mmm but you could do that with any mainboard manufacturer
Example MSI cpu test failed

If your unlucky enough to get a cpu test failed then 99% its gonna be just that=cpu failure.
I've always bought asus boards and yet to be let down personally i wouldn't bank on the prob being m/board related especially if its only BF2 giving you the bsod,its more than likely memory or driver conflict related...Tronne are you using a matched memory pair?what brand?

Have you tryed un/reinstalling BF2+1.02 with latest mobo/sound/and grfx drivers?
Also try this Driver cleaner to rid your system of all traces of nv drivers(graphics and mobo)then install the latest 77.72's graphic drivers and go here for the latest nforce 2 mobo,sound,etc drivers.

If all else fails take the easy root(for me at least)and format your hdd with a fresh install of xp+the latest system drivers