What is the correct CPU overclock voltage?
What is the correct CPU overclock voltage?
Check if any datasheet or specifications mention 1.45V harming an 11th gen 14nm processor.
LLC is an extra voltage added universally. Whenever the CPU requires power, it causes a sudden and significant strain on the VRM, which takes some time to stabilize. If the CPU then needs power again before the VRM has fully recovered, LLC compensates for the shortfall. This mechanism ensures that the system can handle fluctuations without interruption.
For example, if the Vcore is set at 1.35V and the CPU draws more, it immediately demands that level of voltage. If the available power drops to 1.2V, adding a small 0.15V LLC brings it back up to 1.35V before the next CPU spike. If the recovery takes longer, the LLC still contributes, resulting in a total of 1.5V. This situation is undesirable.
LLC should be applied to nearly all general overclocking needs but should not exceed 60-66% of the Vcore, which corresponds to level 3 out of 5, or level 4 with high overclocking. Level 5 is only suitable for LN2 overclocking. Extreme LLC is meant for top-tier overclocking scenarios, such as a 5.0GHz CPU on an 11th generation processor—far beyond typical requirements. A 5.3GHz setup would approach extreme demands.
Setting a large negative offset (affecting the VRM more than the CPU) and then relying heavily on LLC to bridge the gap can lead to unnecessary voltage increases, causing your load voltages to exceed idle levels. There are two main voltages: Vcore and VID. Vcore reflects the CPU's demand (not always the actual value), while VID represents the VRM's supply capacity. The offset is applied to VID, not Vcore. If the CPU needs 1.2V but the offset reduces VID to 1.1V, LLC must compensate or risk a crash. VID and offset should only slightly exceed Vcore, without requiring LLC. LLC is only needed for VRM recovery, not as an extra boost.
Large voltage variations can cause instability, which OCCT isn't designed to detect—especially during gaming sessions where crashes become more common.
Thanks for clarifying. I believe LLC 7 is acceptable. I'm monitoring voltages during stress tests or gaming with two monitors. I've tried lowering the LLC but it causes crashes frequently due to noticeable voltage drop. On the other hand, I don't feel like I'm pushing the voltage too high and see it as safe. Even 1.45V seems fine. The motherboard and VRM are in good shape (maintaining good temperatures) even under stress. I think they should handle LLC 7 in the long run.
OCCT isn't flawless, but I also add extra stress tests. For instance: playing DOOM, rendering, and background 2K video playback.