We ordered 450 or so identical desktop PCs (small form factor). The power supplies keep going out on them and I think that it is because they are underpowered, but am not knowledgeable enough to decipher the readings on the PS label to figure out what I need to know. Can anyone explain this to me? I have listed the information from the side of the PS below. These power supplies are being used in P4 2.4 GHz machines with everything onboard/no cards. Simple logic tells me that 200W is way too low, but I need more than "what I wouldn't do...". According to Intel's website, P4 PC need a minimum of 250W PSs, but the manufacturer says that they are fine because they use the correct amperage per pin. Again, I'm not knowledgeable with electricity, so please keep it on my level. The more explanation/detail, the better. Also, I can't seem to get 200W when I do the math. I get much higher, probably doing something wrong. Thanks.
AC Input: 50-60 Hz
~100-127V,5A
~200-240V,3A
DC Output: 200W Max.
Red: +5V 15A
Orange: +3.3V 16.7A
(Red and Orange are 125W Max. according to the label)
Yellow: +12V 10A
(The 3 combined are 185W Max. according to the label)
Blue: -12V .3A
White: -5V .1A
Purple: +5VSB 2A
Gray: Power Good
Green: R/C
AC Input: 50-60 Hz
~100-127V,5A
~200-240V,3A
DC Output: 200W Max.
Red: +5V 15A
Orange: +3.3V 16.7A
(Red and Orange are 125W Max. according to the label)
Yellow: +12V 10A
(The 3 combined are 185W Max. according to the label)
Blue: -12V .3A
White: -5V .1A
Purple: +5VSB 2A
Gray: Power Good
Green: R/C