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Can you turn on the power supply before hooking it to mother board

perillo34

Senior member
I am trying to check on my power supply for audible noise before hooking it to my motherboard do you guys know how to go about this.
Thanks
 
Stick a paperclip in the green connector and any black one on the 20/24 pin connector. It works, tried it yesterday.
 
you can get a power suplie tester. It will turn on when you plug it in but dont leave it pluged in for a long time it will get hot and bad things can happen
 
UM,
maybe you should add
DONT TOUCH THE paperclip while you are doing this unless you are using insulated pliers - just to be on the safe side, eh
 
Originally posted by: montag451
UM,
maybe you should add
DONT TOUCH THE paperclip while you are doing this unless you are using insulated pliers - just to be on the safe side, eh

you can touch the paperclip...the powersupply outputs 12v or 5v. that cant shock you.

also, this is just a power-on connection, so it isnt meant to even drive a component. it is a switch basically.

edit: it actually is causing current in your skin, but it is about 10^-12 amps, so it isnt even close to perceptible and cant hurt you. you start to feel a shock at around 10^-3 amps, so this will put a billion times less than that across your body.
 
Originally posted by: Bigsm00th
Originally posted by: montag451
UM,
maybe you should add
DONT TOUCH THE paperclip while you are doing this unless you are using insulated pliers - just to be on the safe side, eh

you can touch the paperclip...the powersupply outputs 12v or 5v. that cant shock you.

pretty sure that is plenty enough to shock you especially with 15 or 20A on the 12V rail... i'm not sure but just to be on the safe side nobody touch the paperclip ok? sweet.
 
Originally posted by: Atheus
Originally posted by: Bigsm00th
Originally posted by: montag451
UM,
maybe you should add
DONT TOUCH THE paperclip while you are doing this unless you are using insulated pliers - just to be on the safe side, eh

you can touch the paperclip...the powersupply outputs 12v or 5v. that cant shock you.

pretty sure that is plenty enough to shock you especially with 15 or 20A on the 12V rail... i'm not sure but just to be on the safe side nobody touch the paperclip ok? sweet.


Shock you? I would say so! It would light you up like NYC on Christmas Eve... It other words, it would KILL you!
 
Originally posted by: Atheus
Originally posted by: Bigsm00th
Originally posted by: montag451
UM,
maybe you should add
DONT TOUCH THE paperclip while you are doing this unless you are using insulated pliers - just to be on the safe side, eh

you can touch the paperclip...the powersupply outputs 12v or 5v. that cant shock you.

pretty sure that is plenty enough to shock you especially with 15 or 20A on the 12V rail... i'm not sure but just to be on the safe side nobody touch the paperclip ok? sweet.

Look at the manual. +12V = Yellow wires. +5V = red wires. Etc. Green does not carry any voltage or amps like the others. It's merely a switch.
 
As mentioned before though, dont leave it on too long. These are designed to have SOME sort of load on them (notice the MIN on the specs?)
 
Originally posted by: Bozono
Stick a paperclip in the green connector and any black one on the 20/24 pin connector. It works, tried it yesterday.

definately, did the same testing my setup for leaks before powereing up the components.
 
Hi, Bozno has it right with the jumper to green and black. That's exactly what the MB does to turn it on. Mother Boards are pretty silent so you can also just disconnected everything else and turn it on from the button. Leave the HS fan on. You should be able to tell which is the PS and which is the HS fan. Stop the HS fan with your finger on the hub for a fraction of a second to get a better listen. Luck, Jim
 
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