ASRock Extreme 3 AM3+ No POST, No beeps

Hi, my pc was working fine until I awoke this morning to it totally frozen and unresponsive with no other option I held down the power button and powered down but now when i power it up It does nothing apart from light up and spin fans and the only way it will power off again is to hold down the power button. Ive tried resetting the Bios by removing the Cmos battery for over 30 secs and also tried with the jumper too but still no change, no start up screen and no beeps even with just my cpu connected I still don't get any beeps, I have a speaker connected to my mobo and it has beeped many times before when hardware was missing etc so i'm at a loss as to what to try next, Any help is much appreciated and thanks in advance

The most common cause of this kind of problem is the power supply, thats where I would start looking. If you have a spare PSU see if it will power up the system.

it' just a nightmare one second it's posting next it's doing nothing, the furthest i got with it was it gettting to the initial ASRock start up screen but then it's stuck on that screen and hasnt detected the keyboard so can't get into bios or boot congfig then next second it's not even posting or beeping with out any changes made, driving me crazy, the problem is so temperamental that it's seems impossible to find the cause unless it's the mobo, im sat here at the moment just using that whole rig to power my gpu that is in my back up pre-built pc as that doesn't have the power for it