CPU Temp reaching 100 easily under no significant load

[El Mejor Elemento]

Hi guys.
I'm having this problem for about a month and is stating to stress me because I don't find a possible cause more than my Motherboard and CPU being broken.

So... Lets start with the PC Specs:
- Rog Strix B560-A gaming Wifi
- Core i5 11400
- Corsair Vengance DDR4 16 GB (2x8GB) 3600MHz
- Lian Li Galahad AIO 240 Liiquid cooler
- Zotac RTX 3060ti
- NZXT C750 gold certified
- BeQuiet! Purebase 500 (case)
- WD Blue 1000GB M.2 3.0 Nvme SSD

I had this PC for about 3 years now. and I never had any mayor problems or anything that I couldn't solve.

But out of nowhere while playing Fortnite I saw that there was a red light on my motherboard. and upon opening MSI Afterburner to check my performance i saw that the CPU was runing at 100 C° (the performance was the same as always).

That same day I tried rebooting, cleaning BIOS, getting rid of some custom white cables from Ali Express i bought at the same time I bought my PC thinkging something (or a combination of all this) will solve the problem and it did... for about a day.

Then I was getting 50° to 70C° during normal operation or working. and seeing peaks of 80° to 90° if I oppened discord, youtube and a copuble of tabs more.

After popping out and in the AIO once more i got it to work fine for about a couple weeks. I even deep cleaned it and change the thermal paste.

Also I got to a technician to know what part of the PC was doing all this problem.

He tested every single part of a diferent PC with a rtx3060ti, another ram, a Z590, another SSD, a corei5 10400 and a stock cooler and on every combination possible, when my motherboard or my procesor was used. It would go to 100C° under stress test. Even another 11400 and a i7 11700 went to 100C while using it with my MB.

I go as far as to test every RAM timing configuration (XMP) and turning off and on the voltaje unlock on the BIOS. (I always got it on and my CPU would stay at 50C under the heaviest of loads)

The only thing i haven't try is formating my PC because I on the final weeks of the semester and I don't want to loose anything at this time.

Any comment on what could be happening?
Do I need to change my processor and MB or maybe formating my PC is the answer?

[_I_]

make sure the cooler is installed properly

the cpu can work without a cooler, but will throttle to save itself

[r.linder]

Wouldn't make sense why it would be the motherboard unless you changed things in the configuration before it started, it should just be the cooler

[Fake]

It sounds like your AIO pump might have died.

If you have a stock/air cooler, test to see if that solves your issue.

[Guydodge]

use a app that lets you monitor pump speed not just temp.could be intermittently failing
im sure lian li software has that capability

[ˢᵈˣ FatCat]

Messaggio originale di Elote:

He tested every single part of a diferent PC with a rtx3060ti, another ram, a Z590, another SSD, a corei5 10400 and a stock cooler and on every combination possible, when my motherboard or my procesor was used. It would go to 100C° under stress test. Even another 11400 and a i7 11700 went to 100C while using it with my MB

Did he use the same CPU cooler? then your AIO is kaput
if your CPU is broken, you cant even boot, or screen suddenly freeze or even worse
gesus dont go tweaking tweaking voltage or something like that, you creating problem in your head again
your PC worked for 3years, thats a clue that settings bios doesnt matter or not matter

[El Mejor Elemento]

Messaggio originale di _I_:

make sure the cooler is installed properly

the cpu can work without a cooler, but will throttle to save itself

Yeah, I reinstall it properlly, I was working completely fine. In want to think that the pump died but i ramp it up on the BIOS to check if it was working well. Also the technician tried with a intell stock and it ramp it up to 100C° also. I know is a stock one but i guess it should be at 80 or 90? Not 100 right away :(

[_I_]

with a clc, always have the pump at 100%, and fans set to cpu temp

[Wichtelman]

Messaggio originale di Elote:

Messaggio originale di _I_:

make sure the cooler is installed properly

the cpu can work without a cooler, but will throttle to save itself

Yeah, I reinstall it properlly, I was working completely fine. In want to think that the pump died but i ramp it up on the BIOS to check if it was working well. Also the technician tried with a intell stock and it ramp it up to 100C° also. I know is a stock one but i guess it should be at 80 or 90? Not 100 right away :(

idle it should be way below that but during gaming it is probably normal for a stock intel cooler...

[ˢᵈˣ FatCat]

uninstall MSI afterburner or asus armory AI suite,

[El Mejor Elemento]

Messaggio originale di ˢᵈˣ FatCat:

Messaggio originale di Elote:

He tested every single part of a diferent PC with a rtx3060ti, another ram, a Z590, another SSD, a corei5 10400 and a stock cooler and on every combination possible, when my motherboard or my procesor was used. It would go to 100C° under stress test. Even another 11400 and a i7 11700 went to 100C while using it with my MB

Did he use the same CPU cooler? then your AIO is kaput
if your CPU is broken, you cant even boot, or screen suddenly freeze or even worse
gesus dont go tweaking tweaking voltage or something like that, you creating problem in your head again
your PC worked for 3years, thats a clue that settings bios doesnt matter or not matter

I wanted the problem to be the AIO but he tested with a Stock Intel and it ramp it up to 100C as soon as he stressed it. I know is a stock Intel but I should be 90C max I guess.
I stopped playing with the BIOS, putting it all back as where it was before the problem happened.
Also I'm seeing on the Afterburner that the Core Clock is on max most of the time. I don't know if that is related but when I started checking for it On-line i Saw a couple of similar cases but they don't really provide a solution.
Also I Will try a good air cooler to doble check if the pump is Dead

[El Mejor Elemento]

Messaggio originale di r.linder:

Wouldn't make sense why it would be the motherboard unless you changed things in the configuration before it started, it should just be the cooler

Yeah, I will double check getting a good air cooler but on the mid-time
Any good program to check if my pump is falling? And what would be the values that i'll be looking for

[El Mejor Elemento]

Messaggio originale di Guydodge:

use a app that lets you monitor pump speed not just temp.could be intermittently failing
im sure lian li software has that capability

Will try that
What would be the values that I should be looking for?

[A&A]

50° to 70C° during normal operation is not ok
How much is the TDP during this state?

[El Mejor Elemento]

Messaggio originale di ˢᵈˣ FatCat:

uninstall MSI afterburner or asus armory AI suite,

I was also thinking about that tho.
And also I saw somethint about the Nvidea Software causing Core Clock constant spikes with some Intel CPUs
My CPU is getting to max Clock like 98% of the time. Everytime I switch apps or if I have more than 3 apps opened at the time. I won't know if that is related tho

[El Mejor Elemento]

Messaggio originale di A&A:

50° to 70C° during normal operation is not ok
How much is the TDP during this state?

From 17W to 34W
At 51C° at this moment.
I have Teams, a VPN, a remote desktop and WebEx. Work stuff. And The MSI afterburner to check
Also I'm seeing that the CPU Clock speed gets to max consistently. Like every half a second or so (4.4)