I7 8700K in high heat using NZXT Kraken X63 liquid cooler
I7 8700K in high heat using NZXT Kraken X63 liquid cooler
Hey! You're running into heat issues even after overclocking your i7 8700K. Despite proper setup—correct pump speed, fan tuning, and thermal paste trials—temperatures still spike during stress tests. It seems the CPU is overheating under load, possibly due to insufficient cooling or thermal resistance. Check if the paste is fully cured, ensure the fans spin freely, and verify BIOS settings for any overheating protection adjustments.
Used the same CPU model with 4.7 cores, 1.25 cores per core, and experienced spikes to the 90s during intense stress tests. A decent 240AIO worked well, though I eventually gave up after seeing it struggle under heavy load.
Hm alright My friend that has the exact same case, CPU and cooler is only getting top spikes at around 86-ish.. we even use the same thermal paste. Aswell as he's running at 5Ghz with offset at -300Mhz. I don't get why my spikes are getting so high, ran another stress test and got 100 at the highest point.
AVX offset at -300 MHz? Your friend's clock is 5.0 GHz, yet you're seeing 4.7 GHz when AXV instructions are active. Can you run smoothly at 4.8 GHz with a bit lower voltage, such as 1.34V or 1.32V? Are you noticing the 97°C for the hottest core, or is this related to the CPU package? Tools like Power Viruses (OCCT/Prime95) push the CPU harder than games, and normal tasks are designed for that purpose. Temperatures actually stay more manageable during gaming.
Before and after removing the case: My 8700k has never reached 80°C. If temperatures rise unexpectedly, it’s most likely due to poor cooler mounting, a faulty aio pump, or incorrect factory thermal paste below IHS / crooked glued IHS. When it isn’t just inconsistent performance or inaccurate readings.
That’s a notable temperature decrease with just the delid. Maybe I should try it on my i7-8086K as well. Did you install a delid tool and then re-seal it afterward?
I purchased Chinamate2 from eBay (not exactly named Chinamate2). It was a budget option, around five bucks plus shipping. I didn’t reseal it since there’s no need. It stays securely in place thanks to the ILM mechanism in the CPU socket—it doesn’t shift at all and feels quite stable.
The AVX offset is set to -300Mhz. As discussed, he’s reaching a peak near 86 during stress tests at 1.350V. However, I consistently see peaks 10-15 degrees higher. I’ve reset everything to default and used MSI Enhanced Turbo which runs it at 4.7Ghz with auto voltage (max 1.350V). Still, once the game loads in Textures & Maps, it spikes to about 97 degrees quickly before dropping back to around 86. I’m confirming the 97 at the hottest core—though I understand stress tests push it further, but a spike to 97 in Flight Simulator doesn’t seem accurate.