[WackoX]

Try to boot the PC with as much removed as possible, so:

- Remove all hard drives.
- Remove all optical drivers (cd/dvd).
- Remove all internal cable's to front USB.
- Remove all external cable's to all USB ports.
- Remove all PCI cards.

Etc..

If that all doesn't work, and since you've already tried another monitor or videocard, you've got 99% chance it's the Motherboard.

Quote:

Originally Posted by kikito maybe drivers will be needed for screen..

There are no ''screen drivers'', and you don't need drivers for the BIOS to post.