Question CPU starts overheating as soon as I boot my PC ?

[Instinct1016]

I just built a new custom pc and I am having cpu overheating issues, I’ve built plenty of pcs in the past and never had this problem and I can’t find a solution to it. As soon as I turn on my pc it immediately goes up to 90 degrees Celsius and will eventually shut off by itself. I have swapped my cpu cooler and motherboard and problem is still there. There is times that i get lucky and my cpu doesn’t over heat but that is after several attempts of trying to boot up my pc and that is rare. When it does happen my cpu stays at 35 degrees which is amazing but i would have to keep my pc on because as soon as i turn it off i would have to keep powering it on and off till i get lucky again.

Specs:
Motherboard: Rog Strix Z790-E Gaming WiFi II
CPU: i9-14900k
GPU: RTX 4090
RAM: 64GB (4 x 16GB) Corsair Vengeance
CPU Cooler: Kraken Z73 360mm
SSD: Samsung 990 Pro 1TB
Fans: 12 lian li uni fans V2
PSU: EVGA 1000 watts G7

 

[Instinct1016]

I’ve also tried different pin slots on the motherboard and nothing seems to work, RPM Is at 2000

 

[YSCCC]

Did you updated to latest bios with Intel default profile? And… remember to double check your cooler’s protective film was peeled off

 

[SkyNetRising]

I’ve also tried different pin slots on the motherboard and nothing seems to work, RPM Is at 2000

Connect cpu cooler to AIO_PUMP header on motherboard.
AIO cooler pump has to be running at full speed all the time.
Do not connect AIO pump to regulated fan headers.

Also update BIOS to latest version (that includes microcode 0x12B update), to prevent possible CPU deterioration.

 

[Instinct1016]

I’ve updated to latest bios and I’ve connected the headers to the correct spot, no protective film either. Everything else is fine I’ve changed and replaced almost every part but the cpu. Nothing seems to work.

 

[JohnBonhamsGhost]

I’ve updated to latest bios

also be sure to reset BIOS defaults after each update.

 

[Instinct1016]

Everything is at default

 

[JohnBonhamsGhost]

Everything is at default

defaults from before an update may not be the same as after.
especially in these situations where Intel is altering features to help with all of the issues surrounding these last 2 generations.

 

[Instinct1016]

In this case, what can I do?

 

[JohnBonhamsGhost]

In this case, what can I do?

manually,

reset BIOS defaults after each update

 

[Instinct1016]

I’ve done that already and nothing changed it’s still over heating

 

[Unolocogringo]

I’ve done that already and nothing changed it’s still over heating

To manually reset bios to defaults .
Enter BIOS
Press F5. Load bios defaults.
At pop up click yes or ok.
Press F10. Save and exit.
Click yes or ok to reboot with Bios defaults enabled.
After reboot enter bios and set XMP for memory.
F10. yes or ok and reboot to windows.
Now you are running Bios defaults and not pre overclock settings from the board maker with the new bios installed.
The original bios files until the last few have had overclocked /unlimited amperage available to them as bios "defaults, with a goof on intels part not to enforce Intel "specs" with voltage and amperage settings available to the processor.

 

[Instinct1016]

I e done this already, still overheating

 

[Nemesia]

Even a non working water cooler which is properly installed would not let your CPU go to 90 instantly.

Your CPU cooler is not installed properly on the CPU.

It can't be a million things at this point if you tried everything.

 

[Instinct1016]

It’s a kraken z73 360mm, I’ve built plenty of pcs, I’ve built this specific pc 4 times before and only this time I’m having issues, there’s times my pc boots up with normals temps and the cooler and cpu are fine but then it goes back to over heating when turned off again

 

[YSCCC]

Even a non working water cooler which is properly installed would not let your CPU go to 90 instantly.

Your CPU cooler is not installed properly on the CPU.

It can't be a million things at this point if you tried everything.

This, if you’re sure you applied the thermal paste and install it properly yet it still get instant 90C in bios… rma it, it can be a faulty sensor or something

 

[Instinct1016]

The thing is I have another exact pc, I’ve switched the coolers that are exactly the same. When I swapped it the same problem still happened but on my other pc the cooler was fine, both coolers are fine with my pc that works, the overheating pc just doesn’t, I’ve swapped the motherboard as well for a new one and still same issue, can this be a faulty cpu?

 

[YSCCC]

The thing is I have another exact pc, I’ve switched the coolers that are exactly the same. When I swapped it the same problem still happened but on my other pc the cooler was fine, both coolers are fine with my pc that works, the overheating pc just doesn’t, I’ve swapped the motherboard as well for a new one and still same issue, can this be a faulty cpu?

It can be and who knows... only thing you could do is to RMA the chip and see what it says

 

[Instinct1016]

I’d rather just get a new cpu tbh and return the one I have. Rma process would just take too long, ima give it a few more days and see if anyone else reply’s and hope to find an answer before doing so.

 

[JohnBonhamsGhost]

I’d rather just get a new cpu tbh and return the one I have.

considering all of the troubleshooting(swapping parts, etc),
and considering that everything had been installed correctly and configured correctly,
i'd think it would have to be a faulty CPU.

you did find that the same issue arises when using this CPU with a replacement board & replacement cooler, right?

if return is still an option,
and the funds for purchasing new are no problem,
then it would be a better option since you'd retain the original warranty for the new CPU and you wouldn't be stuck with a "refurbished" used CPU through the RMA.

 

[Instinct1016]

Perfect, I will do that tomorrow and get a new cpu instead

 

[YSCCC]

Perfect, I will do that tomorrow and get a new cpu instead

I would do that if I had been doing the swarp and the same issue pop up in same CPU, given how disasterous RPL is now it didn't surprise me that more faulty parts are out there, maybe resold as returned parts

 

[Instinct1016]

Yes, there are lots of faulty parts out there nowadays specially the cpu that I have. Intel reported they have a micro code issue I believe but unfortunately my issue has nothing to do with it.