PC wont boot...need help please!

[VigilanteCS]

Hi,
This tuesday I came home from school, but when i went to turn on my pc, it wouldnt at all. I nelt down behind the pc and the psu was making a nasty "sssssssss" sound, and it smelled a little bit like it was burning. So I did the logical thing and ordered a new PSU, which should be here tomorrow.

My problem is this, when I unplug the psu from my motherboard the "sss" sound stops, and itll start again as soon as I plug it back in. Also, this psu will boot my brothers celeron 766 compaq pos pc. I'm worried that a part other than my psu is defected, like my motherboard. The specs of my computer are as follows:
MSI K8N Neo Platinum
AMD Athlon 64 3000+ 754
512 mb kingstong hyperX
Radeon 9600 pro
80 gig IDE hdd
350 watt Codegen psu (420 thermaltake on the way)

Any suggestions about what I should do? If this PSU doesn't fix it I'm going to RMA the motherboard.
Thanks again!

 

[mechBgon]

Hey newbie do us a favor and don't cross-post in the future. You've got a post over in General Hardware already

That said, I looked at your GH thread already, and I saw that your new PSU is arriving tomorrow. Other than helping you break into the FedEx facility and liberate it tonight, I don't know what we can do to help right this instant Sit tight, and remind yourself to never again accept a cheapie PSU as the foundation of your nice rig.