Throttle CPU to avoid fan noise in the daytime

[username]

In the daytime the fan noise disturbs and I want to throttle a little bit the CPU so that the fan makes acceptable noise. I think Intel'sTurbo Boost is reponsible for the higher noise.


At night the CPU can run with full power and with full fan noise.



Is it possible to set such a schedule with Prime95?





Intel Core i5 7400 (4 cores)
Prime 95,v29.4 build 8

[Runtime Error]

Sort of. You can accomplish it by running two instances of Prime95 with different schedules.
By going to Options/CPU, you can set the number of hours that the program will run.
Unfortunately, the two instances will need to work on different exponents.

[Prime95]

look for PauseWhileRunning in undoc.txt. You can pause one or two workers during daytime.

[preda]

Other options:
- you may reduce the CPU frequency a bit (e.g. 5 to 10%) in bios, usually this produces large power savings (thus heat reduction)
- better air flow to the computer case (case fan, or open case cover)
- locate the case close to the ground (air is a bit cooler), and with the hot exhaust pointing up (natural convection)
- shape the CPU fan curve in bios. See if it's safe to run the CPU hotter on less fan.

[kracker]

Originally Posted by preda

Other options:
- you may reduce the CPU frequency a bit (e.g. 5 to 10%) in bios, usually this produces large power savings (thus heat reduction)
- better air flow to the computer case (case fan, or open case cover)
- locate the case close to the ground (air is a bit cooler), and with the hot exhaust pointing up (natural convection)
- shape the CPU fan curve in bios. See if it's safe to run the CPU hotter on less fan.

For windows atleast, you can also set/reduce the CPU frequency inside the OS by going to Control Panel>Power Options>Change Plan Settings>Change Advanced Power Settings then fiddling around with processor power management. FYI, setting the maximum processor state to 99% disables any "boosting" and sets the clocks to default.