DFI Inifinity Motherboard Power Problem!?

I have a DFI Infinity NF4 SLI motherboard with an Antec 350W powersupply. Lately I've been having problems getting the motherboard to turn on. When I press the power button, no fans turn on and nothing in general happens except for the standby power LED on the motherboard is on. Has my power supply failed me?

System specifications:
AMD Athlon 3800+ X2 (Socket 939)
3 GB memory (2 x 1 GB + 2 x 512 MB @ 333 MHz)
XFX NVidia 7600 GT (x 2, 256 MB each)
250 GB Western Digital HD @ 7200 RPM (PATA/IDE)
160 GB Seagate HD @ 7200 RPM (PATA/IDE)
Memorex DVD Dual-Layer Burner (PATA/IDE)
TDK CD-RW Burner (PATA/IDE)

2008-08-15T14:24:49Z

The configuration I have was working for the most part for a few weeks though. Now it doesn't want to start. I plugged in a spare power supply (420W) and the motherboard did turn on with all the fans and everything. I'm now very certain that it was the Antec 350W power supply.

Anonymous2008-08-15T13:12:05Z

Favorite Answer

Two GeForce 7600GT-based graphics cards running in NVIDIA SLI configurations, a minimum 400W system power supply (with 12V rating of 22A) is recommended.

Anonymous2008-08-15T19:22:56Z

You may need a 550W power supply with the specs you gave