Question : Problem: Probably a Powersupply problem

Hi,
My config:
Asus A8n-SLI
AMD Athlon 64 4200 939
1024 Mb DDR400 OCQ
WD 250 Gb
BFG PX7600GT 256Mb
Power Supply of 450W

When I open my computer I have an error H/W Monitor status Abnormal

I go in the Bios and found this in RED

3.3V Voltage : 2.22V/2.23V

I would like to know if it's my Power supply the problem and I yes is it because I never a biger one (550W or 600W Power supply) ???

Thx for your help everybody !!!

Answer : Problem: Probably a Powersupply problem

What brand of PSU do you have? All PSUs are not created equal. I recommend a good quality one of at least 500 watts for your configuration. A good 450 watt one will likely handle current load, but it's better to have sufficient margin.