Does XMP lead to increased core temperatures?
Does XMP lead to increased core temperatures?
Hi,
I just achieved a stable overclock on my i7 7700k at 4.9GHz with 1.32v using default RAM settings. The next adjustment was to turn on XMP, which increased core temperatures by 5-15°C. I’m wondering what might be causing this and how to fix it. Should I manually configure my RAM or keep XMP active while lowering VCCIO and System agent voltage? My temperatures without XMP are around 75-80 during stress tests, but jump to 85-95 when XMP is enabled.
I finally resolved the issue after many attempts. I reset the BIOS to default optimized settings (not CMOS clear). Then I manually adjusted my CPU. Everything worked smoothly. Next, I experimented with my RAM, beginning at its recommended overclocked speed but reducing the MHz as temperatures rose. Gradually increasing the RAM speed caused higher temps until I relaxed the timings, which stabilized the temperature. Eventually, I matched the XMP frequency the manufacturer set. It all required careful manual adjustments.
The memory controller is located inside the CPU. Increasing its workload generates more heat. You have two options: reduce its speed or lower the CPU's performance slightly. There is no quick solution.
Yes, the frequency remains consistent and it configured bclk to 100
I attempted to lower viccio and system agent to 1.0 but still faced high temperatures. I'll explore further adjustments and provide an update.
After adjusting many parameters, the only thing that worked was switching the DRAM voltage from the XMP value of 1.35 to auto and lowering the memory clock from its XMP rating of 3200 to about 2500mhz. This change feels quite significant. Was this approach previously discussed or am I overlooking something? Additionally, should I prioritize lowering my CPU speed from 4.9 GHz to maintain stable temperatures with a higher memory clock, or would keeping the memory downclocked be more beneficial for performance?