AMD 6950 getting 100MH/s ONLY! | Bitcointalksearch.org

Veldy

member

Activity: 98

Merit: 10

Quote from: jks007 on April 24, 2011, 09:40:21 AM

If you are running windows 7, One possibility is that you have Power Options set to "power saving mode" which might be setting the 6950 into its lowest power state.

No, I long since tuned power savings mode. One thing I have noticed is that with the AMD Catalyst drivers, my monitors do no shut off [they are set to power off at 15 minutes and use a "blank" screen saver]. I have to shut them off myself to avoid the florescent back light from dying an untimely death. Yes, I am running Windows 7 x64 (Professional ... had Ultimate from MSDN on my last machine, but found the ultimate features a complete waste of money ... didn't renew the MSDN subscription and paid for Professional OEM).

jks007

newbie

Activity: 5

Merit: 0

If you are running windows 7, One possibility is that you have Power Options set to "power saving mode" which might be setting the 6950 into its lowest power state.

Veldy

member

Activity: 98

Merit: 10

I didn't see which client you are using, but try passing -v -w 128 in as arguments if you are using poclbm. Makes a huge difference. If it slows your machine down any, throw -f 60 in as well [I haven't tried this switch myself]; it supposedly will reduce the hash rate a little, but make the computer more responsive [without it, on my machine, some videos in firefox will lock up my machine hard ... never would happen with NVidia cards, but you also don't get the hash rates from NVidia cards ... too bad since their drivers are simply better].

luffy

hero member

Activity: 607

Merit: 500

280 is normal
you should use ati afterburner 2.0.0 and enable unoficial overclocking in afterburner.cfg file Wink

google the exact procedure

chungenhung

legendary

Activity: 1134

Merit: 1005

Quote from: luffy on April 23, 2011, 12:51:33 AM

console version is working fine!
remove all ati drivers and seperate ati stream drivers if are installed.
then download catalyst 11.3 with APP (the file should have the _ocl extension)
install them reboot and you are ok. then you may use msi afterburner to change clocks Wink

Yes, I am using 11.3 with APP.
I added the -v -w128 -f2, and now it is running 280MH/s. Is that normal now?
Also read that memory clock should be lowered to 400MHz, how is that even possible? I mean, the lowest setting on AMD CCC only goes down to 625MHz.
Will be flashing the BIOS to 6970 tomorrow.

luffy

hero member

Activity: 607

Merit: 500

console version is working fine!
remove all ati drivers and seperate ati stream drivers if are installed.
then download catalyst 11.3 with APP (the file should have the _ocl extension)
install them reboot and you are ok. then you may use msi afterburner to change clocks Wink

chungenhung

legendary

Activity: 1134

Merit: 1005

i am running poclbm console version

commlinx

full member

Activity: 294

Merit: 100

I recently had some odd things happening after installing a 6970, I don't for sure what fixed but a reboot after installing CCC fixed one problem with the speed reported (although it did seem to be running at the higher speed) and removing any 3rd party tuning utilities I'd installed to try and fix it sorted out some stability problems. Also if you're running rpcminer-opencl give poclbm-gui a try.

chungenhung

legendary

Activity: 1134

Merit: 1005

My 6950 is only oding 100MH/s.
It seems that the GPU clocks are at 250MHz only instead of 800.
How can I force 3D clock speeds?

Topic: AMD 6950 getting 100MH/s ONLY! (Read 2339 times)