New PC Problem Help

[NuTTiE]

Hi i recently built my friend a pc. But when im trying to install the operating system it locks up and sometimes i get the blue screen of death which says

STOP: C0000221 Unkown hard error \systemroot\system32\ntdll

which i have no idea what it means.

Sometimes when i boot the computer i hear 1 long beep and 3 short beeps.

The os im trying to install is xp pro corp.

Things i have tried are putting my dvdrom into the computer and still it don't install.

Any help would be much appreciated

 

[NuTTiE]

nah there aint bad sectors.

I disabled udma on my dvdrom and hardrive and that seemed to have worked.

When windows is copyying the files over i get another blue screen of death this time with different error.

i had

IRQ NOT LESS OR EQUAL

AND

PAGE FAULT IN NONPAGED AREA

its just one thing after another. Maybe i have faulty hardware

Can anyone Help!!!!!!!!!