你昰否用Dell E520 PC?
Motherboard 0WG864昰有PCI-Ex16 display card介面slot,昰可用HD 4670,但火牛只有305 Watt昰不足的!( HD 4670要求400Watt)
400 Watt or greater power supply (550 Watt for ATI CrossFireX™ technology in dual mode) is recommended http://www.sapphiretech.com/presentation/product/?psn=000101&pid=181
你用的是BTX Power Supply