Strange Intel Core i3 370M GPU clock behavior! Help me resolve, please!

I bought a GIGABYTE i1520M laptop and I experience some strange GPU clock behavior. The GPU is Intel HD Graphics and I found out the GPU is integrated on the CPU, which is Intel Core i3-370M. When i play games (like this one) or another less demanding games (like GTA:SA:MP), the framerate (FPS) is too low. Here comes the strangest part: When I unplug the laptop from the AC adaptor, I experience high framerate boost! I don't know what the hell is going on, but seems like the GPU power management seems to be somehow broken (altrought it is a factory default!). Seems like there's normal GPU clock, when running on the battery power, but after connecting it back, to the AC adaptor, the frequency (or voltage) drops in few moments of GPU usage. The power management in Intel's GPU tool seems to be set well (both AC and DC power are set to Maximum performance). The questions are:
1) What causes this behavior?
2) How to "overclock" it back to normal, when connecting the adaptor.
Feel free to comment. Could somebody with the sam CPU (or laptop) confirm this? If there will be negatives, I am willing to send it to warranty repair.

Category:

Gaming

Tags:

• intel
• core
• i3
• 370
• fail
• gpu
• clock
• overclock
• downclock
• ac
• dc
• power
• gaming
• assasins
• creed
• strange
• behavior
• help
• please
• hd
• 720p
• gigabyte
• i1520m
• resolve
• issue

[dakisa91]

Just review your power management , if its not on POWERPLAY when plugged , then you are propobly on power save mode witch will UNDERCLOCK your gpu+cpu and you expirience heavy lag ,

again , check your power options , or battery options , or what ever its called

[grenames]

@dakisa91 Actually i have both AC AND DC modes set to Max. Performance in Intel mgmt tool that is accessible from desktop.

after plugging AC back in, it runs as smooth as on DC, but then, after about half a minute it goes back to heavy lag...

[doyouknow121]

@lmojzis92 Thanks for the reply mate..but i can't be like taking out my battery every time I feel like playing a game on my laptop..so what do u have to say on this?

[lmojzis92]

@doyouknow121 Yes. Let your battery fully charge. Play games without battery inside.

[doyouknow121]

I have already tried the max setting on my power plans and in intel HD graphics...the performance has been set to max in both - plugged in & battery..still it lags on AC power but works fine on battery..which is really strange!!!

[doyouknow121]

Hey grenames,

Did you finally get any solution to this? Cos I'm facing the same problem on my laptop..its a Sony Vaio Laptop with intel i3 370m processor..any reply to dis would be really appreciable

[vistavsxp]

in power options use same thing... graphics performance...

if no... download windows vista or 7 burn on cd and reinstall

it may take very long time to fix this shit, try reinstalling widnows

oh yea btw... use HWiNFO64 to see clock speed of gpu... I have laptop i3 370m, intel hd graphics... my clock speed is 366.7 to save power when im not playin

[lmojzis92]

@vistavsxp As stated in description, this option is already set.

[vistavsxp]

dude go to grapchis options and put maximum performance on pluged in and on battery :D

[lmojzis92]

Just found out. It's some damn power saving that occurs when the battery is absolutely fully charged when on AC. As I haven't found this issue anywhere else, it appears to be vendor-related issue (GIGABYTE - I'm never buying any other laptop from them, I've always been offending to Acer, but they don't have issues of this kind. I'm not even buying Intel-GPU-only laptop, It has to be i3/i5/i7 + nVidia). Hope this helps!

[BrainHaemorrhage]

i3 = cpu+gpu

[mihnea134]

mine makes the same, low fps on gta4, but i didn't try without AC,