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Dual Power Supply?lies

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by stuart_at_oz

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Power supply switching?
Is that how the motherboard turns the P/S on? by putting a load across the +5 volts?

>It loads the +5 so that the power supply will >run, and the LED shows that some voltage is >present.

I have been wondering about the feasability of using 2 ATX power supplies on one PC - but wasn't sure how the motherboard switched on the power supply. If I tap into the +5 v on the existing P/S and connect it to the same wires on the 2nd P/S, would this activate the 2nd P/S?

2 replies

by stuart_at_oz

Sorry about that origina post - I hit the enter key by accident.

What I meant to ask, was:

I have been wondering about the feasability of using 2 ATX power supplies on one PC - but wasn't sure how the motherboard switched on the power supply.

Someone has suggested that the power supply is switched on by putting a load across the +5v. can anyone tell me if this is correct? and for that matter, can anyone tell me which +5v line they mean?
If I tap into the +5 v on the existing P/S and connect it to the same wires on the 2nd P/S, would this activate the 2nd P/S?

Thanks,

Stuart

by djent

Sounds like you experimenting with welding technology. buy a case with redundent PS.

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