HP Pavillion a6000

SledgeDG said:

As for turning on and the comp turning itself off after ~ 5 secs: It might be a long shot but I had that happen at several HPs/Compaqs so far:
HPs are notorious for having the main switch on the comp failing. Those plastic switches are garbage. If you press them too hard or off center they have a tendency to get stuck in the front plate so that the contact never get's released.
(That's just like when you do a hard shut down by holding the power button for 4 seconds) Thus turning on and off without any chance for BIOS Beeps and the likes.
Try turning the computer on with just your fingertip, avoid to push in the button too deep.
Or try to power it on with the front cover of the mini tower removed so that you have to press that little "stick"

-DG

That is a very good suggestion....check for a stuck power button

i had a similar problem a couple of months back, mine was caused by the 4pin ATX power plug not being pluged into the mother board correctly, this is a seperate plug in addition to the 20+4 mentioned earlier if this is not pluged in or not making a good connection then the motherboard will show power but the machine will not boot, maybe worth a look.

thank you all for the quick and very helpful responses.

I have just tried re-seating the Ram. I notice that there is a component that deals with the whole "powering the computer on" ... i say this because thats where the wire that the button is hooked up to.. which is sort of like a card?...

Well i traced all the ends to the motherboard and made sure that those where seated tightly, even all the small connectors and such. Either way i dont beleive that i touched any of the small little details other than the two main plugs to the power supply that i had unplugged with the other power supply i switched to... which by the way... is another story, but ill try your suggestion @SledgeDG and try to figure out how to manually press the button on the case...

I just called friends over at Reddit and Facebook for help

i took the front cover off and found the "stick"

still same results... now to disassemble the SD/ mini SD card reader? that's where the button is located at...

Will do, give me 6 minutes

It's beginning to sound like a power good wire issue.....

You may those helpful.
http://bizsupport2.austin.hp.com/bc/.../c00841410.pdf
Replacing the Power Supply HP Pavilion a6000 Desktop PC series - HP Customer Care (United States - English)

As requested... power supply pictures. Sorry for the long wait... school/work