Display unable to Detect signal on CPU

Cromagnon Boy

Reputable
Sep 18, 2015
3
0
4,510
My PC [HP Pavilion] is running for almost 8 years. My CPU is running but the Display cannot detect signal. I am using VGA with onboard video card only. There is no beeping or any weird sound from the CPU. No go when I tried clear CMOS. No go when I tried cleaning the RAM. I ensure the VGA cable are properly attached. Do i need to replace CMOS battery?
 

Cromagnon Boy

Reputable
Sep 18, 2015
3
0
4,510


Thank you, the monitor seems to work fine with other CPU, I might have bad MOBO or Processor i don't know..