Setup errors are usually RAM corruptions. You cannot power up to get past POST or into the OS?
If you can get into past the POST then.. either get
UBCD above which has Memtest86 on it and run that too. Or..
*Download
Memtest86,
burn the downloaded ISO image file onto a CD using software such as Nero and the reboot your system with the CD inside.
*When it restarts, on the first black screen (POST) press F8 (some may be F4) and it'll give you a
boot from menu.
*Choose boot from CD-ROM as the first bootable drive and hit enter.
*Then Memtest should run and display its screen. Give it 3 or so hours and let it run. See if any and how many errors show up.
Do the same again using
Windows Memory Diagnostic Tool
If it gives errors, take out all but one RAM stick and run the test again in 2 different slots to check if its a slot that maybe faulty. Test each RAM stick separately then.
This is testing you RAM, the first hardware to show corruptions as such and halt OS installations.