Every time I want to turn my PC on I have to play with the power cable

[ron9639]

Every time I want to turn my PC on I have to play with the power cable, plug it out a little bit and move it around until PC lights up and fans start spinning and I can push the cable back in all the way. A worker in a PC store told me this is not a power supply problem, and that it is a motherboard problem.

 

[Slow Pri]

is this a laptop? If it is, and the worker said that it is a motherboard problem could mean that the AC port on the board is busted. In theory, that AC port is stuck to the board, and to repair it can cost upwards of $100+ in other term's it may not be worth it.

 

[ron9639]

is this a laptop? If it is, and the worker said that it is a motherboard problem could mean that the AC port on the board is busted. In theory, that AC port is stuck to the board, and to repair it can cost upwards of $100+ in other term's it may not be worth it.

No, its a pc not a laptop (not sure ifs the correct term), everytime I want to turn it on I click the power button, nothing happens, then I go to the back and play with the cable like I said.
I have tried buying a new cable to see if it solves the problem, but it didnt.
Apart from this I didnt encounter any other problems with it.
Now I think that this problem started happening because of electricity going down in my area multiple times in a day which I think caused my PC to act in this way.

 

[Slow Pri]

Ok - have you tried another power supply? Sometimes a power surge through the wall can affect the power supply in some cases can actually mess them up.

 

[ron9639]

Ok - have you tried another power supply? Sometimes a power surge through the wall can affect the power supply in some cases can actually mess them up.

No, thats the problem if I had one I would :\. Thats why before making any decision about replacing the power supply or the motherboard I wanna be sure which one it is so I dont waste money, is there any way other then using another power supply to know?

 

[Slow Pri]

If you pull the 20 or 24 pin connector from the motherboard, and you stick a paperclip in the black & green wire and than power on the the power supply to to the wall, (black and green are jumpers to start the power supply) if they don't I'd say I'd replace it. Unless, someone else can give a good guide to other techniques. I've done this a few times in the shop and it seems to work 95% of the time.

 

[derekullo]

I remember from 10 years ago reading that certain older power supplies won't power on if there was not enough of a load to start it.

http://electronics.stackexchange.com/questions/80547/operating-a-switched-mode-power-supply-without-a-load
http://electronics.stackexchange.com/questions/235232/switch-mode-psu-minimum-load

Jiggling the cable might produce enough interference to generate a just high enough spike to start it.

Having said that the solution back then was to have a fan running to generate a high enough load to start the thing.

I would say try adding a few fans to the case/psu of possible, or just replace the psu.

Edit: Second link is a bit more clear.

 

[ron9639]

I remember from 10 years ago reading that certain older power supplies won't power on if there was not enough of a load to start it.

http://electronics.stackexchange.com/questions/80547/operating-a-switched-mode-power-supply-without-a-load

Jiggling the cable might produce enough interference to generate a just high enough spike to start it.

Having said that the solution back then was to have a fan running to generate a high enough load to start the thing.

I would say try adding a few fans to the case/psu of possible, or just replace the psu.

should that even happen that fast? this is a seasonic x series psu..

 

[derekullo]

Ahh nevermind then.

Seasonic x series is definitely not an old switched mode psu