[SOLVED] System is not booting(black screeen)

[Rohitdev7736]

Iam using an Asus P8 z77m motherboard with an Intel Pentium Dual core processor (g2010) for over three years and then for some couple of days the system was left unused .Then on a random day when i opened the system the OEM logo just appears and when the bootlogo starts appearing,the system will restart and hence this loop continues..but after some couple of loops ,the system somehow manages to bootup and stay.And again the computer was left unused for somedays and when I turn on the cpu,nothing appears on the screen but cpu lights up and all fans will spin,and after 4 or 5 sec,the system will suddenly power off and then starts again when the fans berely stops spinning and again this cintinues as a loop.I have tried everything including minimal startup and usb biosflashback,but no use.Please help me...

 

[Calvin7]

Try borrowing another power supply. OEM manufacturers often only offer a one year warranty and use cheap power supplies that don't last.

 

[Rohitdev7736]

Try borrowing another power supply. OEM manufacturers often only offer a one year warranty and use cheap power supplies that don't last.

I have tried with two others including a coolermaster one..still same result

 

[winks42]

Reset CMOS and i suspect that the battery Has gone bad. To reset CMOS just take the silver circle battery out of the motherboard for 30-60 seconds and put it back in.