Issues with game performance following CPU overclocking
Issues with game performance following CPU overclocking
My friends and I recently chose to revisit modded Minecraft. After experiencing long waits and crashes with Aternos, I opted to host a server myself. It performed better than Aternos, though it still had some lag when many mobs were present. I thought overclocking my CPU might help. With my Cryorig H7 cooled i7-7700k, I reached 4.8Ghz without changing the voltage. I ran stress tests to verify stability and also tested with Cinebench, improving my score by around 50 points. The issues began when loading into my Minecraft server—both the server ticks per second and FPS dropped compared to before overclocking. Could this be related to a voltage issue or something else? (note: the BIOS task manager showed 4.8Ghz, which is close but not confirmed as normal. My motherboard is a Gigabyte Z170XP-SLI, and I’m using both Minecraft and the server on different SSDs.)
The BCLK relies on a physical quartz crystal on your motherboard, with tolerances typically around .1%. However, this variation becomes significant when dealing with multipliers of 48, potentially causing minor adjustments in the final clock speed. This is completely normal.
Temperatures should be monitored closely; you may need to adjust input voltage or core voltage. Cinebench provides a quick stability check, though it isn't suitable for long-duration testing.
Cache frequency is another factor to consider, as higher clock speeds can increase cache misses between the cache and cores. The setting often relates to the Uncore.
It's unclear if AVX is supported in Minecraft or its servers, but if so, it would impose a much greater strain on the CPU.
The BCLK relies on a physical quartz crystal on your motherboard, with tolerances typically around .1%. However, this variation becomes significant when dealing with multipliers of 48, potentially causing minor adjustments in the final clock speed—this is completely normal.
Temperatures should be monitored closely; you may need to increase input voltage or core voltage. Cinebench offers a quick stability check, though it isn't suitable for long-duration testing.
Cache frequency is another factor to consider, as higher clock speeds can lead to cache misses between the cache and cores. The setting often refers to the Uncore.
It’s unclear whether AVX is supported in Minecraft or its servers, but if it is, it would impose a much greater strain on the CPU. This should be something you explore during testing.
For reference:
i7-7700k @ 5.0Ghz ~1.416 volts (Water cooled, de-lidded and re-pasted—non-liquid metal)
100Mhz x 50, Uncore at 45x, actual memory clock neatly divides into three times (1500Mhz)
I don’t remember my Vinput setting, but it seems to be around 2 volts.
2x8 DDR4 3000Mhz
My CPU is a relatively weak sample and requires substantial voltage to perform well, yet I aimed for a 5Ghz configuration.