GPU memory clock spikes casuing artifacts

[Flowroro]

Hi guys, some weird issue today, my gpu memory clock randomly just spikes up from idle at 810mhz to 4000mhz, and then that causes a random artifact. if i keep it at 4000mhz all the time (meaning gpu under load) its perfectly fine?, its a fairly new gtx 1060, i have copper heatsinks on my vrams too, vram isnt overclocked at all. however i did recently get a custom cable extension recently but the artifact spikes didnt happen till now. my gpu mem clock never downclocked itself either before, wondering if anyones had the same experience? gpu isnt overheating either.

[WereCatf]

8 minutes ago, Flowroro said:

Hi guys, some weird issue today, my gpu memory clock randomly just spikes up from idle at 810mhz to 4000mhz, and then that causes a random artifact. if i keep it at 4000mhz all the time (meaning gpu under load) its perfectly fine?, its a fairly new gtx 1060, i have copper heatsinks on my vrams too, vram isnt overclocked at all. however i did recently get a custom cable extension recently but the artifact spikes didnt happen till now. my gpu mem clock never downclocked itself either before, wondering if anyones had the same experience? gpu isnt overheating either.

It could be an indication of unstable VRAM. Have you tried any heavier benchmarks on it, like e.g. Furmark and 3DMark and similar, if they show artifacting at any point?

[Flowroro]

Just now, WereCatf said:

It could be an indication of unstable VRAM. Have you tried any heavier benchmarks on it, like e.g. Furmark and 3DMark and similar, if they show artifacting at any point?

furmark, 3d firestrike/timespy, all benched with anything between +0 and +1000 mhz actually, and nothings wrong, its only when the vram random spikes from 810 mhz to 4000mhz or just any change in vram frequency in general, do i see artifacting, all other cases are perfectly fine....running furmark this second just to double confirm and nothing is wrong

[WereCatf]

1 minute ago, Flowroro said:

furmark, 3d firestrike/timespy, all benched with anything between +0 and +1000 mhz actually, and nothings wrong, its only when the vram random spikes from 810 mhz to 4000mhz or just any change in vram frequency in general, do i see artifacting, all other cases are perfectly fine....running furmark this second just to double confirm and nothing is wrong

That's quite odd. I mean, it obviously shouldn't be artifacting at any point at all, but if the artifacting only occurs during those clock-freq spikes, it's not enough to send it for RMA, either. I don't really have any good ideas to offer at the moment