K8N Neo4 Power Supply Issues

I'm having trouble getting my computer to even start up. I have the Rosewill Performance TU153 case and Athlon 64 3200+ processor, as well as 2x512 MB ram (PQI) and a seagate 80 GB hard drive.  I plugged the power supply wires into the AGX1 slot and JPW1 slot. Then, for the front panel connectors, I plugged in the HDD LED, Reset Switch, Power Switch, and Power LED into the appropriate slots in the JFP1 (with the colored part of the wires going into the positive slot). But the computer doesn't even start up at all. When I flip the switch on the back of the case, the LED will sometimes flicker on and off.

Hi gandalf85,
Welcome to the forum
What are the output amps for your Power supply - should appear ob the side of the unit something like like
Max Output : 3.3v=??A 5v=??A 12v=??A
The 12v in particular is important with AMD64 systems.
see Power Suppy Requirements & Selection
u can try the Quote
Probably the most correct PSU calculator you can use for MSI K8N Nvidia Neo's
to check what power u need.
see my signature 4 link.
luck

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