Maximum wattage on 24pin connector.

[gt_addict]

Hi everyone,

Quick question (as above), what's the maximum wattage you can pull through a 24pin connector? It's on a corsair rm1000 PSU.

Thanks.

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[NotFuzzyWarm]

Um, you need to look at the Corsair's specs... it will be listed there as volts and amps.
Watts = volts x amps

[gt_addict]

I've had a look at what specs I can find but i can't find the detailed specs anywhere. Just gives me the overall amps and volts of the entire unit.

[Prelude]

What does it matter? No bitcoin miner uses a 24 pin connector for power.

Anyways, to answer your question: There are only 2x 12v connections out of the 24 pins. I wouldn't want to pull more than ~6-7A from each, so 14A x 12v = 168w. I'd say anything over 200w and you're chancing molten connectors.

[gt_addict]

What does it matter? No bitcoin miner uses a 24 pin connector for power.

Anyways, to answer your question: There are only 2x 12v connections out of the 24 pins. I wouldn't want to pull more than ~6-7A from each, so 14A x 12v = 168w. I'd say anything over 200w and you're chancing molten connectors.

Well it matters to me because I've got a couple of U3's running of a breakout board which is powered by the 24pin connector from the PSU and id like to add an r-box (110ghs) to the breakout board and didn't want to melt anything.

So thank you for your answer, it's saved me from risking melted plugs and possibly a fire.

[QuintLeo]

The ATX 24-pin connector as I recall only has a couple of +12 leads. Best to ignore it for powering miners, it's mostly about older voltages like +5 and +3.3 and such that USED to be used to power CPUs (and RAM and motherboard chipsets, it is definitely still used for parts of the motherboard chipsets and I *think* it might still be used to power RAM).

[Prelude]

What does it matter? No bitcoin miner uses a 24 pin connector for power.

Anyways, to answer your question: There are only 2x 12v connections out of the 24 pins. I wouldn't want to pull more than ~6-7A from each, so 14A x 12v = 168w. I'd say anything over 200w and you're chancing molten connectors.

Well it matters to me because I've got a couple of U3's running of a breakout board which is powered by the 24pin connector from the PSU and id like to add an r-box (110ghs) to the breakout board and didn't want to melt anything.

So thank you for your answer, it's saved me from risking melted plugs and possibly a fire.

Weird way to power a breakout board, wonder what they were thinking. 

[gt_addict]

It's only because I haven't got a spare 6pin cable (waiting for a new set to arrive. So powering the u3's from the 24pin. But obviously got an rbox too and wanted to find out what the 24pin could handle before I plugged the rbox in and melted the connector.

[philipma1957]

It's only because I haven't got a spare 6pin cable (waiting for a new set to arrive. So powering the u3's from the 24pin. But obviously got an rbox too and wanted to find out what the 24pin could handle before I plugged the rbox in and melted the connector.

Yeah I remember that board it takes a 24 pin which allows the psu to turn on and it takes one or two 6 pin pcie cables

The max draw on that board with proper wires in and out was five watts.

Do less 2 U-3's and 1 rocker box full size is around two fifty watts.

So do not do more and,wait for the pcie cable you have coming

You could do around three hundred max with the two in

[gt_addict]

It's only because I haven't got a spare 6pin cable (waiting for a new set to arrive. So powering the u3's from the 24pin. But obviously got an rbox too and wanted to find out what the 24pin could handle before I plugged the rbox in and melted the connector.

Yeah I remember that board it takes a 24 pin which allows the psu to turn on and it takes one or two 6 pin pcie cables

The max draw on that board with proper wires in and out was five watts.

Do less 2 U-3's and 1 rocker box full size is around two fifty watts.

So do not do more and,wait for the pcie cable you have coming

You could do around three hundred max with the two in

Sorry me being not very computer savvy, I neglected to mention its a rockminer breakout board. 24pin, 3xEPS 8pin, 2x 6pin connectors, 5x RS419 16v 270 Capacitors and a few "+"&"-" screw terminals.

Would I be right in assuming that once I connected the two 6pin cables (as well as the 24pin) it would draw most of the power from them or from the 6pin and 24 pin equally?

[QuintLeo]

It will probably draw most of the 12V from the PIC-E 6-pin and the EPS 8 pin connectors.

 The primary reason for the 24-pin connector is a way to short the power-good leads, either directly or via a switch, to turn the PS on.
 
I'm shocked it would try to draw ANY 12V from the 24-pin connector, but the U3s are pretty low power consumption.