If GPU hits 100% usage stress test crashes. No other limiting factors. Why?? - Overclock.net - An Overclocking Community

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If GPU hits 100% usage stress test crashes. No other limiting factors. Why??

 
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post #1 of 6 (permalink) Old 02-04-2019, 11:40 PM - Thread Starter
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If GPU hits 100% usage stress test crashes. No other limiting factors. Why??

So I'm dialing in my 24/7 overclock as I've already found my max benching settings. Now just something I can use for long gaming sessions...however.

Running 3d mark stress tests if my GPU hits 100% usage after a while it instantly crashes the test. Looking at afterburner usage chart you can see the instant it happens. Doesnt matter if 1080p or 4k test.

Thermals aren't an issue. Under 40c on water.
Voltage isn't an issue. Running under the 1.093v cap.
Power limit isn't an issue. My gpu has 150% limit and only using 100-130% in these tests.
Power supply is 1000w and very new so shouldnt be the cause. Has been fine with 9900k and 1080ti pulling 650w alone

So how can usage be the cause? It makes no sense...is it trying to over calculate by going past it's maximum capacity so an error occurs and crashes?
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post #2 of 6 (permalink) Old 02-04-2019, 11:49 PM
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The quality of the PSU is often more relevant than how much power it's rated for but I doubt it would be the cause anyway.
Also you said "after a while" and "instantly" together which doesn't make sense...I'm not a grammar Nazi but that's confusing.


Do you have this issue at any clock speed?

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post #3 of 6 (permalink) Old 02-05-2019, 12:34 AM - Thread Starter
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Quote: Originally Posted by white owl View Post
The quality of the PSU is often more relevant than how much power it's rated for but I doubt it would be the cause anyway.
Also you said "after a while" and "instantly" together which doesn't make sense...I'm not a grammar Nazi but that's confusing.


Do you have this issue at any clock speed?
Sorry I should have worded it better. After a while it hits 100%. For 5 mins odd usage sits at 98-99%.

Then it hits 100% for a second and instantly stops the stress test.

Only at higher clocks it seems but I'm struggling to get my head around why the usage causes the crash

Power supply is corsair hx1000 which is either titanium or platinum. There is probably better psu but it's far from low quality
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post #4 of 6 (permalink) Old 02-05-2019, 01:07 AM
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Quote: Originally Posted by Jaz11 View Post
Sorry I should have worded it better. After a while it hits 100%. For 5 mins odd usage sits at 98-99%.

Then it hits 100% for a second and instantly stops the stress test.

Only at higher clocks it seems but I'm struggling to get my head around why the usage causes the crash

Power supply is corsair hx1000 which is either titanium or platinum. There is probably better psu but it's far from low quality
like it's unstable?

whats higher clocks? looking at the 1080ti owners thread 1.093v can net a clock from 1950 to 2113; though the latter was using a chiller (12-14c).

if you can, would you take a snip w/windows snipping tool w/AB and or GPU-Z running the sensors? like so:
Click image for larger version

Name:	Capture.PNG
Views:	4
Size:	61.9 KB
ID:	251608

also, same drivers i assume?

edit:
on the PSU thingy. yes thats a fine enough PSU w/o issue. however, you may have better stability (esp at higher speeds) using two cables, one to each connection, instead of one cable daisy chained - if you do.
you didn't mention it, but i thought i'd put that out there.

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Last edited by looniam; 02-05-2019 at 01:14 AM.
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post #5 of 6 (permalink) Old 02-05-2019, 03:40 AM
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I think it's not stable bro. If it doesn't happen at lower speeds then crashes under heavy load with a higher speed...probably not stable.
I find that Heaven is really useful for mild stress because you can use other software on top of it in windowed mode and you can walk the camera where you want and render the same spot forever. If you watch your frame rate without moving the camera you can also bump your ram speed to find the max OC on that. Your framerate will start dropping at some point, I set around 30-50mhz behind that point.
Heaven won't get you your max 100% stable core speed but neither will any of 3dmark's stuff, somehow actual games running full tilt are often much harder to pass. I'll find my Heaven max OC then set the core 20mhz or so behind that then run a game.

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post #6 of 6 (permalink) Old 02-05-2019, 04:15 AM
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Quote: Originally Posted by white owl View Post
I think it's not stable bro. If it doesn't happen at lower speeds then crashes under heavy load with a higher speed...probably not stable.
I find that Heaven is really useful for mild stress because you can use other software on top of it in windowed mode and you can walk the camera where you want and render the same spot forever. If you watch your frame rate without moving the camera you can also bump your ram speed to find the max OC on that. Your framerate will start dropping at some point, I set around 30-50mhz behind that point.
Heaven won't get you your max 100% stable core speed but neither will any of 3dmark's stuff, somehow actual games running full tilt are often much harder to pass. I'll find my Heaven max OC then set the core 20mhz or so behind that then run a game.
Indeed. I started undervolting my 1080TI. It was stable in Heaven and 3D mark and I played Assassins Creed Odyssey for 2 weeks without problems.
Yesterday I started playing BF V and I crashed 5-10 minutes into the game. I lowered my clock with 15mhz and I could play all night long. Some games just put more stress on the GPU than the others.

@TS: Lower you OC by 20-40mhz and see if you're still crashing. If you crashing is solved, then your OC was a little too high.

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