Games never push your GPU to the same degree OCCT would, but you could still encounter instability issues from time to time. Loads are very different between games - while it would run fine in 9/10 games, the tenth game it starts to crash constantly. Answer from Jaba01 on reddit.com
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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Games never push your GPU to the same degree OCCT would, but you could still encounter instability issues from time to time. Loads are very different between games - while it would run fine in 9/10 games, the tenth game it starts to crash constantly.
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I’ve been overclocking my 5080. Using afterburner I passed OCCT, Furmark, 3DMark at +460 / + 2000. I played apex legends, cod and cyberpunk with no issue. I played Fortnite and that’s when the crashing started. I’m now down to 440/500 with 108 on power limit.
Reddit
reddit.com › r/occt › whats the most realistic cpu stress test?
Whats the most realistic CPU stress test? : r/OCCT
October 30, 2020 - You don't want to test your CPU for one week to have a chance to find an error when you can do the same in an hour ? That's the basic idea. OCCT's goal is to find errors, and fast. To do so, it needs to generate a high load. You're blinded by the wrong idea that an unstable CPU is stable at lower loads.
Videos
Linus Tech Tips
linustechtips.com › computer hardware › cpus, motherboards, and memory
Is 2 hours of OCCT stress test ''stable OC''? - CPUs, Motherboards, and Memory - Linus Tech Tips
November 17, 2020 - Hello everybody, I'm currently working on overclocking my i7 10700KF and I have few questions. 1.Is 2 hours of OCCT (medium data) stable OC? 2.Should I set medium,small or large data when testing? 3.What is max temperature that I shouldn't pass with that CPU in OCCT? 4.Is there better stress test...
Reddit
reddit.com › r/overclocking › someone just told me i should run a stability test for an hour in occt
r/overclocking on Reddit: Someone just told me i should run a stability test for an hour in OCCT
August 9, 2025 -
I wanna know how much time i should run an stability test, I passed the 3 minutes stability test
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depends on the usage you will make. Normal use browsing and some tasks? 1h is more than enough Gaming 3-6 hours recommended server 24/7 hardcore usage? 12-24h run
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The reason you run it for so long is for temps to normalize. Because as they climb you pull higher and and higher voltage.
Ventoy
rtech.support › guides › how-to-use-occt
How to use OCCT | rTS Wiki
2 weeks ago - Its a stability testing suite as well as a excellent error checking tool that allows for stress testing (like that found in the HWInfo stress test guide) and as an added bonus, error checking within that stress test to ensure that the system/components are stable...
Overclockers UK
forums.overclockers.co.uk › hardware › overclocking & cooling
Is OCCT a good stability test? | Overclockers UK Forums
April 21, 2026 - In my experience I have had it catch errors that other tests did not, but the reverse is also true. If you want to ensure rock solid stability you would ideally use multiple tests. ... Have now run OCCT, Aida and MemTest86 with no errors, nice PBO negative values, am happy with the system.
Reddit
reddit.com › r/overclocking › occt stability test.
r/overclocking on Reddit: Occt stability test.
September 27, 2023 -
How long to run occt test or any kind of stress test. If pc passes occt, can it be confirm that there are no errors on the specific component
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I thought I was doing good with my OC relying on Prime95 (I would look for errors after an hour), but out of curiosity (I'm new to this BTW) I launched the OCCT stability test and my setup didn't last several seconds without errors. So I don't know but to me it looks OCCT is among the most objectively sensitive to computational errors out there. My example is 8600k I was trying to push to 5GHz with. Cinebench, Prime didn't show any problems to me, I thought I was doing fine, but OCCT wrecked it. I went back to the stock clock and climbed up again but this time testing stability with OCCT and turns out I was not even able to get to stable 5GHz with the voltage I'm comfortable with... I stopped trying at 1.450V. Ultimately I went down to 1.350V which so far gives me a stable 4.8GHz in OCCT (by which I mean 1 hour "CPU" test and 1 hour "Linpack" test without errors).
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occt is a nice test but not the only one to use if you want to test any oc. Always use more, it is a nice indicator for instability tho. Psu powerdraw tests always as long as you feel comfortable with. I would do 20mins to 3hrs on that personally but its your thing. Gpu tests around 5m-1hr or more, very up to what the oc is and what you want to do. If its a low oc and its almost certainly stable, then testing for 2hrs max not be time efficient for 1 slight oc. Same for cpu tests. Its very up to the situation. Only psu tests are always around 20mins to 5hrs to check absolute stability cause thats what many people like to do. Start low
Framework Community
community.frame.work › framework desktop
What tests should I run to check if everything is as it should be? - Framework Desktop - Framework Community
November 20, 2025 - Recently received my 128GB FW Desktop. And I was wondering what kind of tests I should run to sanity-check the hardware and make sure everything is behaving correctly. So far, I just kept monitoring the temps in HWiNFO while using the device, and everything seems fine, both when doing normal ...
OC3D
overclock3d.net › home › news › why occt has changed gpu stress testing and why furmark’s no longer good enough
Why OCCT has changed GPU Stress Testing - OC3D
November 25, 2025 - This makes fixed 100% loads like Furmark problematic for stress testing. Too often, overclocked GPUs that are “Furmark stable” can fail under gaming workloads, while idling, or when doing basic tasks like video playback. OCCT’s GPU tests approached GPU stress testing differently.
Reddit
reddit.com › r/occt › sufficient stability test settings?
r/OCCT on Reddit: Sufficient stability test settings?
September 14, 2023 -
Hey all.
Stability testing my 13600K OC/undervolt. Primarily use my PC for gaming but also occasionally use Handbrake to re-endcode video.
Would large files, extreme, variable, AVX2 for 24 hours be sufficient to test stability, or should I be running other tests/programs?
Also in case the developer is reading, thanks so much for a great utility.
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For daily OC stability I use Large AVX2 Extreme, and Small SSE Extreme. I run it for ~8 hours as a final test. If it hasn't thrown errors by then, it's very unlikely to happen after that.
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Honestly for stability i would just do the tests for 3 minutes at a time while you're adjusting the settings and then an hour at the max stable that's not throwing errors in those 3min intervals as a final test . My logic here is that computer power supplies are rated for power per hour so if it's stable for an hour it will stay stable. The theory hasn't failed me yet even if it's wrong lol. U can turn on alerts in hwinfo for whea errors at the very bottom to ensure ur safe too. Just right click total errors, click alert settings, click enable alerting, click if value >=, type in 1 for the value. Then check the play sound box and the display warning window box and you're good. U you can also stack this with the Nvidia control panel feature for Max background application frame rate and put it to 20 so that when you get a hardware info error the pop-up will automatically lower the frame rate of the app in the background which caused the error in the first place. Ive had my comp set up like thay for a few months now using that method and ive mever had a single error aside from when i was configurjng the initial overclocks and if i ever do have one hwinfo will catch it in realtime. Make it start up with windows so the possibibility of forgetting to open it is never there. Thats where the tests on occt draw the error readings from as far as I know. I wouldn't use the occct monitoring mode because it lowers performance in games and makes the OC negligible. I can also walk u thru all the other physical memory load and dimm temps, cpu voltage and temp, core distance to tjmaxx temp, tj max setting, ssd/HDD temps, GPU temp and voltage, and GPU hot spot temp alerts as well if u like to ensure ur completely safe all the time. You'll just transpose the same settings for those from the ones I went over earlier for the whea errors. Just lmk if u need any help. Cheers P.s. if u can't find the GPU core voltage setting, it's cus they have it in the hidden settings for some reason now lol
Overclock.net
overclock.net › home › forums › intel › intel cpus
Is OCCT Linpack testing a good measure of stability? | Overclock.net
Anything less than 4 hours (translates ... is not stable in my eyes. Unless and until you have $50 mobo (if that's even possible with i7) or really bad cooling, you should not worry about stressing the system. ... I ran OCCT v3.1 - CPU:OCCT, success (medium & large data set)! CPU:LINPACK, failed, error detected. So I give IBT a go with standard 1024MB, and everything is fine. Then I go for the very high which uses 4096MB ram, and failed. Should I suspect my ram? But I tested it with memtestx86 ...
OCBASE
ocbase.com › useCase
OCBASE/OCCT : Free, all-in-one stability, stress test, benchmark and monitoring tool for your PC
With OCCT, ensure that your powerful setup remains stable. Our comprehensive tests reveal hardware issues, ensuring your optimal performance settings match with reliability.
YouTube
youtube.com › watch
How to Use OCCT for Stress and Stability Testing | Test - RAM | CPU | GPU | Power Supply - YouTube
In this tutorial we will see how to install and use occt software for stability and stress testing of pc hardware components like ram, cpu, gpu , power suppl...
Published November 17, 2025
SharkGaming
sharkgaming.zendesk.com › hc › en-gb › articles › 10983243538962-Test-Your-PC-with-OCCT-Simple-Guide
Test Your PC with OCCT (Simple Guide) – SharkGaming Systems
March 10, 2026 - OCCT is a free program that can test whether your CPU, GPU, RAM, and power supply are running stable. The program stresses your computer and shows temperatures, voltages, and errors in real time, m...
Overclock.net
overclock.net › home › forums › benchmarks › benchmarking software and discussion
What are some stability tests to ensure that your newly built PC is running fine? | Overclock.net
March 1, 2021 - This is why gaming often reveals issues with supposedly stable setups...it can hit multiple subsystems. A few test suites try to function as system-wide combination tests and some are even pretty good at it. AIDA64's system stability tester is one of these, and is a good baseline for finding true power supply requirements. However, none of it's individual tests are particularly hard to pass, so I always follow up with a reduced thread count run of OCCT in combination with looped disc read benchmarks, looped 3DMark graphics tests, with some video streaming on a second display.
Overclockers
overclockers.com › home › forums › hardware › cpus › intel cpus
Stress test : what is "enough"? | Overclockers Forums
June 3, 2020 - It has the advantage of being a short, quick test that can help you get to an approximate max overclock without spending a lot of time. Once you find get to the point where you think you believe you have attained the max overclock on reasonable ...
Tom's Hardware
tomshardware.com › pc components › cpus
OCCT With Four Options - How We Stress Test CPUs
August 16, 2020 - OCCT offers a fairly challenging CPU stress test, which often gets overlooked. It might not generate the massive amounts of heat we measure under Prime95 with AVX, but it’s still a great choice for long stability tests.
SkatterBencher
skatterbencher.com › home › 7 ghz occt bronze stability certificate
7 GHz OCCT Bronze Stability Certificate - SkatterBencher
July 3, 2024 - An OCCT Stability Certificate is proof of having successfully passed a predefined set of stability stress tests. Once you pass the stability tests, you can review the run and relevant system monitoring information at ocbase.com.
Reddit
reddit.com › r/overclocking › which free software do you use nowadays to test stability of the system?
r/overclocking on Reddit: Which free software do you use nowadays to test stability of the system?
February 19, 2024 -
I am not able to be sure whether my RAM or my CPU is the problem
What do you use for testing?
Linus Tech Tips
linustechtips.com › computer hardware › cpus, motherboards, and memory
Occt stability test - CPUs, Motherboards, and Memory - Linus Tech Tips
September 28, 2023 - Occt stability test. How long to run occt test or any kind of stress test. If pc passes occt, can it be confirm that there are no errors on the specific component