Temperature is elevated in the OC 6700K.
Temperature is elevated in the OC 6700K.
Are you sure the H100i struggles with stock settings at higher temperatures? For your Asus Z170-A and 6700K CPU, you might want a cooler that handles heat better. Let me know what you think!
1. What voltage is applied to the core when it's under load? I'm not interested in the "VID" part, that's another thing.
2. Please remove this completely useless program called "Asus Ai Suite 3". This mess gives you nothing useful except a shaky system. It caused my PC to use 30-40 watts more than normal when idle. The BIOS is problematic here and shouldn't be used at all; everything else works fine in UEFI. This software seems to do more damage than help. By the way, the CPU temperature shown in Al Suite 3 isn't the actual core temperature—see HWMonitor.
3. Under heavy load, it's nearly 100°C? The cooling might be insufficient or the overclocking is too high. With such a pricey AI chip, it's way too hot. I own a 43€ cooler (mid-range air cooler), and even with 27,9 cores, it stays between 70-75°C at 4.4 GHz and 1.264V under load. I prefer lower temps or quieter fans, so I stick to 4.4V only. At 4.5 GHz it would need about 1.32V. You probably enabled auto OC in this program? That’s likely the issue. If you don’t adjust the voltage manually, many boards can overheat a lot. My Asus VIII Ranger runs at 1.35V with stock settings, while 1.15-1.18 would be much more stable. The temperature difference is huge. I think you overclocked without testing first—definitely not safe."
4. I don’t suggest buying another cooler, since you already have one. It’s fine as is.
Thanks for the input. I've restored the BIOS to its original configuration and it's still overheating. The MOBO switches are back to factory positions (TPU off, XMP off). BIOS is now set to defaults. The CPU is reaching its maximum temperature of 4.2, which appears normal. I've attached the performance data from Prime95 under full load. It seems keeping the fan control enabled might help. I also ran an Auto OC using the Asus tools, which produced a stable and cool result with my Sandybridge 2600K (4.3GHz). I considered using a better cooler, but it's possible the installation could be improved or the paste might need reapplication.
I might have discovered the problem after sharing my reply. Even after resetting the BIOS to default and using the clear CMOS switch, the voltage remained high. VCORE was at 1.36; I adjusted it to 1.2 and now Prime95 is running, with temperatures around 76°C. Seems like a reasonable max load temperature for stock settings.
Yes, you're checking the right values. Let me know if you need further clarification!
Running Prime95 at 1.2V with no OC pushed me up to around 75°C. That feels quite high for a stock system, right? I only did a small boost to 4.3GHz and set the voltage to 1.25, which brought temps to about 82°C. I’m not sure I’d go any higher, but with an AIO liquid cooler, that’s essentially the maximum I expected. Maybe not as much as hoped. Here are the latest numbers.
Finally disassembled the unit, cleaned the CPU and cooler, installed the Kryonaut module, and ran tests. At idle around 35°C with full load (prime95 max temperature), it reached approximately 75°C with the stock 6700K configuration. It’s about 10°C cooler under load compared to before. I’ll check its stability further. Adding another 140mm fan front might help since there are seven drives in the system. One unit doesn’t seem sufficient.