Bench testing new MOBO with chassis speaker + new TX650 PSU (voltages check OK) + new i5-655 with Akasa HCU + single 2 Gb DIMM + ATI HD5770 GPU with VGA attached. All fans function OK. MOBO powers up and proceeds with testing -> RAM POST LED and CPU POST LEDs flash as expected. MOBO VGA POST LED stays on indicating GPU failure(presumably?). Repeat exercise after removing GPU - and reach the same visual VGA failure cue (as would be expected). No beep codes on either occasion. Why? Presumably the MOBO is faulty? Help would be appreciated.