so your board is a msi kt3 ultra MS-6380 socket A using DDR 266, a athlon xp at 1400mhz and a nvidia vanta/tnt2
that mainboard, does it have a fan in the chipset?
the mainboard is 10 or 11 years old, is that old the psu? have you changed it?
if the mainboard is in good shape, i could be good if you can find a newer video card, in this case we recommend a nvidia 6200 that should be compatible with that mainboard
is good hardware but really old, not sure what to say here