not getting very stable cpu core speed

when i start up my pc cpuz says the core speed is 3.8ghz but after a few minutes it drops to 1.6ghz. any idea whats going on?

The CPU is throttling down to save power, it can be disabled in the bios but it's best to leave it. The CPU will run at full speed when it needs to ie. gaming

thats a power saving feature that all modern CPU's have. It means when your cpu is idling (when for instance browsing the internet ) your cpu will operate at a lower frequency to save power. You can turn it off in the motherboard bios but there is no reason to do it. As long as you start a program/game that needs cpu power your cpu clock will go back to 3,8ghz ( even something as simple as google earth will do it )adamosmaki

edit: also the core voltage is keeping going up and down like the core speed. is that fine as well?

[QUOTE="adamosmaki"]thats a power saving feature that all modern CPU's have. It means when your cpu is idling (when for instance browsing the internet ) your cpu will operate at a lower frequency to save power. You can turn it off in the motherboard bios but there is no reason to do it. As long as you start a program/game that needs cpu power your cpu clock will go back to 3,8ghz ( even something as simple as google earth will do it )TheShadowLord07

edit: also the core voltage is keeping going up and down like the core speed. is that fine as well?

you know that when you alt&tab out of a game your cores jump back to lower speeds right? if you really want to know either get a program that benchmarks your speeds (writing it down in some file) or a dual monitornilzg

[QUOTE="nilzg"]you know that when you alt&tab out of a game your cores jump back to lower speeds right? if you really want to know either get a program that benchmarks your speeds (writing it down in some file) or a dual monitorTheShadowLord07

[QUOTE="TheShadowLord07"]

[QUOTE="nilzg"]you know that when you alt&tab out of a game your cores jump back to lower speeds right? if you really want to know either get a program that benchmarks your speeds (writing it down in some file) or a dual monitormitu123

thats a power saving feature that all modern CPU's have. It means when your cpu is idling (when for instance browsing the internet ) your cpu will operate at a lower frequency to save power. You can turn it off in the motherboard bios but there is no reason to do it. As long as you start a program/game that needs cpu power your cpu clock will go back to 3,8ghz ( even something as simple as google earth will do it )adamosmaki

What exact BIOS setting enables that feature (lower clocks when idling)? I've pretty much disabled anything CPU related to achieve my current overclock but it seems like my CPU's clock speed is constant, even when idling.