in the past is that FSB ALWAYS affects the PCI and AGP bus in direct relation to the adjustment.

Any experiences or thoughts?

 

[Tom]

I'm using an Ultra 645. The Fuzzy Logic utility that comes with it reports 62.5 agp, 31.3 pci at my current 125 fsb speed. I'm sure that at least up to 133 FSb both would be fine. I wouldn't be surprised if they are kept close to spec even above 133 fsb.

I do have a couple of problems with this board...
1. Can only increase vcore to 1.6 with a Northwood and based on the readings in the bios and the Fuzzy Logic utility setting it to 1.6 is really only 1.55v.
2. CPU temps are probably not reported right. In the bios the cpu temp is always 30C and in the utility it's always 49C, neither ever changes and I don't think either is an actual reading.

Except for those things the board runs great and is certainly inexpensive!