Set the voltage configuration for the memory controller using the BIOS settings.
Set the voltage configuration for the memory controller using the BIOS settings.
I have a 13700k + z790 ASUS Apex with a 7800 kit that's being overclocked to 8000 using stock memory timings. The key factor for stability seems to be the Memory Controller Voltage setting in BIOS. I can run TM5 and yCruncher at around 1.42 volts without issues. For more complex tasks like OCCT, Karhu, or VST, I need to raise the voltage to about 1.468 volts. I'm comfortable with temperatures staying under 68°C during stress tests. I understand there are two approaches: one avoids crashes in lighter loads and games, while the other aims for higher performance. I'm leaning toward the second option. My concern is whether increasing the voltage long-term could damage the Memory Controller.
1.47V isn't suitable for that rail. It's a replacement version of the old VDDR Rail used with DDR4, which people normally operated at 1.65V without problems. I'm a bit puzzled why it needs to run so high—everything I've seen with the Apex suggests this rail should stay low, though it's possible something unusual could work.
I'm pleased to be in that secure range. Talking to various individuals revealed I require an extremely stable setup. The same group appears content with the idea that "it won't fail under light stress tests and I can run all my programs and games smoothly." Most don't push it to the extreme like I do. Generally, those who own an Apex model don't test at 13700K. Looking back, I regret not choosing a 13900 since they were advised that the 13700K was the second most problematic CPU in this line, adding more complexity to the situation.
The issue is that users have achieved stable configurations on that board at settings such as 8400, making it reasonable to attempt similar stability levels. Intel doesn<|pad|>'s choose memory controllers, which isn't a major concern here. A 13700K often features a superior memory controller compared to a 13900KS, even though the latter's cores will be significantly weaker. It's not unusual for this to happen. I'd also consider the 13700K as one of the least reliable CPUs in the 13th gen-K lineup. The 13600K typically becomes a candidate only if a P-core fails, and I've noticed several high-binned 13600Ks available—some, like an SP97 chip I know from a friend, fall around average performance for a 13900K. Most of these are essentially unbinned chips. Assuming P-cores remain functional, E-cores should too, so the 13700K is essentially a binned rejection for the 13900K. I still prefer the 13700K over the 13600K, as adding another P-core would be hard to beat, but for SuperPi scores, a 13600K might perform better.