The monitor dont get a signal until windows boots up.

[KenRoger]

I just got two new 6950 that I am running in crossfire. But for some reason they wont send a signal to my monitor until windows is finished booting up, and I am at the login screen. If I try to just press and hold delete on startup so that I know that it enters the BIOS it just wont give me a picture, and the monitor turns itself into "rest" mode, and then turns itself on again. And it just keeps doing that. The monitor is connected with DVI

If I just let it boot to windows everything is ok.

Anyone here have had any experience with something similar ?

My rig is as follows:
BENQ 24" 2400W
ASUS M4A89GTD PRO/USB3, Socket-AM3
Amd Phenom II X4 965
8 GB of Ram
Two spanking new Sapphire Radeon HD 6950 2GB GDDR5
New Chieftec Nitro 88+ 1000w PSU

Thanks in advance for any help.

 

[Subdue]

You already found the solution? I got the exact same problem!