[SOLVED] Where am I going wrong? Send help

[Hobart722]

Today I started my first ever build. And I thought I had been doing everything correctly HOWEVER I can't get the system to turn on at all. I have a brand new (as in out the box this morning) corsair tx650w and tomahawk max b450 mobo. I connected the 24pin and the 8pin but the psu doesnt turn on at all/no fan activity from the psu or the mobo.

Am I doing something really stupid or have I maybe got a defect mobo? (I know it's not the psu as I did the paperclip test and it was fine)

Any and all help would be appreciated!

 

[DSzymborski]

We need all the specs.

 

[logainofhades]

Did you flip the power switch, on the back of the PSU?

 

[Hobart722]

Did you flip the power switch, on the back of the PSU?

Yes

 

[ss202sl]

"No POST", "system won't boot", and "no video output" troubleshooting checklist

"No POST", "system won't boot", and "no video output" troubleshooting checklist This checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to effectively troubleshoot your problem. 1.Did you...

forums.tomshardware.com

 

[Hobart722]

We need all the specs.

DeepCool tesseract case
16gb ram corsair
2400g ryzen cpu and cooler
And as mentioned tomahawk b450 max mobo
Corsair tx650w psu

 

[geofelt]

Verify that both ends of the power supply cables are firmly inserted into place.
Look carefully at how you connected the front panel pins.
It is easy to get the orientation wrong.
Try using a flat bladed screwdriver to momentarily short the two PWR pins on the front panel header.

FWIW, the paper clip test is largely useless.
It can confirm a dead PSU but says nothing about proper functioning of a psu.
Cheap PSU testers are a bit better, but still not a complete test.