Motherboard random halt upon boot with LED lights

My motherboard sometimes halts upon boot-up with varying LEDs on... (P8P67 Pro Rev 1.01)

The motherboard has LED lights for GPU/CPU/RAM/Boot Devices and sometimes when I Power on PC it halts with one of these LEDs staying on.

Could my board be faulty? Does anyone know of a way of testing this with some software instead of having to take out bits etc?

cheers
 
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