Topic Title: Radeon 8750M stuck at boost clocks 825 MHz GPU / 900 MHz RAM when used wont use inbetween frequencies.
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Created On: 07/22/2014 01:56 PM
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 07/22/2014 01:56 PM
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avtella
Peon

Posts: 7
Joined: 07/22/2014

I have a Samsung NP300 laptop with a Radeon 8750M 1GB DDR3.

When playing games or if used at all it automatically clocks to 825 MHz GPU / 900 MHz RAM, even when it hits temps of 96C-100C. It wont use any of the inbetween clocks like 775 and 650 MHz. The excessive heat from the GPU causes my CPU to throttle. If I use MSI afterburner to downclock to 650 MHz then I have no issues, max temps are at 85-86C

I have to set Power Play to "Max Battery Life" and it will top off at 400 MHz GPU / 600 MHz RAM and then it stays fairly cool.

Samsung advised me to use AMD website drivers and I had the issue even with drivers from Samsung. I examined the VGA Bios ffs module of the bios downloaded from Samsung and clearly there are 650 and 775 Mhz clocks listed, so I dont get why the driver uses the all or nothing settings.

Is there anyway you could add an inbetween profile for powerplay, ie 650Mhz? Intel has - Performance / Balanced / Power Save profiles, why cant AMD do the same.

I am using Catalyst 14.RC1 currently. I have even reinstalled windows with various versions of Catalyst and still the same issue



Edited: 07/22/2014 at 02:41 PM by avtella
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