Power button won't turn on. There is no light on the power button.

[ihx]

I first logged out of my computer and came back and I noticed an orange light on the power button. I shut it of and turn it back on about two times with the same results of an orange light. I then shut of the the extension that houses 10 plugs. When I turned on the extension I turned on the computer the power button didn't give off a blue light or orange light. The VGA cable, mouse, keyboard, Ethernet cable are all plugged in. I later removed all the connects to the computer gave it a minute and plugged it all back in. There is a solid green light on the back under the power cable. The fans turn on there is noise coming from inside the computer a soft humming and light fan from the back of the computer. But the power button will not turn on. The monitor light is orange and says "No Input signal Input 2,Go to Power Save." When I switch to input 1 it reads "Cable Disconnected Go to Power Save." What internal issue could this be?

[erico]

I would start with basic no-start troubleshooting.

Remove all but a single memory module. Put it in the slot closest to the CPU.  Power the system on. Any changes?

Try each module. Failed memory will cause bootup and display issues.

If that still does not give you any positive result it is time to disconnect the hard disk.  Power on afterwards  to check.

Are you using a video card or onboard video?

Since your desktop is a 2010 model, there does exist the possibility that your motherboard has failed.

Try clearing the CMOS settings. There are instructions on how to do that in the motherboard web document. See the following URL.

http://support.hp.com/us-en/product/HP-Pavilion-p6000-Desktop-PC-series/4162263/model/4215698/docume...