Question : Hp Pavilion laptop cycles on/off repeatedly

Hi,
Have an HP Pavilion laptop dv9700.  When the power button is depressed, the power will cycle on/off repeatedly - on for 3 sec. off for 5 sec.

The only way to power down the laptop is to unplug the power cord and then remove the battery.

When the laptop is in the "power cycle" I will hear one "clunk" coming from the vicinity of the DVD player although it could be from the cooling fan.

There is absolutely no display, no beep codes, nothing loading from bios or HD etc. I can open the DVD drive and insert a CD/DVD and the drive will wind up but nothing will happen.

The exact same thing will occur with the RAM alternated or removed completely. It will also occur with the HD removed. It also occurs with the RAM & the HD removed at the same time.

Any suggestions would be greatly appreciated.

Thanks,
Joe

Answer : Hp Pavilion laptop cycles on/off repeatedly

Most likely faulty motherboard which is very common for these models with nVidia graphics.