gigabyte r9 270x wont bootup with intel q45 dp45sg

[Raiad Anwaar]

I have dp45sg intel mobo
Q45 chipset
Chieftec 650w psu
2x2 gb ddr3 ram
Q6600 stock clocks!
Recently bought gigabyte r9 270x 4gb
Mein pc no even goes to bios when i plug out the gpu it gives me the beeps that show it has gone past bios !
But with gpu in no display and no nothing not even the mouse gives its led ! But the fans and every thing are spinning.
Tried another gpu with no six pin that was also gigabyte and it also didnt worked ! Then tried xfx gts 250 with 2 6 pin and it worked !
Another hd 6750 sapphire with 1 6 pin and it also worked !
I dun know is this with the gigabyte or what?

 

[alexoiu]

The board's BIOS might not support the card. Try updating it, if newer version available.

 

[Raiad Anwaar]

Sorry accidently picked the solution !
And i am using win 8.1 but the windows installer ! Is not working hvnt tried usb update !
Ill try on a new windows