Hello, I've just brought;

ASRock 880GXH
AMD X4 635 CPU
4GB Mushkin (2x2gb) ddr3 1333 ram
OCZ 500w PSU

the problem is, it's all connected right, and the power comes on (fans go) ect

but I get error 13, which is "Early POST initialization of chipset registers."

does anyone know what that acctually means or can think of the problem? thanks