F5F Stay Refreshed Power Users Overclocking Attempting OC on 9700k with aorus z390 ultra

Attempting OC on 9700k with aorus z390 ultra

Attempting OC on 9700k with aorus z390 ultra

O
OAMPEISHON
Junior Member
Find
1
09-10-2025, 01:40 AM
#1
Hello, I'm attempting to boost my new PC's performance and would appreciate some insights on the outcomes. I'm unfamiliar with overclocking but want to ensure my approach is correct.

Build details:
Intel 9700k paired with Aorus Z390 Ultra
Reference build: https://it.pcpartpicker.com/b/T4V6Mp

I've followed some tutorials and initially increased the clock by a modest amount (4.7-4.8 GHz). However, I prefer not to exceed higher limits to maintain lower temperatures and noise levels.

Test results:
CPU Vcore: 1.25V
Clock ratio: 47
AVX offset: AUTO
Core current: 255
XMP enabled
Undercore ratio: 45
Calibration: TURBO
Core loadline: AUTO

Disabled features: Enhanced multi-core performance, Intel Turbo boost, CPU flex ratio override, Intel speed shift, C1-C3-C6/7-C8-C10 state support, SVID offset
(Tested for 30 minutes with Prime95, max temperature reached 66°C)

Subsequent tests:
Test1: All settings as described above
Test2: Vcore 1.23V – passed 1 hour of Realbench
Test3: Vcore 1.215V – passed 1 hour of Realbench
Test4: Vcore 1.215V, loadline HIGH, ratio 48 – passed 1 hour of Realbench
Test5: Vcore 1.205V, ratio 48 – passed 45 minutes of Realbench
Test6: Vcore 1.215V, ratio 48, AVX 0 – passed 2 hours of Realbench
Test7: Vcore 1.210V, ratio 48, AVX auto – passed 90 minutes in Prime95
Test8: Vcore 1.200V, ratio 48, AVX auto – passed 1 hour in Prime95

During the benchmarks, I experienced freezes if AVX was set to non-zero or auto values after about 15 minutes. Raising the uncore to 46 caused crashes with both Prime95 and Realbench. Even at 1.200V, the system became unstable during 3DMark; increasing Vcore to 1.205 resolved the issue.

Performance metrics were close to 57°C during realbench and 60-61°C under Prime95. Results are available in the dropbox link (I'll update it after more tests).

Advice:
- Intel Speed Shift should remain disabled.
- Consider keeping C1-C3-C6/7-C8-C10 state support off.
- I'm starting with a lower overclock and plan to adjust later.

Appreciate your help!
Reply
Reply
O
OAMPEISHON
09-10-2025, 01:40 AM #1

Hello, I'm attempting to boost my new PC's performance and would appreciate some insights on the outcomes. I'm unfamiliar with overclocking but want to ensure my approach is correct.

Build details:
Intel 9700k paired with Aorus Z390 Ultra
Reference build: https://it.pcpartpicker.com/b/T4V6Mp

I've followed some tutorials and initially increased the clock by a modest amount (4.7-4.8 GHz). However, I prefer not to exceed higher limits to maintain lower temperatures and noise levels.

Test results:
CPU Vcore: 1.25V
Clock ratio: 47
AVX offset: AUTO
Core current: 255
XMP enabled
Undercore ratio: 45
Calibration: TURBO
Core loadline: AUTO

Disabled features: Enhanced multi-core performance, Intel Turbo boost, CPU flex ratio override, Intel speed shift, C1-C3-C6/7-C8-C10 state support, SVID offset
(Tested for 30 minutes with Prime95, max temperature reached 66°C)

Subsequent tests:
Test1: All settings as described above
Test2: Vcore 1.23V – passed 1 hour of Realbench
Test3: Vcore 1.215V – passed 1 hour of Realbench
Test4: Vcore 1.215V, loadline HIGH, ratio 48 – passed 1 hour of Realbench
Test5: Vcore 1.205V, ratio 48 – passed 45 minutes of Realbench
Test6: Vcore 1.215V, ratio 48, AVX 0 – passed 2 hours of Realbench
Test7: Vcore 1.210V, ratio 48, AVX auto – passed 90 minutes in Prime95
Test8: Vcore 1.200V, ratio 48, AVX auto – passed 1 hour in Prime95

During the benchmarks, I experienced freezes if AVX was set to non-zero or auto values after about 15 minutes. Raising the uncore to 46 caused crashes with both Prime95 and Realbench. Even at 1.200V, the system became unstable during 3DMark; increasing Vcore to 1.205 resolved the issue.

Performance metrics were close to 57°C during realbench and 60-61°C under Prime95. Results are available in the dropbox link (I'll update it after more tests).

Advice:
- Intel Speed Shift should remain disabled.
- Consider keeping C1-C3-C6/7-C8-C10 state support off.
- I'm starting with a lower overclock and plan to adjust later.

Appreciate your help!

Reply
Reply
S
Slimjor
Junior Member
Find
13
09-10-2025, 01:40 AM
#2
It's possible to provide it with voltage. 1.35V serves as a suitable maximum for the vcore voltage on Intel chips when adequate cooling is available. This gives you some flexibility.
Reply
Reply
S
Slimjor
09-10-2025, 01:40 AM #2

It's possible to provide it with voltage. 1.35V serves as a suitable maximum for the vcore voltage on Intel chips when adequate cooling is available. This gives you some flexibility.

Reply
Reply