Check if your vcore and temps are suitable at 5100MHz.
Check if your vcore and temps are suitable at 5100MHz.
Hey everyone. I've successfully achieved stable performance at 5100MHz on all cores with 1.330v (manual tuning), and LLC at 6? The temperatures look like this: 26°C to 28°C idle, about 85°C during full stress or benchmarking, and 50°C to 60°C while gaming. I've run numerous benchmarks, stress tests, and spent hours gaming without any blue screens. These numbers seem solid. My setup includes an i9 9900K R0 Stepping at 5100MHz 1.330v LLC6 Manual OC (cooled by Corsair Hydro H115i Platinum RGB), an ASUS Maximus XI Hero Z390 with 1401 BIOS, 32GB TeamGroup XTREEM at 4000MHz C18 MSI RTX 2080 Gaming X Trio @ +110 (with 2100MHz effective core clock), and a Memory unit at +1200MHz Cougar 1050w PSU ASUS ROG Strix Helios ARGB case. Are these results reliable?
If it doesn't crash or hit thermal limits, it's okay. Temperature alone isn't enough without considering the change. A CPU at 50°C in a 0°C room is hotter than one at 60°C in a 30°C space. It's the temperature difference that matters. Total temp minus ambient equals the delta. This applies only when throttling isn't happening, since the CPU has its own cap.
No its definitely not throttling. One more question... Why does 5200MHz require extremely high volts in order to get it stable? For example 5000MHz only needs 1.300v, 5100MHz needs 1,330v, but 5200MHz needs like 1.480v+ its insane! That extra 100mhz from 5100mhz to 5200mhz needs an astronomical amount of vcore to stabilise! Is there a name for this phenomenon lol? Cheers guys.
Have you verified your vcore during the tests? When I performed my overclock, I initially set my LLC to 6 but observed that the vcore rose from 1.33V to 1.37V during the benchmarks. I stabilized it by lowering the LLC to 5 and reducing the vcore to 1.32V (5.0GHz all cores). After further adjusting the LLC to 5, the vcore remained steady at 1.32V. If your vcore stays around 1.33V consistently, it’s acceptable. If it fluctuates like it did for me, you might want to aim for more stability for better longevity. It depends on whether you're using a 1-7 or 1-8 ASUS motherboard.
There’s always a cap on how fast you can overclock (silicon lottery). You’ll usually hit a stage where you must boost the vcore significantly to make progress. My old 8600K could be pushed to 4,9ghz at 1,34V (a bit high but reliable). To reach 5,0ghz I had to raise the vcore to 1,42V. After a reset, I managed 5,0ghz at 1,36V on that unit.
I've verified that too—it rarely goes above 1.330v under full load. I experimented with Adaptive VCore, but it tends to overcompensate for CPU demand, so I stick with manual tuning, which I believe gives better results. I also have all the power-saving options enabled, such as C states, SpeedStep, and dynamic clock and voltage adjustments based on workload. I used to assume manual VCore settings would lock the value to what I set, but that doesn't hold when these features are active.
Activated Asus multicore enhancement and it resolved the overvoltage issue in adaptive mode. However, the reason your vcore value remains unchanged after enabling it isn’t clear to me.