[SOLVED] Need help! My pc wont start at all

[Angelo8]

Hello guys,
Im really desperate now. I bought a new motherboard, cpu and ram few week ago, but my pc wont start.
I tried and tested everything to make it work, but nothing seems to help.
Today I even buy a new motherboard again, because I tought it can maybe be a faulty mb.
I tested my psu with a bridge, but it works.

So what can possible the problem here ?
Do I maybe need a 2x8 pin connector attached to the mb ?
Mb is the Asus rog strix z690 gaming a
Cpu is 12600k.

 

[Angelo8]

Anyone ??

 

[CountMike]

Anyone ??

Could be million things, you need to start from very beginning, Read and understand MB manual, Place MB outside of case, install (very carefully) CPU and it's cooler with fan(s) connected to CPU_FAN, install RAM in proper slots (see MB manual). Connect all suggested leads to PSU and MB. Something must happen when you switch PSU on, fan starting to turn and MB lights light up.
Btw. Just jumping PSU is no guarantee that it's in full working order or 100% compatible.

 

[Mariusglock]

Do I maybe need a 2x8 pin connector attached to the mb ?

So you havent plugged your CPU cables in?

https://imgur.com/a/AUvo4es

View: https://imgur.com/a/AUvo4es

 

[Angelo8]

Could be million things, you need to start from very beginning, Read and understand MB manual, Place MB outside of case, install (very carefully) CPU and it's cooler with fan(s) connected to CPU_FAN, install RAM in proper slots (see MB manual). Connect all suggested leads to PSU and MB. Something must happen when you switch PSU on, fan starting to turn and MB lights light up.
Btw. Just jumping PSU is no guarantee that it's in full working order or 100% compatible.

I did all of this and still nothing works
I tested the psu with the paperclip test, and it worked.
It is really strange.
everything I have is almost new. Cpu - Mb - ram - aio - gpu only 3 months.
Only the psu is about 5 years

 

[Angelo8]

So you havent plugged your CPU cables in?

https://imgur.com/a/AUvo4es

View: https://imgur.com/a/AUvo4es

I did offcourse. Only 1x8 pin
I read that it only need 1

 

[Mariusglock]

Try connecting both, sometimes it might not post without both of them, since you sayd everything is new, and PSU is working,

 

[Angelo8]

My psu is 750w. It is maybe to low ?
I have intel i5 12600k
Evga ftw 3070ti
9 120mm rgb fans from lian li
Lian li aio
2x ssds. 1 sshd

 

[CountMike]

I did all of this and still nothing works
I tested the psu with the paperclip test, and it worked.
It is really strange.
everything I have is almost new. Cpu - Mb - ram - aio - gpu only 3 months.
Only the psu is about 5 years

Paper clip test is no proof.

 

[Angelo8]

Paper clip test is no proof.

So it still can be the psu ?
Maybe its too low ? And because I only use 1 cpu cable ?

 

[Mariusglock]

nah 750W should do just fine, but idk what brand and model you use, just try to plug the second cable, and see how it goes

 

[Angelo8]

Evga supernova g2.
I dont have a second cable here. But people saying you only need 1 so hmm..

 

[Mariusglock]

yeah you do need only 1 most of the time, since second one is most likelly for overclocking, but it also can happen sometimes with the right combination of psu mobo and cpu that it wont post without the second cable
could also be that PSU is done for, so i guess, try new psu or try finding an extra cpu cable.
Weird that your PSU doesnt have a second cable
Is your PC in post/boost loop when you try to turn it on? Do some lights show up when you turn it on? Do fans spin?

 

[CountMike]

So it still can be the psu ?
Maybe its too low ? And because I only use 1 cpu cable ?

There are 6 voltages regulated in at lest that many regulators and few sensors in a PSU, just because fan is working it doesn't mean something else is not wrong.