[andrewas]

The same as any other BIOS flash - not as much as you might hope. You might see a small speed increase if the old BIOS is a particularly early version, and there will be a page or two of bugfixes, most of which you wont care about since the drivers already compensate for them. And finaly, if you are having hardware incompatability the BIOS flash might fix things.

Of course, as with any other BIOS, if the power fluctuates during the flash, you are in deep trouble. Only home fix on a Motherboard is to get an identical BIOS chip, boot with it, swap it *while the computer is running* and try the flash again. And it would be an even more stupid idea on a video BIOS, since its harder to get at. Or you could spend £30 on a new BIOS from the manufacturer.

If your going to do it, and I personaly would skip it unless there was a specific problem, then make sure the power is steady, and make sure you follow the instructions to the letter.