Plz help , new build won't boot, power switch clicks then nothing.

Titchy · 4 Jun 2023 at 20:48

Hi everyone , i have made a new build PC today and it won't boot.

I have built multiple PCs in the past without issue but i am baffled as well as gutted.

When i turn on the power the mobo lights up with some colours so it is receiving some power anyway.
When i press the power button , you hear a "click" from inside but no fans spin , nothing. It makes no attempt to boot.
I checked the PSU using the jump with a paper clip trick and the PSU fan spins when i do that.

Cpu is
Core i9 13900k
mobo is
Asus TUF Gaming Z790-Plus WIFI (LGA 1700) DDR5 ATX Motherboard
Psu is
Kolink Continuum 1050W 80+ Platinum Modular Power Supply

Any help appreciated as i am truly gutted it hasn't worked.

Mobo takes the normal 24 pin leadsand 2 x 8 power leads which i have checked are all correctly seated.

Thanks for any help.

Titchy · 4 Jun 2023 at 20:59

Tetras said:
Are you running with the graphics card installed?

Checked the front panel (power on, reset, etc) is installed correctly, I assume?

How barebones is your build?

Originally i fired up with full system

4090 gfx card and Corsair vengance 32gb memory.
I have now stripped back to just mobo / cpu

Yeah i have checked and double checked the power / reset etc as that was one of my suspicions

Titchy · 4 Jun 2023 at 21:01

Tetras said:
Do you have the USB connectors connected, or just 24/8/8 and front panel?

Ive disconnected them now so just the Panel and the 3 power connectors

Titchy · 4 Jun 2023 at 21:02

Still the same though sadly

Titchy · 4 Jun 2023 at 21:17

Tetras said:
What cooler are you using? Is there potential for it to be overtightened or unevenly tightened?

Did you try flashback at any point?

Thanks so much for all your effort so far
its a
be quiet! Silent Loop 2 360 High Performance CPU Water Cooler - 360mm

I don't think so but i will slacken it back slightly and see

Titchy · 4 Jun 2023 at 21:18

Not sure what flashback is , havent managed to get it to come alive at all

Titchy · 4 Jun 2023 at 22:16

I could strip my PC that i am typing on here try that i guess!

Titchy · 5 Jun 2023 at 07:06

Hey everyone , thanks for all the suggestions last night.
I took an older PSU and leads and i was able to identify it as a dodgy power lead.

I put everything back together an used a lead from the old psu and it has boote straight to BIOS this morning and is now installing windows as i type this !
Thanks again lads.