PC is not mine, it's my mother's. Hmm, both boards are DFI, both have issues... The currently used mobo boots into Win2K and Win98 fine, but boots only one of about 10 times into WinXP, the other times it freezes on the logo screen. Once it boots, it seems to work fine. (My mother uses Win98, thus avoiding the WinXP issue.) There is also a problem with the ATA HDDs DMA (random, seems to work for long periods fine) and also problem with built-in LAN (so using PCI LAN card). Maybe I should avoid DFI as a mobo brand. My own PC current mobo is Elitegroup (not the best of brands, I know...).