Computer won't turn on, took cover off and gpu has lights but noting else will turn on

[Statera]

Like the title says I took my cover off and tried to turn it on, my gpu lights are on but nothing else runs

I have a gigabyte ga-h110m-a mobo
Asus strix Radeon r9 390 gpu
Intel i5-6500
Evga supernova 750 watt 80+ bronze

 

[alexoiu]

Try testing the power supply: https/www.youtube.com/watch?v=5FWXgQSokF4
See if a fan connected to it does spin.

 

[Statera]

I don't have a cable to connect it but would it work if I connected my fan controller to the psu and fans to the controller and did it that way

 

[Statera]

I tried to do it with the fan controller and nothing happened psu fan didn't start neither did the fans so do I need to get a new psu? And I thought since when I have it plugged in my gpu lights up why is that?

 

[alexoiu]

It seems that the12V rail is defective. Try testing different power supply.

 

[Statera]

I don't have another psu, should I buy a new one?

 

[alexoiu]

If under warranty, try RMA-ing yours.

 

[Statera]

Thanks for your help I did that and they already sent me the RMA number so I'll be shipping It out tomorrow

 

[alexoiu]

You're welcome. Please post back the result.

 

[Statera]

Well I got the PSU and it still won't work, so it isn't the psu...

 

[alexoiu]

If disconnecting the 4 pin power cable from the motherboard, connecting a case fan to the board and starting it, does the case fan spin?

 

[Statera]

If disconnecting the 4 pin power cable from the motherboard, connecting a case fan to the board and starting it, does the case fan spin?

Could you be a bit more specific as to what you mean? Also how would I test my motherboard to see if it's dead or not

 

[alexoiu]

Leaving the 24 pin power cable connected to the motherboard, but disconnecting the 4 pin one. Connecting a case fan to the motherboard. Starting the board. See if the case fan does spin.

 

[Statera]

Leaving the 24 pin power cable connected to the motherboard, but disconnecting the 4 pin one. Connecting a case fan to the motherboard. Starting the board. See if the case fan does spin.

Okay thanks I'll try this once I get home, but what is this suppose to test?

 

[alexoiu]

Checking if board sending the PSU On signal.

 

[Statera]

Checking if board sending the PSU On signal.

The case fan didn't turn on although when I have my keyboard plugged into my mobo USB port it'll light up

 

[alexoiu]

Then it looks like a defective board. Whatever damaged the power supply, might have damaged the board too.

 

[Statera]

Then it looks like a defective board. Whatever damaged the power supply, might have damaged the board too.

Alright looks like I need to buy a new board, should I unplug everything in it and take the cpu out or is it safe until I buy a new one

 

[alexoiu]

I suggest not buying a new one before testing the components at a local pc repair shop.
There might be other faulty components too.

 

[Statera]

I suggest not buying a new one before testing the components at a local pc repair shop.
There might be other faulty components too.

Alright thanks for the help I'll take it in in a couple of days, for now should I unplug everything and take the cpu out or is it fine to leave it in for now