4820TG GPU Overclocking

It has the 6550m GPU.
I can't find Overdrive in CCC to overclock it.
I tried installing the latest version and the acer version.
It's not included..

What should I do?

 

Have you tried MSI Afterburner or EVGA Precision yet?
These tools are the best and easyest way to overclock your graphicscard!

The 6550 core is based on the 5650 with DirectX 11 and the 5650 can be Overclocked very easy

Give it a try...

 

I've tried both. Along with rivatuner, atitool, and gputool.
No luck!
The closest I got was with afterburner. I was able to downclock the core and memory, but not OC.
Also I cant touch fanspeed or shader clock.
Any clue?

I think I need a specialized driver..

 

I know that some GPU Bioses are locked...but that no Tool works...mmmm

Another way is to extract the Bios with GPU-Z and clock it with a Bios Tool like

RBE from RBE - Radeon BIOS editor but very risky...

 

Im sure theres another method. I'd do that as a last resort.
However.. wouldn't the risk be mitigated by the inclusion of integrated graphics to the equation?
BIOS flash fails, use intel graphics to reflash original.

It's not as if the BIOS flash will cause the card to smoke and catch flames.

Either way I think that's unnecessary and i'd much rather wait til somebody else whose gotten it working chimes in

EDIT: That said, I cant even copy the original bios with GPU-Z.
It says BIOS reading is not supported on this device...

 

AMD GPU Clock Tool works for me.

You could also try unlocking the clocks in MSI Afterburner 2.1. Change these in the .cfg file in the program folder:

UnofficialOverclockingEULA = I confirm that I am aware of unofficial overclocking limitations and fully understand that MSI will not provide me any support on it
UnofficialOverclockingMode = 1

This unlocked the clock sliders up to 780/1040MHz (earlier they were stuck at a max of 600/800).

Edit: Unfortunately,
(1) AMD GPU Clock Tool locks the clocks to 710/1100 (in my case) and they don't downclock even at idle.
(2) MSI Afterburner lets the clocks downclock at idle, but the memory slider only goes up to 1040 (when my memory is stable at 1100).

Edit 2: Haha, I just started Afterburner again (I closed it with my clocks set at 710/1040) and now the sliders go all the way up to 925/1355! Afterburner it is for me then.

 

But now your 2D profile is null. That's what I found out, basically you need the max cap to be at (780/1040 in your case, 715/1040 in my case) the particular level for the 2D clock to be set at default - aka auto-downclock.

 

Umm, what I said is that if I use Afterburner to set my clocks, it will still downclock to 100/150 at idle, which is exactly what I want. There is no threshold in Afterburner after which the card won't downclock at all.

 

Cool!! It worked. Clocked at 725/990 right now.
Can't seem to go higher with mem clocks. Even 995 gives me wicked artifacts.
I'm gonna play some crysis 2 MP demo to test the stability.

Are you on the Acer driver's or the latest straight from AMD?

Thanks BTW

P.S. I think he's referring to 2D clocks, not the idle of 100/150.
There should be 3 levels of clocks. the idle, 2d, and 3d/gaming.
My 2D seems to be 450/800.

 

Idle and 2D clocks are the same thing for this card- it should be 100/150.
Apart from that there are other combinations- 3D clocks, UDV clocks and combinations like 300/300, 375/400 etc.
AIDA64 or Everest display at least some of them.