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Artifacts while the card is under load (Asus Strix GTX 1070 8OC)

Level 7
Hi guys,

I have recently built a new pc. I have OCd the CPU at 3.8GHz and my G.Skill FlareX is running at 3200Hz (VCORE 1.30V, DRAM voltage = 1.35V, XMP disabled, RAM timings at 14-14-14-14-34) on a Gigabyte Gaming 3 AB350. Here are my full specs.
On that I have a Asus Strix GTX 1070 8OC. Now that my CPU overclock is stable (1h in Prime95 no crash), I wanted to go to GPU OC.

I downloaded MSI afterburner, 3DMark and Unigine Heaven. I first launched Unigine for a non OC run to benchmark my base performance. However, even on non OC card I get wierd texture/polygon stretches and blue triangles. I can make them almost disappear by reducing the core clock by 100MHz. I wanted to overclock not underclock dammnit!:rolleyes:

Here is a recording of it

The factory boost clock of my card is 1836MHz. HWMonitor would show peaks at 1944Hz during the benchmark (why is it higher than the factory boost clock w/o overcloking?). Temperatures are never higher than 60-65°C.

Decreasing memory clock doesn't seems to do anything. Reducing the core clock well below factory default can somewhat solve the probelm

Those glitches normally do not appear my games (WoW, LoL, SCII) but I didn't try recent AAA title yet. I saw the texture stretching in Wow character screen where parts of the model would sometime stretch towards the middle of the screen. The texture stretching is visible in 3DMark Firestrike but less important. I think it's because unigine heaven 1440p stresses the GPU much more than firestrike 1080p

Do you guys encountered that before?Do I have a problem with my GPU? Or is my PSU to weak (550w gold +, my system draws 290W from the socket under load))? Or is it possible that my CPU/RAM OC messes with the card frequencies?
I am thinkin on RMAing

Only decreasing core clock frequency somewhat imporves the problem.

Other things tested:
Reduce RAM frequency
Reinstall driver
Reset bios

Level 7
Hi! I think I have the exact same problem and its the same GPU, I made a thread too but no responses yet, here, this began to happen suddenly.

I thought it was only web players since my games plays fine too, but recently I discovered that it happens with PS4 Remote Play app.

Tell me if you find something, I tried a lot of things too but I'm stuck.

Glad I'm not the noly one. If I find a solution I'll make sure to let you know.

I see several possibilities but since I'm a newbee and I don't have an other computer to test the different components on, I cannot verify them.

The most likely for me is that the GPU is toasted since my pc runs fine in every situation but struggles in graphic intensive work.

If the GPU is fine, it gets complicated. Either the PSU is bad and doesn't supply enough power to the card creating those artifacts. Or the CPU is a potato but I don't think so since it can run Prime95 for hours without crashing.

Then I could be the ram since textures are handled by RAM in addition to VRAM but I ran Memtest and no error was found.

Finally the motherboard could be the culprit but I don't know how to test that. The ideal would be to have a second system to test the components on. In the meantime I think I will try to RMA the card and see if it solves the error.

Level 10
GeForce always boost more than in specifications.
I don't know on newer cards but on Kepler is possible to see max boost on NVIDIA Inspector under Est Max.
Boost for my card is 1072 Base, 1137MHz Boost, but in 3D if need she boost on 1215MHz.

Probably is same with Pascal.
If cards show artificats in games on max boost and if she is not capable to OC that's good evidence that card is not stable on fabric frequency.
From other side if she work fine under 3D and problems show up looking youtube, surfing, etc... than could be driver or some other problem.
CPU will show problems in Prime95, if she pass Prime95 1-2h and if Intel Diagnostic Tool say everything is fine, chipset, memory controller, cpu,... than CPU can't be problem.
Memory could be tested in Memory86 with bootable USB, I think test is arround 4-5h if no errors memory is OK.
Memory is best to test on default setttings 2133MHz and on XMP over night.
Artifacts=GPU problem 99%.