All modifications are done on your own risk.
Helpful tools:
- Prime 95 v26.6 (none AVX) – stability test and extreme test for temperature
- Your favorite games - test for temperature
- CoreTemp - Monitor CPU power consumption, clocks and temperatures
Setup Long Duration Power Limit -
(up to 30°C)
On modern Intel® based motherboards the CPU is allowed to run the max turbo clock on all cores. Therefor the CPU is able to source up to twice as much power. (9900K – stock 95W TDP vs real 210W TDP) If you setup “Long Duration Power Limit” in the UEFI to a value between 65 to 95W, the CPU will still reach the high turbo clock but as designed not on all cores. In games the average performance loss is 2% while the power and thermal advantage is huge.
*TDP = Thermal Designed Power
Undervolt the CPU -
(up to 10°C)
Depending on your CPU you can setup an offset value between -0,05V to -0,1V. In combination with “Long Duration Power Limit” you can increase the turbo clock over all cores on Intel® CPUs, because with undervolting you lowered the CPU base power consumption. Keep in mind a high value can affect the stability of the system.
Remove the I/O Shield -
(up to 5°C)
Remove the motherboard I/O shield so air can easier exhaust.
Using a fan duct/adapter -
(up to 7°C)
If the CPU fan is not close to the side panel it will recycle hot air inside the case (e.g. L9i/L9a). You can buy the “Noctua NA-FD1” fan duct set or download the 3D print file above and upload it to an online 3D print service.
Delid your CPU -
(up to 20°C)
On some Intel® CPUs the DIE is not soldered to the heatspreader instead the manufacturer uses thermal paste. By delidding the CPU and replace the thermal paste with liquid metal you will see a huge temperature drop. Keep in mind this modification is complicated and should be your last option. We do not recommend it.