Originally posted by SoulEdge
Interesting, I didn't know the vagp was NB voltage. I wonder if that's what's causing some of my errors as I've had it at default this whole time but I haven't felt the need to bump it up as I haven't experienced any of the windows slowdown at 300fsb w/ my radeon like some people are reporting. Is it unusual for a p4 to be benchable at a given speed (in my case 3.6) but to drop out of prime w/ errors after serveral hours at 300 mhz less (3.3) ? pc ice is going to be getting me a good 2.4 so hopefully I can drop that in soon. I'll see how that does in this board and if things are still flaky, I'll just get a p4c. I REALLY want to like this board, got all the right features and performance at a nice price... we'll see how things go this week.
That is a chipset issue, and happens on every single 865/875 board over 300 fsb. It is caused when the agp/pci lock fails above 300 fsb. Just oc to your max fsb in bios, then use setfsb or clockgen. They don't change the agp/pci frequency when you raise the fsb, so that is how you oc over 300fsb. When you raise the nb voltage the nb temps will increase. At the very least you should lap the stock hsf, apply as5 (as3 for those of you poor suckers that don't have as3 yet ), and add a fan to it.

I am not so sure about this mobo myself. I was thinking of picking up a p4c800-e from newegg. Whichever one I like I will sell the other, or eat the restocking fee.