lucky said:
http://www.anandtech.com/showdoc.html?i=1841&p=5
I don't know how good that review was but quote:
You're right to doubt the validity of Anandtech's review because no
testing was done at full load, which is the bare minimum requirement
for an adequate power supply test.
Anandtech is also unjustified in its conclusion that the +12V capacity
is modest because they simply didn't test it, and frankly the whole
review resembles the nonsense sometimes published by snake oil
salesmen when they try to convey a sense of scientific objectivity.
Ignore pretentious charlatans like Anandtech. Tom's Hardware
performed much better testing, although they should have provided
details of the individual voltage outputs at various loads. Silent PC
Review does publish such information but unfortunately doesn't test
beyond the manufacturers' maximum ratings, meaning there's no way to
tell if the supplies will be damaged on overload.
400W is far more than your system will consume, and actually a good
300W supply should be more than adequate for it. But if your
motherboard runs the CPU from the +12V line, as almost all Pentium 4
and even most newer Athlon motherboards do, look for a supply capable
of putting out at least 15A at +12V (actual capacity is not always the
same as the official rating) so that you'll have at least 5A left over
to run all of those disk drives. Antec is a good brand, but their
SLxxx product line doesn't seem to be as underrated as their
Truepowers. Some brands that are as good are Truepowers are Powerman,
Fortron, Sparkle, Hi-Q, Trend, Aopen, Power-Q, and Powertech (not
Powertek), all made by Fortron-Source Power, some available very
cheaply from
www.newegg.com and
www.directron.com. Any of their 350W
models will be more than adequate for your system, but if you need
something stronger, opt for the 530W model since it costs only very
slightly more than their 400W model.
I've recently read of higher power Antec Truepowers popping
capacitors, a problem that affected many of them about 2 years ago,
and this may be due to a run of bad capacitors (but I've seen them
with the same brand capacitors as theirr better competitors use) or a
design that allows too much current to flow just after turn-on.