Question PC won’t power once CPU_PWR is plugged in

[DXVIDM]

Hi all,

PC specs:
MOBO: PRO Z690-A
CPU: 13600k
GPU: AMD 7900XTX
PSU: Enermax Revolution D.F ERF850EWT

So my PC has been working fine for years, no issues etc. Today I wake up and go to turn it on, it boots for a couple seconds (doesnt display anything to monitor) then shuts off.
I try to turn it on again and the power button does literally nothing, no LED, no Fans, nothing.
So I strip the PC to find out the culprit and test the PSU on its own with the paperclip trick and it works just fine. I’ve tried to slowly place back cables into the PSU and find what the issue is and it turns out when I plug in my mobo 18 pin and 10 pin it turns on with a red cpu debug light, but then I try plugging in the cpu_pwr single 8pin cable and when I try to turn it on the PSU makes a click noise and nothing happens. No fans nothing.

Ive also took out the CPU and checked pins on board and they are all good, re-applied some thermal paste too and still the exact same issue.

Would a new CPU 8pin to 8pin work? Would a new PSU work? Is my CPU dead?


Help me pls!

 

[Lutfij]

So my PC has been working fine for years, no issues etc. Today I wake up and go to turn it on, it boots for a couple seconds (doesnt display anything to monitor) then shuts off.
+
PSU: Enermax Revolution D.F ERF850EWT
How old is your PSU?

So I strip the PC to find out the culprit and test the PSU on its own with the paperclip trick and it works just fine.
The paperclip test is flawed, it doesn't tell you how much power the PSU can effectively output to the entire system, only that it can power up.

Would a new CPU 8pin to 8pin work? Would a new PSU work? Is my CPU dead?
You will need to source(borrow, not buy) a reliably built PSU that can delivery 850W of power to the entire system, from a friend or neighbor in order to rule out your PSU being the root of the issue. You can drop your processor onto a known working motherboard and see if the issue persists.

How are you cooling your processor, btw?

 

[DXVIDM]

So my PC has been working fine for years, no issues etc. Today I wake up and go to turn it on, it boots for a couple seconds (doesnt display anything to monitor) then shuts off.
+
PSU: Enermax Revolution D.F ERF850EWT
How old is your PSU?

So I strip the PC to find out the culprit and test the PSU on its own with the paperclip trick and it works just fine.
The paperclip test is flawed, it doesn't tell you how much power the PSU can effectively output to the entire system, only that it can power up.

Would a new CPU 8pin to 8pin work? Would a new PSU work? Is my CPU dead?
You will need to source(borrow, not buy) a reliably built PSU that can delivery 850W of power to the entire system, from a friend or neighbor in order to rule out your PSU being the root of the issue. You can drop your processor onto a known working motherboard and see if the issue persists.

How are you cooling your processor, btw?

Arctic Freezer dual

 

[DXVIDM]

So my PC has been working fine for years, no issues etc. Today I wake up and go to turn it on, it boots for a couple seconds (doesnt display anything to monitor) then shuts off.
+
PSU: Enermax Revolution D.F ERF850EWT
How old is your PSU?

So I strip the PC to find out the culprit and test the PSU on its own with the paperclip trick and it works just fine.
The paperclip test is flawed, it doesn't tell you how much power the PSU can effectively output to the entire system, only that it can power up.

Would a new CPU 8pin to 8pin work? Would a new PSU work? Is my CPU dead?
You will need to source(borrow, not buy) a reliably built PSU that can delivery 850W of power to the entire system, from a friend or neighbor in order to rule out your PSU being the root of the issue. You can drop your processor onto a known working motherboard and see if the issue persists.

How are you cooling your processor, btw?

Sorry I didn’t notice your other questions. Had the PSU for about 2/3 years now

Okay I don’t really have any PC gaming friends I can borrow a 850W PSU from but I may be able to bring it down to a local vendor and see if they can test it?

 

[--SID--]

The PSU comes with 2 seperate CPU/EPS cables. Did you try both?
Did you try different CPU sockets (there are 2) on the PSU?

 

[DXVIDM]

The PSU comes with 2 seperate CPU/EPS cables. Did you try both?
Did you try different CPU sockets (there are 2) on the PSU?

I cannot find the other 8pin to 8pin cable. if it comes with a spare sadly. And I did try the two different CPU sockets. There is two on mobo CPU_PWR and CPU_PWR_1 I tried both of those too