Print Page - Cant get HD5850's to overclock and set fan speed in ubuntu

Title: Cant get HD5850's to overclock and set fan speed in ubuntu
Post by: CubedRoot on June 03, 2011, 02:19:13 PM

I have 3 Sapphire HD5850's running. I have tried to overclock them but I am not getting very stable numbers. Each card is identical, and i cannot get them to clock to the same speeds. I can barely even overclock one of them :(

Heres my setup:
Ubuntu 11.04 64 bit running headless, GDM is set to not start on boot, and I have a script in /etc/init to start X
Catalyst 11.5
AMD SDK 2.4

On GPU 0 I can only get it to stay stable at 800 gpu 300 mem. If I go any higher, I get a system lock and have to reboot to free it. This is the GPU that I used to install Ubuntu, but I am currently running it headless. Also I cannot get the damn speed to set on boot using my start script. I will post the script below:

Code:

#!/bin/bash
# ${1} is used as a variable for the username, password and for the gpu device number.  Ex. mineruser0, minerpass0, Device=0 or mineruser1, minerpass1, Device=1
      HOMEDIR=/home/bitcoin
      MINERSERV=btcguild.com:8332
      MINERUSER=MYMINER${1}
      MINERPASS=MINERPASS

      export AMDAPPSDKROOT=${HOMEDIR}/AMD-APP-SDK-v2.4-lnx64/
      export AMDAPPSDKSAMPLESROOT=${HOMEDIR}/AMD-APP-SDK-v2.4-lnx64/
      export LD_LIBRARY_PATH=${AMDAPPSDKROOT}lib/x86_64:${LD_LIBRARY_PATH}

      #Overclock GPU0 to 800 Mhz and set fan seepd
      DISPLAY=:0 aticonfig --pplib-cmd "set fanspeed 0 75"
      DISPLAY=:0 aticonfig --od-enable --adapter=all
      DISPLAY=:0 aticonfig --od-setclocks=800,300 --adapter=${1}
      cd ${HOMEDIR}/phoenix-1.48
      echo "Starting Miner: ${1}"
      ${HOMEDIR}/phoenix-1.48/phoenix.py -u http://${MINERUSER}:${MINERPASS}@${MINERSERV} -k phatk VECTORS BFI_INT AGGRESSION=10 FASTLOOP=false WORKSIZE=128 DEVICE=${1}

I dont understand why the fan speed will not set with this script, since I can run this same exact command: DISPLAY=:0 aticonfig --pplib-cmd "set fanspeed 0 75" and it will set the fan with no problems from a normal terminal session.

GPU 1 will only overclock to around 900,300 and be stable.
GPU 2 will only overclock to around 930,350 and be stable.

Here is the script I am using for these 2 GPU's:

Code:

#!/bin/bash
# ${1} is used as a variable for the username, password and for the gpu device number.  Ex. mineruser0, minerpass0, Device=0 or mineruser1, minerpass1, Device=1
      HOMEDIR=/home/bitcoin
      MINERSERV=btcguild.com:8332
      MINERUSER=MYMINER${1}
      MINERPASS=MINERPASS

      export AMDAPPSDKROOT=${HOMEDIR}/AMD-APP-SDK-v2.4-lnx64/
      export AMDAPPSDKSAMPLESROOT=${HOMEDIR}/AMD-APP-SDK-v2.4-lnx64/
      export LD_LIBRARY_PATH=${AMDAPPSDKROOT}lib/x86_64:${LD_LIBRARY_PATH}

      #Overclock GPU to 875Mhz
      DISPLAY=:0.1 aticonfig --pplib-cmd "set fanspeed 0 75"
      DISPLAY=:0.2 aticonfig --pplib-cmd "set fanspeed 0 75"
      DISPLAY=:0 aticonfig --od-enable --adapter=all
      DISPLAY=:0 aticonfig --od-setclocks=900,300 --adapter=1
      DISPLAY=:0 aticonfig --od-setclocks=930,350 --adapter=2
      cd ${HOMEDIR}/phoenix-1.48
      echo "Starting Miner: ${1}"
      ${HOMEDIR}/phoenix-1.48/phoenix.py -u http://${MINERUSER}:${MINERPASS}@${MINERSERV} -k phatk VECTORS BFI_INT FASTLOOP=false AGGRESSION=13 WORKSIZE=128 DEVICE=${1}

These cards will run at low temps for hours on end. The highest temp Ive seen has been around 65c.

I have seen alot of folks running this same setup and are able to get 950,325 out of their Sapphire HD5850's with no stability problems. What are some things I can try to get these cards stable and higher clock speeds? Do I need to export any display settings?

Title: Re: Cant get HD5850's to overclock and set fan speed in ubuntu
Post by: Mapatti on June 03, 2011, 02:21:30 PM

Which PSU do you use?

Title: Re: Cant get HD5850's to overclock and set fan speed in ubuntu
Post by: CubedRoot on June 03, 2011, 02:24:27 PM

I have a 600W PSU that is running the system plus GP0, and then I have a 425 ePower JuiceBox that is running the other 2 cards GPU1 and GPU2.

Total power draw from both PSU's is showing to be about 600w from my Kill-a-watt meter

What is strange is that I can overclock all three cards in Win7 to around 940 with no problems.

Title: Re: Cant get HD5850's to overclock and set fan speed in ubuntu
Post by: Mapatti on June 03, 2011, 02:47:01 PM

Im not very good with *NIX OSs but i give a try:

Quote

DISPLAY=:0 aticonfig --od-enable --adapter=all
DISPLAY=:0 aticonfig --od-setclocks=800,300 --adapter=${1}

Why is there adapter=all if you only clock ${1}? And shouldnt there be --odcc (confirm clock)

Title: Re: Cant get HD5850's to overclock and set fan speed in ubuntu
Post by: CubedRoot on June 03, 2011, 02:51:07 PM

the line with adapter=all is just for safety. All it does is apply the aticonfig --od-enable to all 3 of the adapters.
The second line: DISPLAY=:0 aticonfig --od-setclocks=800,300 --adapter=${1} applyes the clock settings to the variable ${1} which in this case would be GPU0 since I run the command like this: startminer.sh 0

Title: Re: Cant get HD5850's to overclock and set fan speed in ubuntu
Post by: exahash on June 03, 2011, 04:44:00 PM

Which Sapphire 5850's are you using? I have a whole bunch of the xtreme's and can't get aticonfig to apply memory settings outside of the overdrive range. The lowest I can get the memclocks to is 900 with aticonfig.

Did you flash your cards' bios?

On my Sapphire 5850's most will do at least 880,900 yielding 330-340 MH/s Some will only take 850,900 and a few lousier ones will only take 820,900

In windows I can use trixx to get around 370 MH/s with 960,300 @1.25 volts. I can't get over 900 gpu clock without upping the voltages.

I'm experimenting with the latest version of AMDOverdriveCtl to get the memclocks lowered in ubuntu.

Also, there's another thread (http://forum.bitcoin.org/index.php?topic=9138.0;all) about oc'ing the 5850's you might be interested in.

Title: Re: Cant get HD5850's to overclock and set fan speed in ubuntu
Post by: Mapatti on June 03, 2011, 05:30:11 PM

Try install older catalyst 10.4 for example.

Title: Re: Cant get HD5850's to overclock and set fan speed in ubuntu
Post by: CubedRoot on June 03, 2011, 05:57:41 PM

I am running the Sapphire Xtreme 1 gig HD5850's. These are not reference cards, so I dont think I can adjust the voltages in the bios. Will AMDovrdrvctrl allow me to adjust the voltages?

I have modified the BIOS on all 3 cards. The only thing I done to the bios was set it so I could run low clock speeds on ram, and allow higher upper GPU limits. The cards are set to run stock clocks on boot, and I use my scripts to overclock them.

Bitcoin Forum

Bitcoin => Mining => Topic started by: CubedRoot on June 03, 2011, 02:19:13 PM