Sometimes I notice that system is very slow and when I see task manager, these are information in performance tab:
Utilization: 8%
Speed: 0.2 Ghz
Maxsimum speed: 2.5 GHz
Hardware details are:
Windows 8 Pro x64
Sony vaio vpcse23fx
core i5 2450M
RAM 8 GB
VGA Intel gen2 hd 3000
ATI 7400 series
HDD 5400 rpm
As an aside, my graphics driver is from leshcatlabs.net (updated and joined drivers for Intel and ATI).
I use this driver because last update of Sony's driver is 2012 and original ATI's driver from AMD has some problems.
I also disabled ATI card in device manager but problem occurred again. Is it possible that this problem be related to VGA?
Please note, this slow issue occurs at least once every 2 hours, but only lasts a period of time.
What do I mean by slow? It is slow when I want to open an app, when I move mouse (moves with some lags), when I open task manager, when I switch tabs in chrome, even slow in network. Also copying and moving files.
It's obviously related to frequency, because when frequency backs to 2 GHz everything acts normally again.
How can I fix this annoying speed issue?
Update: I found that this issue occures only when laptop uses Intel VGA, And instantly after switching to ATI card frequency goes back to 2GHz.
Distance between frequency issue occurences in my tests is under 1 minute! I mean after switching graphics card to Intel, It happens after less than a minute and switching to ATI fixes it instantly.
Solved:
By using amd.com driver and drivermax
for updating intel driver problem totally solved and after some months of this update i have not this problem again.