GPU Overclocking issue

David Kushnir · May 7, 2017

I just got recently a new GPU GTX 1080 ti and tried to play a little with the OC and it seems my card cant get OC almost at all, I got around like +30 to the core and thats it anything above that instant crash.
A few hours later after I got to the "sweet spot" I ran annother benchmark and the test froze a few times and I had like blinking green pixels all over the screen like crazy blinking and then my computer froze that happend even after I double checked that it was stable before and now its going all crazy can anyone explain me why is this happening..?
Is my card that bad?

*PC specs*
Windows 10 pro, Video card: gtx 1080 TI AORUS XTREME EDITION, Processor: intel core i7 7700k, Motherboard: msi z270 m5, RAM: corsair vengeance DDR4 3000 mhz 2x8, storage: one ssd 150gb one ssd 500gb and one hdd 1tb.

Thank you for your time!

cosmoji · May 7, 2017

you may need to be stepping up the voltage along with the clock to support the extra power need. if you're using something like afterburner you will be safe working with the restrictions of the sliders. overclocking takes some practice to know what will and will not work, and then time to fiddle with each individual card as they're all different. its also entirely possible that your card cant reach much of an overclock beyond the factory settings. i've seen a lot to that effect with 1080 ti's, that they rarely reach +50, most being quite a bit less.

also see you mention green pixels, or atifacts. if they dont go away then you need to step down the overclock anyway to get rid of them.

remember that they card you purchased is already overclocked from the factory and those factory settings will work properly. going above and beyond that is luck as to how much you'll get.

David Kushnir · May 7, 2017

cosmoji :

you may need to be stepping up the voltage along with the clock to support the extra power need. if you're using something like afterburner you will be safe working with the restrictions of the sliders. overclocking takes some practice to know what will and will not work, and then time to fiddle with each individual card as they're all different. its also entirely possible that your card cant reach much of an overclock beyond the factory settings. i've seen a lot to that effect with 1080 ti's, that they rarely reach +50, most being quite a bit less.

also see you mention green pixels, or atifacts. if they dont go away then you need to step down the overclock anyway to get rid of them.

remember that they card you purchased is already overclocked from the factory and those factory settings will work properly. going above and beyond that is luck as to how much you'll get.

I see... Thank you.

David Kushnir · May 7, 2017

cosmoji :

you may need to be stepping up the voltage along with the clock to support the extra power need. if you're using something like afterburner you will be safe working with the restrictions of the sliders. overclocking takes some practice to know what will and will not work, and then time to fiddle with each individual card as they're all different. its also entirely possible that your card cant reach much of an overclock beyond the factory settings. i've seen a lot to that effect with 1080 ti's, that they rarely reach +50, most being quite a bit less.

also see you mention green pixels, or atifacts. if they dont go away then you need to step down the overclock anyway to get rid of them.

remember that they card you purchased is already overclocked from the factory and those factory settings will work properly. going above and beyond that is luck as to how much you'll get.

BTW I heard that I need to put hte GPU voltage up to 100% its a pascal thing can you explain me this please?

cosmoji · May 16, 2017

from what i've read, pascal doesnt really like a big voltage change, but my most recent experience is dabbling with my 970s. i would say up your clock until you get some instability, then back it off, try upping the voltage like 20, and start walking the clocks up again until you get unstable again. eventually you'll reach that "sweet spot" you've mentioned where it doesnt help anymore. at this point id step your clock back like 5-10, and see if it stays stable under normal use for awhile. like a few weeks.

yes this means a lot of testing, its unfortunately how you do overclocking. theres no magic formula that will max every card with one change because all cards even the same product are different. and even then once it seems good, you could get oddities months down the road. most likely just an artifact or something though if its stable that long.

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GPU Overclocking issue

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