PC freezes during bootsequence

[Allmonor]

When turning on the Computer it will start booting very normally, the UEFI sign shows up for a split secound, then the windows sign appears and the loading ring. However after a few secounds the loading ring just freezes and the Computer stops responding.

I have tryed changing the harddrive and booting into a Windows 10 fresh install USB -stick, but here again the windows sign appears, and then just before it is about to disappear it freezes...

The Windows automatic repair option, safe mode ect. also freeze before any pressable button even appears.

The next thing i tryed was swapping the RAM, but this also didnt fix the issue.

The computer still boots into the Bios without a problem and displays every component correcty. But if i try booting into anything that is not the bios it just freezes before i can press anything

 

PC specs:

CPU: i7-4790k cooled with a Noctua NH-D15

MB: Gigabyte GA-Z97X-UD3H (rev1.0) (Bios vers.F7)

RAM: 24gb 1600mhz (2*8gb, 2*4gb)

GPU: GTX 1080 Palit

PSU: BeQuiet Dark Power 11 750w

 

(PS: ples dont tell me its a GPU thing i dont want do deal with the GPU market RN  )

Thank you for your advice in advance

[GaticusHax]

If it's not overheating then I'd suspect the PSU.

[Allmonor]

1 hour ago, GaticusHax said:

If it's not overheating then I'd suspect the PSU.

is there a way of savely testing it without buying a new one and testing that way?

[GaticusHax]

Unfortunately, there's not much you can do aside from trying another PSU, unless you know how to use a multimeter.

Clarify what you mean when you say that you swapped the RAM. You have other known-good RAM that was not already in your system, or you moved the existing RAM in the slots?

[Allmonor]

7 minutes ago, GaticusHax said:

Clarify what you mean when you say that you swapped the RAM. You have other known-good RAM that was not already in your system, or you moved the existing RAM in the slots?

I removed all the ram sticks but one, tried it with all 4 sticks. So it would be possible they are all dead. But would they still show up correctly in bios then? also i did a ram test some weeks ago using some software solutions and they said they were all good  

 

I mean i still have a 550w psu flying around here but thats also 7yrs old and from the lower quality line from bequiet xD So i dont know if its worth testing with that

[GaticusHax]

You should try the 550W.

You can also try removing the graphics card and see if you can run with the internal GPU since you have one.

[GaticusHax]

 

20 minutes ago, Allmonor said:

I removed all the ram sticks but one, tried it with all 4 sticks. So it would be possible they are all dead. But would they still show up correctly in bios then? also i did a ram test some weeks ago using some software solutions and they said they were all good

If you tested you RAM as you described and the PC wouldn't boot with any stick, then I believe they are fine. The bios would usually still detect them even if they were faulty. If one of the RAM sticks was the culprit, it would be unlikely that the entire stick was simply dead, there would be faulty memory regions that would only be detected with a deep memory scan.

[Allmonor]

Thank you very much for your advice so far. i guess i ll have to rewire my PC with the other psu then and unplug the GPU when i find the time to do that. I will give an Update when its done.

Update: Tested the System with an other CPU of the same socket, system is running fine with it. The Problem seems to have lied in a faulty CPU.

I dont know how, but i guess the PCIE bridge on the CPU is broken, it seems to run fine normally, but as soon as an other component is added over PCIE-Express (Like a GPU) the system does not work anymore. 

Edited October 9, 2021 by Allmonor
Update, found faulty part