7800x OC Settings
7800x OC Settings
Hello everyone,
I understand this might be a bit sensitive, but I really wanted to give the X299 a shot after my 5930k.
Last night I connected my 7800x and ran some initial tests—leaving Prime95 running all night. My CPU managed to hit 4.6ghz at 1.22Vcore with a 3.0ghz mesh at 1.075v. The RAM was set to XMP 3000.
When I tried the same settings but increased the CPU frequencies to 4.8ghz at 1.25, it became unstable.
I’m new to overclocking and would appreciate any general tips or advice.
Questions:
1. What’s the best Vcore range for daily use with my Swiftech X3 360 cooler? It stays around mid-60s to low 70s during Prime95.
2. Should I prioritize mesh frequency over core clock, or can I try both and see what works? Is it possible that the mesh is limiting the top speed?
3. The AVX offset settings are currently -2 for both AVX and AVX512. Do I need to adjust them differently?
4. What stability tests should I perform on the CPU? Right now I’m just using Prime95 and Cinebench to check performance.
Hardware:
i7 7800x
MSI X299 Tomahawk Arctic
16 GB DDR4 @ 3000MHz
GTX 1080
EVGA Supernova G2 1300W PSU
Any guidance would be greatly appreciated.
Thanks!
The guideline is to enable auto mode, then perform a stress test and record voltage and frequency values manually in the BIOS. You should follow two approaches:
1°/ Improved performance: Increase the multiplier until stability fails, then adjust voltage by small steps (0.025-0.05V increments). Once the desired frequency is achieved, reduce voltage as much as possible while maintaining stability.
2°/ Enhanced thermal management: Maintain the original frequency and lower voltage to the greatest extent possible until instability occurs.
TIPS: Keep temperatures under 85°C during testing and maintain voltage below 1.35-1.38V for regular use.
For your queries:
3°/ The AVX offset helps decrease CPU frequency when executing AVX instructions, which are used in certain games and scientific tasks.