Help! R9 270X won't work!

[kittylovermybut]

I have an Intel 55SB mobo and I can't get my R9 270X to work on it! I don't know why. To make it even stranger, the BIOS does show up with the new card in, but when I go to hit a button for boot menu, it just beeps. Any ideas on what to do?

 

[HeavenKidz]

what your pc specs?

 

[kittylovermybut]

i5 661, Intel 55SB motherboard, 8gb corsair ram, 120gb ssd.

 

[HeavenKidz]

after beep sound it just show the blank screen????try for clean cmos