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Reddit
reddit.com › r/occt › occt power test causes instant bsod
r/OCCT on Reddit: OCCT Power Test Causes Instant BSOD
May 28, 2022 -

A couple years ago I built a PC (info below) and it ran great for about 18 months before it started crashing under heavy load (Event 41Kernel-Power). Long story short the power supply was the problem (Corsair RM850x) but Corsair quickly replaced it and it's been working fine since. Fast forward a couple months to today it's happening all over again. This time around I stumbled across OCCT and decided to try it out, so I went to: Test/System/Power/Play with default settings (until cancelled and Auto). Soon as the countdown pop up hit zero I got a blue screen. Tried again, same thing. Reverted all overclock settings (and memory timings) to factory settings and tried once more, same. Only difference this time is the test ran long enough for my cooling equipment to roar to life before shutting down ( roughly 10-20 sec +/-). Anyway that's where I'm currently at, any ideas?

I've been building my own PC's for about 20 years and never had a power supply go bad on me once, let alone twice in one build. Is this sorta thing common?

Anyway thanks in advance for any help, I attached a screenshot of my PC specs as seen from within the OCCT app, thanks.

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Overclock.net
overclock.net › home › forums › components › power supplies
OCCT Power test crash | Overclock.net
August 30, 2025 - The overcurrent cuts power, so The whole machine will ‘turn off’ though. If it’s doing that overcurrent protection problems chance raises dramatically. To near 100%. If it‘s crashing and restarting the memtest may be the way. A BSOD generates a small file, which is why it’s called a mini-dump.
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Linus Tech Tips
linustechtips.com › the workbench › troubleshooting
Crashes During OCCT Power Tests - Troubleshooting - Linus Tech Tips
March 25, 2024 - Hello everyone, I'm encountering a particularly stubborn issue with my PC, leading to crashes under specific conditions, and after several diagnostic attempts, I'm seeking insights from this knowledgeable community. y system consistently crashes to a blue screen showing the Stop Code: CLOCK WATCH...
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Reddit
reddit.com › r/occt › need help interpreting some test results: power test crashes after a few minutes
r/OCCT on Reddit: Need help interpreting some test results: Power Test Crashes After a few minutes
December 4, 2022 -

TL;DR

Problem: (1) Frametime spikes frequent every few seconds, looks like microstutters in game. (2) Freezing and Non-BSOD crashes/resets at random times.

OCCT Results: All tests passed except power test, which leads to a non-BSOD crash in a couple of minutes and kernel power error 41 in windows events viewer.

Specs: At end of post

Need: Help :(

Hi all, I've built a new PC and I've been trying to figure out for the past few days what's causing some issues. I've attached the specs to the end of the post.

Issue 1: Frequent extreme frametime spikes (a 400ms spike followed by some 40-50ms spikes seems to be the most common), which manifests in micro-stuttering every few seconds in games. The game, say Cyberpunk 2077 or Hitman 1 (there's no way a game this old should cause stuttering right?), would start off fine, but after 30seconds to a minute of playing, this would start.

Issue 2: Frequent non-BSOD crashes that come to a pc restart, this would happen seemingly randomly, during both gaming and light web browsing.

I was down in the dumps for days, but in my darkest hour, my wonderful girlfriend found OCCT, and I've been using this to do some test.

The CPU test was first, and it instantly spiked to 95c and stayed around there. I was at first alarmed by this, but I think this is normal (?) The small dataset test passed through 10 minutes without other issues.

The 3D-Standard test, memory test, and VRAM test also finished through 10 minutes without any problems.

The power test would not pass. My pc would crash and restart after a few minutes on the power test, every time. I even tried everything with the integrated graphics and it still failed. Events Viewer shows a EventLog 6008 followed by a kernel power 41 critical error at the same time of the crash.

How would you interpret this issue? Does this mean the PSU has been the culprit of all of these issues? Might it be the power system in my house? (The house i'm in right now is very old.) Could the open-box gpu be defective?

PC Specs

CPU: 7700X

COOLER: Noctua NH-D15

MOBO: ASUS TUF X670E Plus Wifi

RAM: G.Skill DDR5 6000

GPU: Gigabyte Gaming OC 3080Ti (open box from newegg)

STORAGE: WD_Black SN850X

PSU: Super Flower Platinum SE 1000W

CASE: BeQuiet 500DX

Other things to note:

  1. In MSI Afterburner, the frametime spikes also coincide with voltage limit, power limit, and no load limit; not perfectly at the same time, but they seem sporadic when the frametimes are also spiking. Not sure if this means anything.

  2. I tried playing things with integrated graphics. No frametime spikes, but that could just mean the PSU isn't demanding as much power, right?

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Reddit
reddit.com › r/overclocking › bsod during occt cpu / power test
r/overclocking on Reddit: BSOD during OCCT CPU / Power Test
July 10, 2023 -

Greetings,

Here is my Setup :

  • Intel Core i9-12900KF (3.2 GHz / 5.2 GHz)

  • ASUS PRIME Z690-P

  • Corsair HX1200 80PLUS Platinum

  • Corsair Vengeance DDR5 64 Go (4 x 16 Go) 5200 MHz CL40

  • Zalman Alpha 28 Noir

I bought all this stuff few month ago, did all the build myself, including updating the BIOS, everything seems to be normal ! I was using some simple presets : All P-Core was set to 5.0, and all E-Core to 3.8, RAM was set to 4800MHZ, all other things like voltage were untouched ! For 2 weeks now, I have some strange BSOD, so i decided to test the stability of the Setup with some OCCT tests, i have clean Ram test but with the Power test, and i am getting a CLOCK_WATCHDOG_TIMEOUT in half a second when launching, it also crashed in CPU only test ! So i decided to reset my BIOS with default preset and all to "Auto", but by default it set up to 5.2 for P cores, so it's crashing almost instantly when the PC is booting, is this normal by any means ? I can get a very stable system for now, but by reducing drasticly either BCLK to 80 or Both E & P Core speed, but i highly doubt this is normal or intended, do you guys have any idea how to check if this is a faulty component, or maybe i have done anything wrong ?

Thank you for your time !

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Tom's Hardware Forum
forums.tomshardware.com › home › systems
Question - Constant BSODs and stress test crashes. At my wit's end | Tom's Hardware Forum
December 9, 2022 - I'm actually hoping it's the PSU. Rebuilding my pc with this custom loop is going to be an absolute fn nightmare (if the mobo or CPU is the culprit). It might be worth nothing that the power test in OCCT is the one which fails the quickest (always within 15 secs or so).
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Reddit
reddit.com › r/occt › pc immediately shuts down on power test
r/OCCT on Reddit: PC immediately shuts down on Power test
June 23, 2021 -

Hi all,

I've just downloaded OCCT today after trying to find the root cause to a PC crash/restart I've been having, and now OCCT causes my PC to immediately shutdown when running Power test.
I built the PC with all new components (expect from GPU which I have since replaced and still experience the issue).

PC Specs:

Case: Phanteks P400a
Motherboard: MSI Meg Unify X570
AIO: MSI MAG 360mm
RAM: Corsair Vengeance RGB Pro 32gb (2x16gb) DDR4 3600mhz (with 2 light enhancement kits)
CPU: AMD Ryzen 9 5900x
GPU: XFX Speedster MERC Radeon 6900XT (Black edition)
PSU: CORSAIR HX1000 Modular ATX PSU - 1000 W
GPU Support: UpHere (G276ARGB)
Storage:
Sabrent Rocket Plus 1tb NVME M.2
6TB HDD and my old SSD's (500gb + 250gb)

PC Crash/Restart:

My PC randomly restarts when playing COD Warzone. I don't play many other games but often working on the PC for 9-11 hours a day before playing games and never had any issues.

This has been happening since I built the PC in December, and has happened around 6-7 times now. It's really inconsistent as to when it happens and I've not been able to pinpoint it to an exact action/scene in-game.
There was a period since perhaps late March after I changed some settings (disabled power-saving mode & turned off automatic Windows updates), but has now come back and happened twice in the last week.

I received an event log for today's crash which was:
'Event 41, Kernal Power' - "The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly."

Following that information, I eventually found myself with a potential PSU issue which is where I discovered OCCT to perform some stability & stress tests, which is what's lead me here with my PC immediately shutting down when running a test.

The exact steps were as followed:

  • Downloaded & installed 'OCCT PERSONAL STABLE (x64) 8.2.1' from ocbase.com

  • Launched the application

  • Bit of navigation and research to figure out what I needed to run. No settings were changed.

  • Under the 'Test' page and 'Test Schedule' menu, selected 'Power'.

    • Instruction set = Auto

  • Selected the large red button to run the tests

  • Presented with a popup related to the Pro version and directed to a web-page to be able to continue to execute the test

  • Hit the red button again to begin the test

  • PC turned off

  • Waited patiently incase I missed a prompt/warning notifying me that the PC would turn off, but after about 5 minutes nothing happened

  • Tried to turn on the PC to no avail

  • Turned the power switch on the PSU off & back on

  • Tried to turn on the PC to no avail

  • Repeated power switch step whilst also unplugging PSU cable and then replugging

  • PC turned on as expected

If any one has the answer to the PC Crash/Restart issue then I'd happily propose to you, but mainly looking for advise and support on the OCCT issue and why it turns my PC off completely and why I have to unplug & plug PSU cable back in for it to turn back on?

Thanks in advance <3

Top answer
1 of 5
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This one's easy : a clean, instant shutdown on the power test is 99% of the time caused by a power supply that can't handle the load. Games don't load your components at 100% - sometimes it's waiting on the CPU, sometimes in the GPU, so things even out at a rough 50-70% usually ( depending on the game ). Sometimes you encounter conditions when the load will go higher - the scene to draw is simple, another process kicks in on your CPU, ... And this is when your PSU puts itself in safe mode as it detected that it couldn't handle the load. In short, you triggered a protection feature on your power supply because it can't handle the load. There're two ways of fixing this : change your power supply to a higher rated ( and known brand !) one. Another way of tackling this is to lower the power consumption of your computer : undervolting your GPU, undervolting your CPU, lowering their frequency in the process if not enough. It'll cost you some performance probably, bit at least you won't reboot. If you can afford it, I recommend changing your power supply, as it is, in my opinion, one of the most critical components of your computer. It's feeding every pricy component with power, and if it fails, there's a possibility it won't go down alone ( even if there're protections as you experience them here).
2 of 5
2
This is a dead ringer for a power supply issue... I am pretty active on the EVGA forums and Corsair power supplies not being able to deliver the advertised wattage or just having general stability issues is a fairly common problem. The issue started to show up around the launch of the 2000 series GPUs from Nvidia and than with the 3000 series launch it kicked into overdrive. Ironically the issue seems to be more of a problem with there larger more expensive "high end" PSU than there cheaper units. I believe the issue to be caused by one of two things or a combination of the two... A lot of the "higher end" PSU from Corsair including the one that you listed use a multi rail system. Without getting too technical and diving into this too far... Basically your PSU can output 1000 watts total, but since it is a multi rail PSU, lets say two rails, each rail can only output 500 watts total. If you exceed this 500 watt limit on a given rail the PSU will shut down for safety reasons. In some cases I have seen in person that the Corsair PSU just cant output there advertised wattage. It is my belief that Corsair was taking advantage of there consumer by advertising there PSU as being able to output at one wattage when the actual output capability was far less. For the most part consumers were grossly over estimating the size of power supply they needed so Corsair was able to get away with this for a long time. However when the 2000 series and 3000 series GPUs launched an actual need for these 1000 watt power supplies developed thus exposing that Corsair PSU could not deliver. It appears from looking at the Corsair website that your PSU has a switch on the back of it that will allow you to disable the multi rail functionality. Yours may or may not have this... If that is the case I would disable it and see if that resolves the issue. As far as balancing the load across the two rails you will NOT be able to do this as Corsair does not provide the consumer with the information needed to be able to do it. Even if the above corrects the issue I would advise getting either an EVGA or Seasonic PSU at some point in the future. I do not recommend Corsair PSU to anyone at this point...
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Reddit
reddit.com › r › buildapc › comments › jm1nql › bsod_and_errors_in_occt_power_test_for_psu_and
r/buildapc - BSOD and errors in OCCT Power test for PSU and Motherboard.
October 27, 2020 - Hi All. I am having issues with OCCT Power test showing errors instantly and a BSOD. What is the problem here? Could it be my PSU failing because I …
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Overclock.net
overclock.net › home › forums › components › power supplies
Occt power test instant crash | Overclock.net
July 31, 2021 - Cable extensions could be an issue. Even good ones add resistance and thus droop to the line. I just tried the power test in the newest version of OCCT on my usual system and it would crash immediately once, then run fine the second time, then crash again, then run fine.
Find elsewhere
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OCBASE
ocbase.com
OCBASE/OCCT : Free, all-in-one stability, stress test, benchmark and monitoring tool for your PC
With an interface offering multiple levels of analysis, from quick summary statistics to detailed comparative reports, OCCT highlights even the slightest difference. A CPU throttling down too much, a fan spinning too fast, memory timings badly configured, you’ll spot them all in a few seconds. ... AI training brings forth new challenges, particularly in terms of computing power. The latest dedicated GPUs are exceptionally powerful, yet lack 3D support, rendering the existing stress tests ineffective.
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Tom's Hardware Forum
forums.tomshardware.com › home › power supplies
Question - Failing PSU OCCT test (over 1200 errors/blue screen) | Tom's Hardware Forum
October 17, 2020 - Now, I haven't gotten a blue screen since then under NORMAL circumstances BUT, I wanted to be sure. So I downloaded the OCCT and did a stress test on anything. Surprisingly, my 5700 XT was fine. It passed both test with no problems. CPU was fine, RAM was fine but then I did the power test...
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Linus Tech Tips
linustechtips.com › the workbench › troubleshooting
New PC build BSOD under occt power / games - Troubleshooting - Linus Tech Tips
March 3, 2021 - https://linustechtips.com/topic/1311750-new-pc-build-bsod-under-occt-power-games/ More sharing options... Followers 1 · Go to topic listing Troubleshooting · 240hz makes the monitor glitch. Wolfftheholycheeseslayer · 12 minutes ago Posted in Troubleshooting ·
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guru3D Forums
forums.guru3d.com › home › hardware › general hardware
Possible hardware issue (ctd, bsod, errors in OCCT)? | guru3D Forums
May 30, 2022 - Dump ended at UTC: 2022/05/27 05:16:27, local time: 2022/05/27 07:16:27. Elapsed BugCheck duration 00012201ms Dump completed successfully. yesterday i disconnected pc from the power, connected it again, did factory reset of bios and turned on xmp profile again. and since then, no ctd, no bsod, no errors with OCCT tests.
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Tom's Hardware Forum
forums.tomshardware.com › home › components
Is this my PSU Failing? | Tom's Hardware Forum
October 16, 2013 - Ran OCCT PSU Test - BSOD in < 2 minutes. Attempted with 1 stick of ram (swapped them too when it happened again). Also Happened. Ran Furmark for 20 minutes no BSOD. Rand OCCT CPU benchmark, no BSOD. Only when I do the power supply bench or try to play games does this happen.
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Ten Forums
tenforums.com › bsod-crashes-debugging › 207893-any-bsod-experts-have-7-attached-here-just-month-7.html
Any BSOD experts? Have 7 attached here just from this month - Page 7 - Windows 10 Forums
October 29, 2023 - V2 Log here I redid the test, there were no problems, as pictured here in the results: no error detected. OCCT's 3D Adaptive testing There's Steady, Variable and Switch tests. I did the Switch one first and it froze my computer in under 10 minutes of tests and didn't crash to a BSOD for over 30 minutes, so I did a force reset.
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Ventoy
rtech.support › guides › how-to-use-occt
How to use OCCT | rTS Wiki
2 weeks ago - Online BSOD dump parser Hyde · A web editor and CMS for this wiki · Search CtrlK · Cancel · Section titled “What is OCCT?” · OCCT stands for Overclock Checking Tool. Its a stability testing suite as well as a excellent error checking tool that allows for stress testing (like that found ...
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PCPartPicker
pcpartpicker.com › forums › topic › 456389-occt-power-test-issues
OCCT power test issues - PCPartPicker
Here is the weird part, I replaced it with an open box 1200w RM1200x shift from Corsair and it works fine on the same simultaneous cinebench r23 and furmark stress test but I wanted to check for the psu stability. So I ran OCCT power test and my pc started getting errors after a few second, the test kept yelling ERROR ERROR ERROR, and the error counter was over 4 million (crazy right?) and then the pc rebooted just like before.
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Reddit
reddit.com › r › overclocking › comments › 14vwcko › bsod_during_occt_cpu_power_test
Reddit - The heart of the internet
July 10, 2023 - J'utilisais quelques préréglages simples : tous les P-Core étaient réglés sur 5.0, et tous les E-Core sur 3.8, la RAM était réglée sur 4800MHZ, toutes les autres choses comme la tension n'étaient pas touchées ! Depuis 2 semaines maintenant, j'ai un BSOD étrange, j'ai donc décidé de tester la stabilité du Setup avec quelques tests OCCT, j'ai un test Ram propre mais avec le test Power, et j'obtiens un CLOCK_WATCHDOG_TIMEOUT dans une demi-heure.