White flashing dash/blank bios

TommyGiga

Honorable
Jan 7, 2014
1
0
10,510
Hi,

I've just recently reinstalled windows 7 and encountered a few problems:

1. When loading windows with my GPU installed, I get a flashing white dash in the top left corner. I think this is to do with windows. When the graphics card is not in the machine and running on integrated graphics (Intel HD 4000 I think) windows boots fine.

2. Also with the GPU installed when trying to access the BIOS I just get a blank black screen, and much the same to the previous point, when running on the integrated graphics the BIOS is able to be accessed just fine!

This is a homebuilt system and prior to the reinstall of windows it was working just fine...

Any Ideas?

Computer specs:
intel 3570k (stock clocks)
Nvidia GTX 770
16Gb of Gskill ram (at 1333hz)
Gigabyte Z77-D3H
Coolermaster 700w Silent Pro

Thanks for any help in advance :)