Mobo LEDs, Cpu Fan Spins for a second, then stops... no power...

[Hardwire]

Ok, so I got everything put in my pc. Hit the power switch and nothing... suprise suprise. Well anyway. I disconnected everything except the Motherboard and tried again... nothing. So I just popped it back open and hit the power button on the motherboard. I get the motherboard LEDs and the processor fan spins for a second then stops. I think it might be because my power supply is crap.

I have a MSI K9A2 Platinum Mobo and a AMD Phenom 9850 BE Processor. The power supply is a crap came-with-the-case 425W PSU.

Anyone have any idea? I don't think anything's connected wrong, but it just refuses to start.


P.S. if anyone has an extra PSU laying around i'll take it lol, i'm broke as hell.

[George Hallam]

What are the rest of your system specs?

Also make sure all of the cables are plugged in and are secure make sure you have the 24 pin and the 4 pin are in the MOBO. Also try a bare boot with just one RAM stick, VGA, CPU (and HS/F) and that's it see if it boots then

[Hardwire]

Ok running a:

K9A2 Platinum Mobo
Phenom 9850 Black Edition Processor
4 Gigs of Kingston HyperX DDR2 1066
Radeon 3870 OC VGA
but i'm booting it with an AMD Athlon 64 x2 4000 (so I can flash the Bios to run the Phenom)

320 Gb Seagate HD
Sony 20x DL Dvd/Cd-RW


And I just bought another power supply, BFG 650W with dual 12v rails. Hopefully that helps, if anyone can think of anything else that might be causing this please let me know.

[hal515]

clear the CMOS, I had this same exact problem because I somehow screwed with the CMOS on start-up. Then I pulled the little black cover off again to clear it and it worked.

[hal515]

It should be near one of those flat batteries you find in watches.