Windows 7: HP desktop wont power on!! Help!

Idk if this belongs here but seems like the best place. But anyways~ I bought a HP Pavilion Slimline s5220y no more then 2years ago. I had no real problem until today. I noticed the power light was on and thought my screen was just asleep but my keyboard didnt have power going to it.
I forced restarted it. when I power it back on the power light comes on but doesnt power up.
I took off the case and tried to power it up again. My fans move a tad bit when i turn it on but stop after. I swapped power cords and still the same thing.

I tired to to unplug the power cord and hold the power button for 10secs. but nothing.

any idea what it could be? or what needs to be replaced?

Can you boot into BIOS? If not, your PSU might be dead.

Classic dead PSU or motherboard symptoms. I would start with the power supply, as that is what I suspect right off the bat.

Newegg.com - SeaSonic SS-300TFX Bronze 300W TFX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply - Power Supplies

This one has gotten good reviews, and is the size you need.

Normally i cant. But when I do that power drain thing and boot it up it will boot up for a while but then shut off. So I unplug it and hold the power button down again and i can boot it up again but shuts off after awhile.


Oh ok thank you! I hope its just my power supply. If it isnt then how much would it cost to replace the motherboard?

This is what makes me suspect your power supply.

A motherboard can range anywhere from 10-40 used (but you are taking a chance) and 50-300 new in my experiences. Form factor and features play a big part in price.

Ok I guess for now ill just order the PSU that you suggested. Just to make sure, it will fit right?

It will fit. -research completed- Your motherboard (direct replacement) would cost 175 dollars. Just as an off question, do you have a spare PSU you could get ahold of (the size doesn't matter, it's not going to be actually installed)

I could take the PSU out of my mothers Dell. The power cord seemed to be the same.

That would work, and just test and see if it boots (just plug in the hard drive, put it in close proximity to your computer, and hook up the motherboard and hard drive)

Ok so I take my dell PSU and hook it up to my HP hard drive and motherboard?