Intel XTU settings adjusted for lower voltage. i5-13600KF/Gigabyte B6601 Aorus Pro uses DDR4 memory.
Intel XTU settings adjusted for lower voltage. i5-13600KF/Gigabyte B6601 Aorus Pro uses DDR4 memory.
It seems you're concerned about potential crashes. You mentioned clearing the CMOS and resetting BIOS settings if needed, but it looks like those steps are necessary in this situation. Be prepared for them if you encounter an issue.
If it doesn't start properly, then it's a yes. Avoid resetting the CMOS and all settings unless absolutely necessary. You don't have to go through that unless you really need to.
I experimented with a few adjustments. I reset my power limits back to PL1=PL2=4095W (previously PL1=PL2=175W). I compared setting everything voltage-related in BIOS versus using an auto offset undervolt of -0.05V (refer to the pictures for the exact values). Undervolt protection was turned off, and PL1=PL2=4095W as discussed. The R23 readings matched exactly, which is surprising since I hadn’t made any changes. Clocks stayed at 5.1 and 3.9 GHz in both cases, Vcore stayed steady at 1.26V, P- and E-core VIDs were around 1.213V, and power consumption and CPU package power remained consistent. The R23 scores also didn’t change. What might explain why the undervolt doesn’t seem effective?
I'm using F21, the newest build for the B660i auros pro with DDR4. I also experimented with setting the Vcore mode to fixed at 1.2V, which cut power use to 105W and kept temps around 70°C, but it also cut my R23 score in half. While the voltage adjustment worked, it didn't quite meet what I was aiming for.
I'm facing the same issue with an Aorus B660M pro board and a 13600kf CPU. After updating to the latest BIOS (f21) and disabling undervolt protection, I set a fixed voltage but the system lowers the frequency of the cores, which affects my CPU score. Could you help find a solution?
Intel issued a microcode patch previously that can turn off CPU voltage regulation on B660 models. Certain Asus boards include a straightforward BIOS setting, allowing the use of the early 0x104 microcode without restrictions. This feature lets you lower voltages, reducing temperatures by as much as 25°C when running R23 on a 13600k. Nice work, Intel disabling it. @TimN Let me know if you want TS 9.5.1 beta.