I had this issue once. It was a 4pin input on the mobo that was faulty.

Try unplugging each pin connector from the mobo and turning on the PSU.

Shiv wrote I had this issue once. It was a 4pin input on the mobo that was faulty.

Try unplugging each pin connector from the mobo and turning on the PSU.

Nothing happened

Vial wrote

Shiv wrote I had this issue once. It was a 4pin input on the mobo that was faulty.

Try unplugging each pin connector from the mobo and turning on the PSU.

Nothing happened

Give us abit more info.

Is it a brand new PSU?
Was the system working before you started unplugging and replugging everything?
Are there any new peripherals?

All my connectors are correct 4 pin 24 pin front panel GPU I dont understand why its not booting

Shiv wrote

Vial wrote

Shiv wrote I had this issue once. It was a 4pin input on the mobo that was faulty.

Try unplugging each pin connector from the mobo and turning on the PSU.

Nothing happened

Give us abit more info.

Is it a brand new PSU?
Was the system working before you started unplugging and replugging everything?
Are there any new peripherals?

No it wasnt working its a new build Its not even turning on like no lights fans not spinning nothing its an xfx 400 wat 80+

You 100% sure it's your PSU?

Do you have any LEDs on your board as they should all be green when the board has power? Do the fans spin? (If you have one) Do the GPU lights come on when the PSU has power? Ensure that all the cables are plugged in correctly and ensure no pins are bent in the 24PIN connector.

If you can, try and get a PSU tester you can get them for cheap and it tells you the voltage output etc. If you need any help drop me a PM

AD4M wrote You 100% sure it's your PSU?

Do you have any LEDs on your board as they should all be green when the board has power? Do the fans spin? (If you have one) Do the GPU lights come on when the PSU has power? Ensure that all the cables are plugged in correctly and ensure no pins are bent in the 24PIN connector.

If you can, try and get a PSU tester you can get them for cheap and it tells you the voltage output etc. If you need any help drop me a PM

Im not even sure myself bro im certain my front panel connectors are correct No fans leds nothing happens when I press the power button on my case

Vial wrote

Shiv wrote

Vial wrote

Shiv wrote I had this issue once. It was a 4pin input on the mobo that was faulty.

Try unplugging each pin connector from the mobo and turning on the PSU.

Nothing happened

Give us abit more info.

Is it a brand new PSU?
Was the system working before you started unplugging and replugging everything?
Are there any new peripherals?

No it wasnt working its a new build Its not even turning on like no lights fans not spinning nothing its an xfx 400 wat 80+

Seems stupid asking but its possible and happens alot; is the power switch on the psu outlet turned on? (on your bedroom wall or wherever the PSU is plugged into)

Do you have another PSU you can try with the mobo and peripherals?
Is the PSU powerful enough to even work with your peripherals?

Vial wrote

AD4M wrote You 100% sure it's your PSU?

Do you have any LEDs on your board as they should all be green when the board has power? Do the fans spin? (If you have one) Do the GPU lights come on when the PSU has power? Ensure that all the cables are plugged in correctly and ensure no pins are bent in the 24PIN connector.

If you can, try and get a PSU tester you can get them for cheap and it tells you the voltage output etc. If you need any help drop me a PM

Im not even sure myself bro im certain my front panel connectors are correct No fans leds nothing happens when I press the power button on my case

When the PSU is plugged into the motherboard and whilst that PSU has power from the mains (3 Pin plug out your wall), you should still get LEDs on your MOBO and also your GPU. (Depending if your mobo has LEDs in the first place) If the LEDs don't light it could suggest that your MOBO has died. Can you try a different power cable? Try a different wall input?

Could be a million and one things aha.