suggest get the asus p4v800d-x,pci-e & agp.have my 478 pin 3.4 northwood running @ 3.74 in one of these mobos,due to the overclock options in the bios,5,10,20,&30%,mine @ 10% with pc3500 ram,runs solid,for 34 quid am well pleased that my 478 pin is not redundant,as its pushing my new sapphire...