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OC unstable in LoL while stable in Unigine/BF/CS/Crysis (GTX 980)

post #1 of 12
Thread Starter 
Hey,
I have a GTX 980 and overclocked the card to around 1500 MHz. I can run Unigine Heaven or Crysis for hours without problems.

BUT when I play LoL I will get a driver reset within 5 minutes, how is that possible and does anyone know how I can fix that?
post #2 of 12
Not sure how Nvidia Overclocks work but i would imagen with LoL the card is not running full blast. There might be some problem with low voltage and high clocks due too low GPU usage. Have you tried to run V-Sync ON?
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Ishimura
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post #3 of 12
Thread Starter 
That is true, the card won't even boost at all (running at non OC clocks).
Enabling VSync does not help :/
post #4 of 12
Thread Starter 
Ok I found out, that my card voltage goes lower @stock speed when I apply a higher core clock on my card with Afterburner.

Standard: 1.0430 @ 1265.6 MHz
Afterburner:+50 MHz: 1.018V @ 1265.6 MHz
Afterburner +100 MHz: 0.9870V @1265.6 MHz

I think this is the reason for the problem, LoL will run at default core clock but the card won't apply the usual 1.0430V to the card...
Edited by Geicher - 1/10/15 at 12:50pm
post #5 of 12
it's a most likely a low usage crash that's on some 9xx. there are 4 fixes

turn on kboost when gaming low util games
turn OFF vsync, let the game run at like 400fps (didn't help for me cause card would still be low usage)
use oc guru 2 to oc the card and do the same settings PLUS minimum offset by 0.1v
go into your bios and change p00. p05 to 1.1v minimum

downsides, kboost is around 60w idle, up from 15w stock, idle temp goes up by 5-10C
vsync, doesn't work for all low util games
oc guru 2, mysteriously has 10-15% of your cpu usage, afterburner is 3%
bios flash, feels scary(?), flash at own risk.

I tried all these and ended up flashing the minimum voltage along with my max stable oc with 1.3v unlocked
hope this helps, i'm surprised there isn't a thread or sticky on this.\

MOST IMPORTANTLY, hope this saves ur elo biggrin.gif
post #6 of 12
Thread Starter 
Thank you so much for your detailed answer thumb.gif
I will consider flashing my card too smile.gif
post #7 of 12
I have different cards, but ran into the same problem. It was the cards going into their low voltage state. I downloaded MSI Afterburner and turned ULV off and not had problems since. It also let me get a higher overclock. 1200 core and 1400 memory. xgunnas is right that game does not demand enough to make your card come out of ULV but can pull just enough with kreep and all to make it unstable if overclocked.
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post #8 of 12
Thread Starter 
What is ULV and how can I disable it?
post #9 of 12
Why not just reset your OC before playing LoL? Seems much less of a pain than flashing a bios. Just hit the reset button in Afterburner and then click profile 1 when you want to play anything else.
 
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post #10 of 12
ULV is ultra low voltage. Its called many different things by the different company's but really its just a power saving feature. If you are using MSI afterburner there should be an option in the settings, though you are using a different card and I am unsure of the settings for your card in afterburner.
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Hard DriveOptical DriveCoolingOS
samsung 840  LG Thermaltake Extreem 3 Water Cooler Windows 10 pro 
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Asus VG236H 23" Razor EVGA Super Nova 850 Corsair 200R 
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Razor Mamba Old Stereo  
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Intel Core i7 720 QM ATI 5870M seagate ssd Sager solid copper heatsinks 
OSAudio
Windows 8.1 Pro Mine 
CPUMotherboardGraphicsRAM
955 be gigabyte ud3 7870 Ghz g-skill 8 gigabyte 
Hard DriveHard DriveOptical DriveCooling
western digital RED ADATA SSD LG Tower from local reatailer 
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