Power supply issue?

[bondedlead]

Here is the problem: My P4 2.8 Ghz computer started reboot (not a cpu overheat issue CPU maxes out at 45 C) while playing a game. It got worse to the point where my computer wouldn't get past bios and would reboot. I noticed my video card fan was getting louder so I figured the fan was going bad. I replaced the fan on the card but still wouldn't work so I replaced the card. It worked fine for a while then I had the same reboot problem again. So I tried swaping parts out to troubleshoot and reboots without the cdrw and DVD drive connected. So I figured that the 350W PSU was not enough so I bought a new 550W PSU. I just installed the new PSU but it doesn't seem to work just the heatsink fan spins for 10 secs. Old PSU still works but new one doesn't. Please help I am not sure what is going on.

P4 2.8 Ghz
1024 MB RAM
ATI Radeon 9250 128 MB
Windows XP Home

 

[furballi]

Run MEMTEST86+ for 1/2 day to check RAM. Wipe the hard drive and clean install Windows.

 

[bondedlead]

I doubt it is memory problem. The computer is running fine now without cd/dvd drives connected(drives are good). Also, I have a SATA drive and card which was installed. Running off clean install of other ATA drive now. Computer won't boot when connecting an other power connectors. It won't even go to bios. Anyone have any other suggestions?

 

[shoRunner]

350watts is more than enough. what brand 550w.

 

[bondedlead]

Originally posted by: shoRunner
350watts is more than enough. what brand 550w.

http://www.newegg.com/Product/Product.asp?Item=N82E16817704003

 

[bondedlead]

I just noticed the fan on the old PSU isn't working. New PSU must be DOA since it doesn't work at all. Any suggestions for replacement from Newegg?

http://www.newegg.com/Product/Product.asp?item=N82E16817153007 good choice?

 

[dnuggett]

That PSU (550) you bought is junk. You don't need a 550W but if you must:

Antec

Otherwise I'd go with this:

Antec 380W

 

[bondedlead]

Originally posted by: dnuggett
That PSU (550) you bought is junk. You don't need a 550W but if you must:

Antec

Otherwise I'd go with this:

Antec 380W

:disgust: I realize that now after looking around here and elsewhere so I am sending it back and getting some other PSU.

 

[imported_rod]

Is there any visible damage to any of the internal components?

Also, you might want to try cleaning everything. Dust can cause all sorts of random problems. (So can lamingtons - but that's a story for another day).

RoD

 

[dnuggett]

Originally posted by: bondedlead

Originally posted by: dnuggett
That PSU (550) you bought is junk. You don't need a 550W but if you must:

Antec

Otherwise I'd go with this:

Antec 380W

:disgust: I realize that now after looking around here and elsewhere so I am sending it back and getting some other PSU.

Thanks, kinda figured that which is why I listed two other choices.