not getting very stable cpu core speed

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#1 Posted by TheShadowLord07 (22143 posts) -

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?

#2 Posted by adamosmaki (9656 posts) -
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 )
#3 Posted by andyroo08 (2082 posts) -

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

#4 Posted by TheShadowLord07 (22143 posts) -

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
well im using a chrome now and i was playing a game and it still didnt look like it went back to 3.8ghz

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

#5 Posted by adamosmaki (9656 posts) -

[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

well im using a chrome now and i was playing a game and it still didnt look like it went back to 3.8ghz

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

yes. also when browsing your cpu (especially if its a decent cpu like an i3/i5 or a phenomII ) is not supposed to run at full speed since browsing is a very light task on all modern Cpu's
#6 Posted by nilzg (753 posts) -
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 monitor
#7 Posted by TheShadowLord07 (22143 posts) -

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
i have msi afterburner but for some reason i cant see all of the options

#8 Posted by mitu123 (153911 posts) -

[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

i have msi afterburner but for some reason i cant see all of the options

MSI Afterburner doesn't work on cpus.

#9 Posted by adamosmaki (9656 posts) -

[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

i have msi afterburner but for some reason i cant see all of the options

MSI Afterburner doesn't work on cpus.

it works if you download hardware info 64. Just install hardware info select the values you want to monitor and then click configure and select the values you are monitoring and clock on the show on Riva tuner checkbox
#10 Posted by stevenjoywell (4 posts) -
yeah, i think so, if you really want to know either get a program that benchmarks your speeds (writing it down in some file) or a dual monitor
#11 Posted by godzillavskong (7899 posts) -
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
Yep. My fx6100 was sorta doing the same thing, but stopped once I disabled the energy saving option. I also disabled CPB or turbo core, and now mine stays @ 3.8ghz.
#12 Posted by Amster_G (4290 posts) -

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.