100C might be concerning, depends on your case airflow and ambient temperature. The bigger issue is the crashing. Modern CPU's should throttle when they get hot, not crash. I would recommend running OCCT in CPU mode with the instruction set on SSE and AVX for an hour each. Repeat with the Memory mode, it also has an SSE and AVX option. Then do 3D Standard for an hour and VRAM for an hour. This should help you find which component is causing instability. PS, 218 watts under load is fairly high for a 13600K. Either your chip is overclocked or you are running an old BIOS version which uses too much voltage. This is known to damage 13th/14th gen chips. Answer from DZCreeper on reddit.com
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Reddit
reddit.com › r/buildapc › 100 degrees c temps in occt cpu stress test, should i be concerned?
r/buildapc on Reddit: 100 degrees C temps in OCCT CPU stress test, should I be concerned?
May 10, 2025 -

Troubleshooting Help:

What is your parts list? Consider formatting your parts list.

CPU: i5-13600KF

CPU cooler: Thermalright Peerless Assassin

RAM: 32GB DDR5

Motherboard: MSI PRO Z790-P WIFI

GPU: XFX RX 6950 XT

PSU: Corsair 850x (2021) 80 plus gold certified

Storage: Samsung 980 2TB NVMe SSD, Samsung 850 evo 500GB SSD, 1TB 7200 RPM HDD

OS: Windows 11

System BIOS: A. 70

Describe your problem. List any error messages and symptoms. Be descriptive.

I was playing Deadlock on the recent patch and at some point, after about 5 minutes in game, my PC crashed to a blank screen. I still had sound, but my fan (I believe GPU fan) was on full blast and I had to manually restart the PC. After restarting, my second monitor would not be recognized. I fixed this by disabling and re-enabling my graphics driver in windows settings. Now I'm running some tests to find out what happened, and while running OCCT I noticed some high temps under the load from the test. I have screenshot here of the test while it was running. I ran it for a little over 15 minutes with no crashing or issues. What could be causing the crashes? And are these temps cause for concern?

List anything you've done in attempt to diagnose or fix the problem.

Furmark and OCCT tests

Post relevant photos of build/parts here.

Provide any additional details you wish below.

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Reddit
reddit.com › r/occt › is it normal during cpu test duration the temperature to be at 100c?!
r/OCCT on Reddit: Is it normal during cpu test duration the temperature to be at 100c?!
September 8, 2024 -

hi , first of all im new in overclocking and stress testing . Secondly I'd like to know if its normal that cpu/cpu package to be at 100c for the whole duration i have set?! .

P.s : If it helps I have starforge voyager elite 2 , and set the cpu fan profile to MSI ultimate and cpu core to be 5.7 GHz with 1.45 voltage overwrite mode .

Thank you

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Reddit
reddit.com › r/buildapc › 13900k-water cooled 100c in occt cpu stress test
r/buildapc on Reddit: 13900k-Water cooled 100C in OCCT CPU stress test
September 18, 2024 -

Hello all, I recently purchased an open box 13900kf/4090 Bitspower water cooled gaming pc from microcenter for $1900 USD. I was planning on building on the am5 platform but the deal was too good to pass up.

In order to make sure my CPU is a healthy 13900kf I’m in the process of running a stress test on OCCT. Immediately upon starting my temps jumped to 100c and then settled around 90c. No errors are detected. I’m coming from a 7800x3d which was a cool 75c in the same test. Is this just how hot the 13900k runs or is there a larger issue at hand here? Thanks in advance for the help!

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Reddit
reddit.com › r/buildapc › 100c cpu temp in stress tests, should i be concerned?
r/buildapc on Reddit: 100C CPU temp in stress tests, should I be concerned?
January 26, 2024 -

I've had my PC for a little over a year (current build list) and performance has been pretty good, hasn't blown me away and I haven't done any OCing (in fact undervolted at one point), but it's been alright. A couple of weeks ago I decided to add a second fan to my CPU cooler (NZXT T120) just to help with cooling a bit and also reapply thermal paste. Shortly after I played the game The Finals for the first time and at some point I noticed it was COOKING my CPU (core temp reaching 100C) and at some point, my PC just shut off because I guess it got too hot. Other games I've played since then haven't given me issues (max temp I've seen is 85C) but they haven't been too intensive of games (ex: Farm Sim, TF2, and Golf It). Also, idle temps are completely normal, around 45C. I decided to run a stress test on OCCT to see if it was just a problem with The Finals or a larger issue. My knowledge of PCs is fairly surface-level, I know how to build them and that's about it, so I'm not sure how to interpret the results. I ran a 5-minute test and the whole time temps were about 100C, power draw was around 180W, P-core clock speed of around 5000Mhz, and E-core clock of around 3900Mhz. Once the test was finished temps immediately went down to around 55C. Are these results indicative of a problem? And if so, should I reapply thermal paste or try a new cooler? One thing I'm a little confused about is why the P-core clock speed showing 5000Mhz while my CPU has a base clock of 3500Mhz, does that mean it's OCed or am I just fundamentally misunderstanding what these speeds mean? Here are some pics of my PC in case it helps to see my flow (pretty sure my case flow is pretty standard):

https://imgur.com/D5uEVDi

https://imgur.com/1x3EW7W

https://imgur.com/MygOuEl

Any help is appreciated, thanks!

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Reddit
reddit.com › r/overclocking › sos. why is my cpu over heating to 100°c?
r/overclocking on Reddit: SOS. Why is my CPU over heating to 100°C?
May 16, 2020 -

Even after overclocking my 3.5ghz i5 4960k to a "safe" clock speed of 4.2ghz at 1.2 volts, the temperature just bolts up to 100°C while running a stress test (OCCT) with a CPU monitor (HWMonitor). Nothing else was running in the background.

I then turned off any form of overclocking, including Intel's "turbo". I redid the test and the results were exactly the same, the temperature hit 100°C after roughly 1:30 mins of a OCCT small data set test.

I've tried:

  • Opening the side of my case completely.

  • Cleaning all the dust out from the inside of my PC.

  • Replacing thermal paste and making sure of a correct application. (It was actually thermal grease, does that make a difference? On the packet it's stated use was for a CPU.)

  • Making sure the heat sink is firmly attached to the CPU, yet not over tightened.

However, I am still facing this stressful problem of an unusually high CPU temperature even without being under load . If anyone has any idea whatsoever for how I might go about fixing this problem I would greatly appreciate the input :)

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Reddit
reddit.com › r/overclocking › occt fails on cpu+ram but passes individual tests?
r/overclocking on Reddit: OCCT Fails on CPU+Ram But Passes Individual Tests?
November 20, 2024 -

So as the titled states. I'm trying to figure out what is causing my games to crash.

I'm using basic OC (just using XMP).

I tried OCCT on extreme for CPU. Ran 1 hour no issues detected. I did the same for ram,1 hour no issues detected. I ran the test with CPU+Ram and it failed after the first 8 minutes.

Can someone explain how this is possible? How does individual tests show no issues but when doing them combined shows issues?

I get that normally want to run these tests for longer but again CPU+Ram tests failed after 8 minutes, I went 10x the time on individual tests and they dont fail.

*EDIT*
After more troubleshooting I found the issue. It was related to having Enhanced Turbo Boost enabled. I think the combo of XMP OC Plus Enhanced Turbo was pushing it just over the edge of a stable basic OC. I left normal Turbo Boost enabled but disable Enhanced Turbo Boost (under advanced CPU options) and all my issues disappeared. I was able to get a stable XMP 6000mhz OC on memory at 5.5GHZ on the CPU and it passes all tests and zero crashing issues in games.

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Reddit
reddit.com › r › OCCT
OCCT - Help, Feature requests, Bug reports,...
September 28, 2020 - Welcome to r/OCCT, the subreddit dedicated to OCCT, the all-in-one stability checking tool that is heating your CPU/GPU/Memory/PSU since 2003. Come talk about OCCT, bugs, overclocking, feature requests,...
Find elsewhere
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Reddit
reddit.com › r › overclocking › comments › en7xwb › 9700k_49_stock_occt_without_avx_100c
r/overclocking - 9700K 4.9 stock occt without avx 100°c !?
January 13, 2020 -

Hello guys, my 9700K reach 100° under OCCT and so start to throttle to 4.5/4.6

-msi Z390 tomahawk

- Artic freezer 13 cooler, yea i know it's far from the best for a 9700K but it's still a big cooler.. i'm not doing OC except turbo on all cores and the cooler is given for 200W and my cpu seems to use 180W max according the stats on hwinfo and occt.

- ambient temp of the room is about 10-15°c

-thermal paste is ok i'm not that noob, i'm used to build pc for 2 decades

i have only set up the bios to have turbo (4.9ghz) on all cores i have not touched other settings

Maybe the cpu voltage seems a bit high? it's auto so the motherboard adjust itself??

looking for a solution without replacing the cooler for now..

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Reddit
reddit.com › r/pcmasterrace › is occt good for checking stability of a gpu?
r/pcmasterrace on Reddit: Is OCCT good for checking stability of a GPU?
July 3, 2024 -

I found a 1080ti for a pretty good price of $130, albeit the seller mentioned that the VRAM is bugged in the 1080ti but underclocking it by -700mhz prevents all the bugs. Would OCCT for 1 hour be a good stress test to check that the card is stable? The seller did other benchmarks like Furmark and 3DMark and they seem good, but I'd still like to test OCCT.

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Reddit
reddit.com › r/overclocking › how reliable is occt for a stability test?
r/overclocking on Reddit: How reliable is OCCT for a stability test?
February 6, 2025 -

Hello, I have a few questions about OCCT as a stability test. How reliable are these tests? I was testing my GPU overclock using the 3D Adaptive "extreme" test, testing various overclocks. I set +200 on core clock and +1500 on memory clock in MSI Afterburner. Other benchmarks and games were always stable but as soon as I ran the OCCT test it showed me a lot of errors. So I decreased core clock to +150 and left memory clock at +2000 and let it run for another half hour. This time I had no errors. Does this mean that my first overclock despite being stable in games was indeed NOT stable? And does that mean that my second overclock now should be in fact stable as there were no errors?

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Reddit
reddit.com › r/overclocking › occt vs aida64 - which stability report you would choose?
r/overclocking on Reddit: OCCT VS AIDA64 - Which stability report you would choose?
March 11, 2025 -

Now as per subject, I have been using both heavily to test my PBO settings stability. There were 2 scenarios i encountered, as below:

  1. CO values at -30, Scalar set at 5x, +200mhz - OCCT test passes with no errors while AIDA64 crashes immediately

  2. Now i am trying to find AIDA64 stable with CO values set at -18, Scalar set at 3x, +200Mhz - AIDA64 and OCCT stable

The question is, while OCCT being revered for many years as a go to stability testing SW, i noticed recently many suddenly jumping on AIDA64 stability. I mainly do gaming on my PC, and CO -30 value that passed OCCT test thus far never crashed, no errors thrown while gaming or simply watching videos or browsing. Also to note, CO -30 or -18 value does not have any impact on my idle temps or stress testing temps as both values gave me an identical temp values (average temp at stress testing stays at 80c, idle at 44-45c and gaming average is 63-65c) and i am on Kraken 360 AIO and room ambient is at 24c. I know many here recommending 3-4 tools for thorough stability tests which probably on enthusiast level to get the absolute min-max settings but as an intermediate level OC'er, i just need "stability" that does not crash or weird issues on my usage. I believe even with min-max settings on OC will give some sort issues down the road as the SW and usage varies over time and not to mention some of the games might utilize different parts of CPU/GPU and might need to change the OC settings. So, while many would say scenario 2 is the best since CO -18 is stable on both, why not Scenario 1 since OCCT is trusted tool for many years? Thanks for your insights OC'ers!

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Reddit
reddit.com › r/overclocking › what is the general consensus on occt's effectiveness?
r/overclocking on Reddit: What is the general consensus on OCCT's effectiveness?
September 14, 2020 -

I can run this for 12 hours but prime95 crashes the pc after not even a minute. Since I basically just game I haven't had any issues with this oc yet. Do you think this can be counted as 'stable' when I'll never hit the insane current and general power draw of something like prime95 because it's literally just for games and web browsing? Or do you think everything has to pass hours of prime95 small FFTs? What requirements do you think are appropriate for for which usecase?

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Reddit
reddit.com › r/overclocking › understanding occt
r/overclocking on Reddit: Understanding OCCT
May 9, 2024 -

Can someone please explain why am I crashing on the CPU test with small dataset with all cores no matter the LLC and voltage?

Started to manually tune my r7 5700x, getting to 4.8GHz, no BSODs, games running, cinebench results (R23) satisfying at around 16500, so once I started decreasing voltage I'm now down to 1.3v drooping to 1.275-1.28v (LLC lv3) and it's passing everything except all core small dataset stress test.. Currently cycling cores with small dataset for 10 mins now, no errors so far. LLC LV2 with 1.325 set voltage gave 1.269 in cinebench but it crashed, 1.3 with llc 3 gives 1.275 and its not crashing.

So am I supposed to make it droop more? Or is it okay to just use small data set for single core and cycle them and use all core for medium/large dataset test?

Set parameters are small/extreme/variable/AVX2.

Motherboard I'm using is ASUS X470 prime pro, cooling the CPU with NH D15

I assume it shutdowns on account of thermals, since I can start the test with 8 threads fixed but once it reports close to 95° it just shuts down.

Is that a realistic workload, if thermals are the only problem and I KNOW I will never hammer the CPU with such a workload in real life, is it fine to ignore that test, or just to test up to a certain amount of cores?

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Reddit
reddit.com › r › AMDHelp
The AMD Help subreddit.
August 7, 2015 - Setting the maximum frequency to what my card was allowed, which based on the make and model I got from the manufacturer and a reboot solved the problem. The card runs fine and the temps are no where near 100C.