Rampage 2 Extreme

Associate
Joined
6 May 2011
Posts
190
Hi
This is a problem I have been having for a while:

I have an i7 950 clocked at 4.4 and swapped the gfx from a 6950 to 6990, under water. Since changing GPU the PC will only boot up with a manual restart i.e. I turn pc on and then press the reset button on the mobo. Unless I do this, the pc boots up, but there is no display. (Deffo not a monitor issue as I have several)
If I return the overclock to stock settings vis CMOS clear, it boots fine.
Any suggetions?
Someone suggested enabling the onboard vga, restarting then disabling, but I can't seem to see how to enable this- can't find it in BIOS or in the handbook

Can anyone help

Cheers
 
What power supply are you using. Is it big enough to run a 6990.

If you could list the rest of your system someone may be able to help.
 
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