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Windows 7: Aero effects turns off after overclocking

27 Feb 2014   #11
N00berG00ber

Windows 10 Pro
 
 

add more voltage or reduce the OC. it means your OC is not stable. my 3770k does that too.


My System SpecsSystem Spec
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22 Sep 2014   #12
fstyle

Windows 7 Professional x64
 
 

I had the same issue with AMD Overdrive inside Catalyst Control Center (but not with AMD Overdrive standalone app) with CPU Overdrive option.
After I set a higher clock, aero got disabled and performance degraded.

Today I found that I had to adjust the clock multiplier in BIOS setup to match the clock rates set in Overdrive.
Now Aero got back and performance increased as expected.

Another thing I found is that if I set clock multiplier only in BIOS, but not in CCC, the CPU clock rate increase only when using single core applications, or in disabled cool n quiet mode. Since I need cool n quiet, this is unacceptable for me.

This is releated to Turbo Core technology.
In my example with my AMD FX-8320: Battlefield 3 uses only 4 cores, so my CPU clocks at 3.5Ghz when playing. No matter if I set stock (3.5ghz) or increased (3.9ghz) clocks in the bios. This clock is pre-set somehow for 4 core processing. (higher for 2 cores, lower for 8 cores. This is normal AMD behaviour)
Since I set 3900Mhz in CCC and the same in the BIOS I could solve this issue and my CPU runs 3.9ghz while playing, and Aero is also working. Also Cool'n'Quiet also works so power consumption is normal all the time.
My System SpecsSystem Spec
25 Sep 2014   #13
essenbe

Windows 10 Pro/ Windows 10 Pro Insider
 
 

A CPU overclock and CCC are entirely separate and one has nothing to do with the other. CCC affects the graphics card and BIOS affects the CPU overclock. You can overclock one without the other. If you have services and/or programs shutting down on an overclock, the overclock is not stable, plain and simple.
My System SpecsSystem Spec
.

25 Sep 2014   #14
Dude

Windows 10 Pro X64
 
 

Quote   Quote: Originally Posted by essenbe View Post
A CPU overclock and CCC are entirely separate and one has nothing to do with the other. CCC affects the graphics card and BIOS affects the CPU overclock. You can overclock one without the other. If you have services and/or programs shutting down on an overclock, the overclock is not stable, plain and simple.
I have experienced this playing with my overclock settings.
My System SpecsSystem Spec
25 Sep 2014   #15
essenbe

Windows 10 Pro/ Windows 10 Pro Insider
 
 

Quote   Quote: Originally Posted by Dude View Post
Quote   Quote: Originally Posted by essenbe View Post
A CPU overclock and CCC are entirely separate and one has nothing to do with the other. CCC affects the graphics card and BIOS affects the CPU overclock. You can overclock one without the other. If you have services and/or programs shutting down on an overclock, the overclock is not stable, plain and simple.
I have experienced this playing with my overclock settings.
I doubt if anybody who has tried overclocking very much hasn't.
My System SpecsSystem Spec
20 Feb 2015   #16
DigDeep

Windows 7 SP1 x64 Ultimate
 
 

I have the same problem, this happens if I overclock NB on FX processor.


bcdedit /set useplatformclock true command helps, but it degrades performance
My System SpecsSystem Spec
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 Aero effects turns off after overclocking




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