Mcp6p-m2 Ver 6.0

Hello everyone,please can you help me,I have had the above mobo running fine up until the screen was intermittently going off during running,I thought it might be my Pci-e Graphic card but once removed it made no difference.
Now i do like to fault find issues but this one has me stump t,I have the mobo out of the case with no usb or HDD plugged in, just K,V,M.
I have reset the bios and all i get when powered up is the initial screen showing memory size HDD connection (none) and the option to enter set up (del) but when i hit del the whole screen disappears and that's as far as i can go.
So i am not sure if the bios has gone or the on board GPU, i suspect the bios
Please Please someone help me.
Many thanks for your time in this matter.