Hi all!
I have a 775dual-vsta mobo myself and Anandtech forum have helped me alot. Please remember, i am not trying to be rude to anyone at this topic about 775dual-vsta mobo and other similar mobos, but i think many have gone blind trying to push this mobo to its limits and forgotten the fundamentals about this card. I am not an expert in anyway, but as I understand it 775dual-vsta is a combined mobo with an All-in-one chipset. And if i got all right All-in-one chipsets have a hell of a lot of work to do like running the AGP bus, network , sound, disk etc. and therefore more sensitive than other chipsets.
Many people overclock their mobos and use more and more powerful components like graphic cards. For example; many people get issues when they swap the old grafic card for Radeon X1950. I have read on some forum that disabeling things in Bios, like onboard sound etc., solves most problems. The comments afterwards are usually that there is a conflict between the grafic card and something on the mobo. But almost no one reflect over that the conflict between the components might be that the poor little All-in-one chipset have got "overworked" or overheated. So disabeling something in Bios, like the onboard sound, make the work for the All-in-one chipset much easier. On one forum I read that some people had issues playing WoW with new (more powerful) grafic cards, but when they opened the chassi and played with the chassi opened it went well. I think this might be a typical "overworked" or overheated All-in-one chipset.
What i am trying to say is that to many people are overclocking the system and therefore focusing on the FSB/DRAM-ratio to get their system stable. Then they add or change to some more powerful components like a new grafic card and get issues on a previous well working mobo. Why? Coz u get a "overworked" or overheated All-in-one chipset thats makes the system unstable.
Sorry for all the writing and i hope i haven't bored you out. But as I wrote in the beginning, when you get problems with 775dual-vsta or any other mobo, try to look at the fundamentals of the mobo.