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post #1 of 15 (permalink) Old 06-15-2019, 09:51 AM - Thread Starter
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Unique power supply stress test discovered

I've stumbled across a PSU stress test combo that can be very useful in some cases. Finding it let me fully resolve an intermittent problem I was having.

I was exercising a new RTX 2080ti by running Furmark's "GPU Stress Test" in a 1366x768 window with 8X MSAA. The PSU was a high quality but very old BFG 800W unit, which had been powering a GTX 1080ti for 6+ months with no problems.

All was good until after a week or so the PC did an instant and total power-off, requiring wall power to be cycled. These shutdowns became more frequent, always when I ran some other app along with Furmark. It was likely that a PSU weakness was being exposed, but I couldn't rule out an issue with the new GPU. Unfortunately these crashes remained unpredictable and non-repeatable.

Then I happened to try O&O Software's free "ShutUp10" utility (along with Furmark). Nothing happened during normal use of this util until I dragged the right-side scrollbar down. Then the PC instantly shut down - and this was exactly repeatable over three or four more tries.

That convinced me that the problem was with the PSU, not the graphics card. I didn't think to try the 1080ti for comparison (...) but went ahead and installed a new Corsair HX1000 PSU, set for 'single rail' 12V. That fixed things - no more shutdowns with ShutUp10 nor with several taxing games running along with the Furmark window.

And note this: with the new PSU, when I drag the ShutUp10 scrollbar, I hear ticking noises from the machine. This only happens if Furmark is also running. I'm guessing that these sounds are the result of current spikes impacting the PSU's reactive components, and that the old BFG's filtering was no longer sufficient to prevent the transients from triggering a protection circuit.

I've now also tested Furmark and ShutUp10 together on two other PCs having a GTX 1070 and Corsair 500W and 600W power supplies. I get the same ticking sounds with these, but no shutdowns.

So it looks like these two apps together somehow create significant PSU transients. They would be useful if you suspect a PSU is failing but want proof, given that replacing one is a chore at best.
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post #2 of 15 (permalink) Old 06-15-2019, 09:58 AM
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Hope it was the new HX1000 and not the old HX1000
1000 watts is massive overkill by the way

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post #3 of 15 (permalink) Old 06-15-2019, 10:01 AM
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A power virus plus that puts an extremely unrealistic load on your components plus another program causes issues? Whodathunk.

Stop using Furmark.

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post #4 of 15 (permalink) Old 06-15-2019, 10:57 AM
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Quote: Originally Posted by The Pook View Post
A power virus plus that puts an extremely unrealistic load on your components plus another program causes issues? Whodathunk.

Stop using Furmark.
Sweeping the problem under the rug doesn't make the problem go away.

@OP, overcurrent protection was kicking in with your BFG power supply. Thats why you had to completely power cycle the PSU before it would let you turn it on again. If you tick a paper click into a 12v pin and another in a ground pin and turn on the PC, it'll do the same behavior.

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post #5 of 15 (permalink) Old 06-15-2019, 11:20 AM
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Quote: Originally Posted by The Pook View Post
A power virus plus that puts an extremely unrealistic load on your components plus another program causes issues? Whodathunk.

Stop using Furmark.
While Furmark isn't usually recommended to be used, it DID help the OP prove that his old PSU was dying. So it did its job for its intended purpose--stress testing.
While furmark is the prime95 for GPU's, both prime95 and furmark, when used properly, can help expose borderline or flaky hardware. That's different than using prime95 (in AVX virus mode) or furmark to determine if your high overclock is stable or not.

I'm with the OP on this.

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post #6 of 15 (permalink) Old 06-15-2019, 12:39 PM
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personally i find kombuster fuzzy dougnut combined w/prime95 maxes out my components more than anything.

thats my PSU stress test.

nvidia drivers get in the way w/furmark.

sorry but, it is hard to believe a simple GUI such as 0&0 causes any power stress - its just a GUI. correlation doesn't equal causation.

Remember the golden rule of statistics: A personal sample size of one is a sufficient basis upon which to draw universal conclusions.
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Last edited by looniam; 06-15-2019 at 12:50 PM.
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post #7 of 15 (permalink) Old 06-16-2019, 02:45 PM - Thread Starter
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@Pook and looniam: It's not clear whether you're incapable of understanding what I explained, or just don't bother to read things before kicking out an arrogant, dismissive reply. Either way, while that does boost your post count it isn't doing the forum any good. Just FYI. I'll check back in another ten years and see if things are back to where they were.

Last edited by Arbie; 06-16-2019 at 02:51 PM.
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post #8 of 15 (permalink) Old 06-16-2019, 03:05 PM
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thanks for your valued contribution, I'm sure it'll reform stress tests everywhere.

that the kind of response you were looking for?

sorry, I guess

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post #9 of 15 (permalink) Old 06-16-2019, 03:16 PM
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Quote: Originally Posted by Arbie View Post
@Pook and looniam: It's not clear whether you're incapable of understanding what I explained, or just don't bother to read things before kicking out an arrogant, dismissive reply. Either way, while that does boost your post count it isn't doing the forum any good. Just FYI. I'll check back in another ten years and see if things are back to where they were.
maybe check your own reading comprehension. then your "testing" method. you have at best a theory. what have you done to confirm it? used a killawatt meter? mulit meter? oscillator? anything?

nope. sorry if your ignorance about a program being pointed out caused you so much butt hurt as a simple inquiry causes you to be so defensive.

if that is really what you believe and can't handle criticism of a flawed test - then you sir are the one who isn't doing this forum any favors.

good luck with that.

Remember the golden rule of statistics: A personal sample size of one is a sufficient basis upon which to draw universal conclusions.
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Last edited by looniam; 06-16-2019 at 03:20 PM.
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post #10 of 15 (permalink) Old 06-16-2019, 05:05 PM
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So, the question is, what the heck is "ShutUp10" doing?

Obvious plot twist?

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