Observation note on LLC (Line Load Calibration), ROG boardI've been observing LLC's behavior very closely recently and I'd like to share my findings.
- Generally, setting LLC at
AUTO will work in most cases. The mobo detects the vdroop very accurately. I noticed that it will generally set your LLC to 75% on auto mode
- Using the following example of my OC - 5ghz, vcore bios 1.375, LCC: AUTO
1) AISuite 2 will show a vcore of 1.368 (0.007) less than actual 1.375.
2) If I lower LCC to 50%, vdroop will occur and it would drop to 1.344. Prime will fail immediately.
3) If I lower LCC to 25%, BSOD will occur immediately
4) If I increase LCC to 100% vcore would go up t 1.400 and fluctuate upwards
Therefore,
LCC @ 75%, BIOS 1.375v, Actual 1.368 = 0.5% error (negative)
LCC @ 100%, BIOS 1.375v, Actual 1.400 = 1.8% error (positive)
I am able to obtain 1.376v by setting BIOS to 1.380 with LCC @ 75%, however LCC fluctuates around 1.368 - 1.376
To obtain the same range of 1.368 - 1.376, I would set LCC @ 100% and Vcore at 1.355.
Summary:- LCC @ 100% would result in higher Vcore than what was set in Bios
- LCC @ 75% would result in lower Vcore than what was set in Bios
- Either LCC still suffers from the same fluctuation, it's just a matter of setting the Vcore in bios to obtain the same fluctuation range
i.e.
Bios Vcore @ 1.355, LCC @ 100% = Actual Vcore of 1.368 - 1.376
Bios Vcore @ 1.380, LCC @ 75% = Actual Vcore of 1.368 - 1.376
Now, I'm basing this on AISuite's sensor/CPUZ, maybe LCC 100% is actually more accurate if I'd taken measurement with a multimeter.
i faced this problem during folding. The voltage fluctration by manual LLC make the folding hang. Only in auto mode, the rig maintain steady