Hi all, any advice would be great, Im looking for anyone that may have got the above combo to work together. My system DP55WB Intel mobo (with latest bios upgraded), Intel I5, 8 Gig Ram DDR3 1333mhz, HD4650 ATI graphics, Win7 64bit service pack1, 600W OCZ modstream Pro PSU. System works perfectly with current graphics card, but simply will not post with a GTX 550 TI, (I want to upgrade grahics), I have now tried 2 of them 1 Asus and 1 KFA2, neither will post and just create 2 beeps from the pc on start up screen stays black. If anyone has this combination of mobo and graphics card working please advise which mobo bios you have. Many thanks for any help I get.