moron plugged modular psu into it self question

[killster1]

plugged one modular cable from psu back into psu.. (wtf was he thinking) and did not plug power into mobo (4 pin regular molex is required)

think this will fux a psu up? my father in law did this and now the video card slot does not seem to work (green light on lcd but no video output) tested with two working gfx cards..

 

[Renesis13B]

Leave it unplugged for 15-20 mins and try it again. Some psu's will shutdown when a short is detected and need to be discharged before they will start working again.

 

[FLECOM]

if the PSU has single rail +12 lines it shouldent do anything

if it has multiple +12v lines, could be bad times lol

 

[JonGerow]

What happened to the PSU depends on how the PSU's modular connectors are wired. If they're wired the same on both sides of the cable, nothing will happen because there is no load and you're wiring +12V to +12V, ground to ground, etc.

if the PSU has single rail +12 lines it shouldent do anything

if it has multiple +12v lines, could be bad times lol

Umm... no. That's incorrect. Regardless of # of +12V rails, a short is a short.

 

[killster1]

ok the psu altho very nice is not what im worried about.. im worried about the gfx card slot on the dfi 939 sli mobo.. could it have fried any of the stuff plugged into the psu? its a modstream 450w ocz so im pretty sure its multirail psu

 

[naid]

You may have to start eliminating components one by one, and having a second machine to test them in would make this fairly easy.

 

[Arcygenical]

Umm... no. That's incorrect. Regardless of # of +12V rails, a short is a short.

Aren't most modular cables wired straight through, aka, you would have a situation as you described, 12v to 12v, and ground to ground with no load, and no problem.

Question then, if the PSU was a dual rail design, and the rails were plugged into eachother, straight through (12v to 12v, and ground to ground, like above) would that short anything out inside the PSU?

 

[JonGerow]

Aren't most modular cables wired straight through, aka, you would have a situation as you described, 12v to 12v, and ground to ground with no load, and no problem.

Some are. Most have a different connector on each end, but those you can't usually plug into one's self.

Since we're talking about a Modstream, we're talking about straight through wires with the same connector on each end. Plugging a Modstream into itself does nothing.

Question then, if the PSU was a dual rail design, and the rails were plugged into eachother, straight through (12v to 12v, and ground to ground, like above) would that short anything out inside the PSU?

No. "Multiple +12V rails" aren't "multiple +12V rails" at all. They're typically just one +12V rail that's split into separate circuits, each with a limit on it. Nothing more.

http://jongerow.com/BFGPower/multiple12.html

 

[Xenozx]

eh, ive almost done this before. I almost plugged my PCI-E power into my PSU's 8 pin PSU connector. The good news is, I was looking fo the 4th PCI-E connector and figured it out before I powered on It can be a mess of cables down there sometimes

 

[killster1]

if it did nothing then how is this problem right after explained? my only problem is the 2 or 3 kids i watch if im not at work so ill get this solved but its very odd ;/

 

[JonGerow]

Coincidence?

I think we're missing information here.

He was plugging the PSU in... why? Replaced the board? Replaced the PSU? Transplanted everything into another chassis?

A person doesn't just open up a working PC, grabs a loose cable and plugs it back into the PSU. Why don't you give us some background.