MSI Kombustor Tutorial for Stable GPU Overclock Tuning .
Artifact Scan can detect pixel problems while overclocking memory or/and gpu.
If Artifact Scan detect problems (Right Down Corner not 0 / 0), your GPU or GC (Graphic Card) Memory (VRam) is unstable on this frequency, doing mistakes.
Artifact Scan Problem do like sample
3424324/6767565
or
5345235234/2132133
Step by step overclocking is secure 50 mhz step kombustor test 50 mhz step kombustor test ....
If you dont know your GPU Limits and gpu cooler performance.
5 Important thing under artifact scan:
1.Watch GPU Usage need to be maximum (close or egal with 100%)
Some drivers only use gpu 50% under MSI Kombustor, so its problem, because you under gaming has 100% gpu usage.
Best is 99-100% Gpu usage (Some drivers and Windows version can)
Good is 95% or more.
2.Separate Overclock the Vram and the GPU
Dont overclock and test both in the same time, because u dont know which one will Artifact, erroring vram or gpu.
GPU:
So OVerclock gpu, test with kombustor (while no errors, search the best frequency).
Vram:
STock down gpu and Overclock vram test with kombustor. you need high resolution or vram memory tester style like (GL)Furmark-Donut-6500MB (while no errors, search the best frequency).
BOTH:
OVerclock both (gpu and vram too) and test with kombustor (while no errors,use the best frequency).
"BTW, i think DDR5 or GDDR5 videocards dont need memory overclock. Not will faster.
3.Watch Video Memory usage to higher, in this video 400-500 mb, for better VRAM artifact scan.
Increase the Kombustor test resolution for higher VRAM usage.
4. Watch Out GPU temperature, if its too high, doing artifacts. Good is 50-60 Celsius, Bad is 65 or more Celsius
5. Run the artifact scan more than 10 minutes (minimum)!!! If its not doing mistake(s) under this time, your GPU is stable overclocked.
