computer 0x0000007b error

[outsidesyrups]

I recently assembled a new computer. Its stats:

Abit KN8
Athalon64 3000
centon ddr400 512 ram
hitachi deskstar 160 g
radeon x700 pci express

at initial boot, computer operates normally.
However, installing windows took several times, due to errors. After several tries, i was able to load in server 2003 eXPerience.

However, during loading ow windows, stop error on blue screen appears: 0x0000007b, (0xF885EA98, 0xC0000034, 0x00000000, 0x00000000)

I also tried using a old hd with win2000, error appeared saying Incompatible_boot_divice.

MS website said driver were the problem, but how am i supposed to load drivers when windows won't boot?

Thank you