broadblues wrote:
@Shamron

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Not entirely true. An electric short, is a digital thing.

No it aint. Not remotely. Not unless you have a supercooled superconddcting connection.

All imaginary scenarios aside, nuclear spiders interfering with the delicate copper connections, alien octopuses sucking the hasty electrons out of the cables, etc... An electric short is "digital" in the manner of it's either "1" or "0". Either you have a short, or you don't.
If you stick a straightened paper clip into the ATX-connector's pin 14 and 15, the result won't be stopped by a speck of dust or some corrotion, nor the slight oxydation on the surface of either the connector or the paperclip. It will give a short. Otherwise, you're better off fiddling with MacOS or Windows.

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It's either a short, or not. So when pins 14-15 are shorted, they're shorted.

It's either open cicuit (very high resitance) ot closed with a hopefully low resitance, but dirt can make that low resutance higher than you expect.

Again, see above. If you stick a paperclip into the connectors female socket 14 and 15, you WILL short the two pins. Unless you're a fairy without the ability to actually STICK it in there. You know when it's in there or not. It's not like wawing a daisy aound in a bucket... It's a paperclip, and you FIRMLY stick it in the female connectors. Any random dirt will be brutally forced away.
How dirty must a paperclip and a female connector be to not make contact when forced together?

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Also, the lowest wattage, might not make for a stable computer if you balance usage very close to it's capacity.

Lowest wattage maybe not, but you do need to put aload on the supply so you need a supply so you should use one of the right ball park rating.

Reading from both my Fluke 87V multimeter and my Variac, my X1000 draws about 180W. It runs comfortably from the 900W PSU. The PSU doesn't even run slightly warm, which means the capacitors inside it won't run the risk of drying out for many years. The more you oversize your supply side of your life, the longer stuff lasts due to less strain on the supply side.
In my 2x15W Linsley Hood Class A amplifier, i have a 600VA toroid transformer. It can comfortably deliver 16Amperes, but since the amplifier "only" draws 2,5Amperes per channel when idle, it means both the transformer and rectifiers run pretty "cold", and the ripple from the smoothing capacitors are also pretty low, since i've also over-sized those. (2x100.000uF)

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But having a 1000W PSU on a 150W computer is shooting sparrows with a cannon.

Try that, I'll thjik you'll find that a cannon is too slow to manouver and the sparrows too fast to aim at...