Hi, these are my pc list amd phenom 2 x4 965 be ga 790xta-ud4 mb xfx hd 5770 ati corsair 2x2g ddr3 1600 model cmx4gx3m2a1600c9 atec 900 case and antec ea 650w hp dvd burner 1270i wd6401aals caviar black hdd My problem is when first time turn on my pc there is no beep and monitor is black, i've try with new cpu & mb (same model) video card (diamon hd 5770) psu ( same model ) and folow step by step on New build won't boot check list but still no beep. Any help would be greatly appreciated. Sorry for my writing. Im not good in English. Thanks