I want upgrade my video card with a new one.My question is,my ASRock ConroeXfire-esata2 support nvidia series Gt 4xx and/or 5xx? And about Radeon graphic cards,this motherboard support radeon hd 4870x2 , hd 5xxx (I think yes with bios 2.20) and the new series hd 6xxx? I had already installed bios 2.20,I had to know if I can use these cards and,if yes, I run to buy one of it.Thanks for all time you dedicated to help me.

p.s Sorry for my bad English

CPU:Intel Core 2 Duo E6300
RAM:2x1Gb TwinMos
VGA:ATi Radeon X1300
S.O:Windows Xp Sp3 32Bit