[SOLVED] 1250W PSU clicks twice and nothing

[HugoTheGreat988]

Hi Guys,

Today I was replacing my 750W PSU for a 1250W (Great Wall) one. When I turn on the PSU the light on my motherboard briefly flicker. (Gigabyte Z390 AORUS PRO) Once I press my PC power button the PSU makes a clicking sound twice and then nothing. Fan hasn't moved once. I then put in my 750W PSU again and that still works because I was afraid I might've fried something.
I'm pretty sure I did everything correctly. I can just keep using the old cables from my previous PSU connected to the CPU right? I changed the one to my motherboard of course and also the ones to my GPU.
What are the odds the PSU is just dead ? I can test it but it will take me a while to get the right equipment I think; if I order a replacement right now I can have it by tomorrow (I'm kind of in a hurry cus I want to mine crypto)

Thanks in advance.

 

[jay32267]

"I can just keep using the old cables from my previous PSU connected to the CPU right? "

You can't assume that cables from two different PSUs are compatible.

 

[jonnyguru]

I can just keep using the old cables from my previous PSU connected to the CPU right?

Nope. You have to use the cables that came with the Great Wall. The pinout on the PSU side is different.

Hopefully you didn't kill your motherboard.

 

[USAFRet]

I can just keep using the old cables from my previous PSU connected to the CPU right?

Absolutely not.

Modular cables and PSUs are NOT interchangeable.
Sometimes even in the same brand.
Never across brands.

 

[AntonyLovric]

I think we need a pinned topic - before posting, read this:

NEW MODULAR PSU - don't reuse the cables.
SMOKE POURING OUT THE BACK || LOUD BANG - Replace It