HP Pavilion not powering up????

[snoopy29]

My sister has a HP Pavilion desktop computer. She said it just had a blank screen so when I checked it out it turned on with no problem. I then shut it down and tried to turn it back on just to see if I could get it to do what she said but at that point it would not power up at all. The fan wont come on or anything. I switched out the power cord and it still wont come on? Does anyone have any ideas? I greatly appreciate any help.

Thank you.

 

[NathanM]

Before this happened, was hardware recently added or any internal modifications made? Nothing happens when you hit the power button? No beeps, no fans, no PSU, no lights? This is a really common sense thing which probably isn't the case, but make sure that the PSU's power switch is on . After that if that isn't the case, open up the PC and check the power connections to the motherboard.

If nothing prevails, something may be broken.

 

[snoopy29]

Nothing was added as my sister doesnt know anything when it comes to that. I'm ok with the basics with installing drives and memory. When I went over to her house all I did was hook it back up and turned on. It came right up and I thought she was nuts. I said let me reboot to see what happens and it was dead. No fan, no lights... nothing. Thank you for responding.

 

[Stealth1S1K]

Id suggest the PSU is shotif as your saying u get no fans or lights. If you had anything added as b4 i would say check all internal connections. But as nothing has changed your power supply seems to be the prob.

 

[snoopy29]

Thank you all for your help. I appreciate it.

 

[RicoDirenzo]

Power supply....now the bad news.......HP's have proprietay PSU hookups and they are expensive unless it is a P4 478 or latter as they use the 12 volt rail and not their proprietary P6 connector for the Northbridge chipset.