linux 4850 optimize | Bitcointalksearch.org

scar

newbie

Activity: 34

Merit: 0

Quote from: crazybernie on June 29, 2011, 02:52:13 PM

I wasn't able to drop my 4850 any lower than 620MHz memory, and currently I'm running with a core of 735, and netting about 82MH/s

thanks, this setting works for me, but only nets about 71 Mh/s here, however no increase in power consumption (still only using ~70W). i'm using an ASUS EAH4850 @ stock voltage (1.123V i think)

Quote from: crazybernie on June 29, 2011, 02:52:13 PM

but I need more cooling I think.

that's for sure... even at just 71 Mh/s and manually setting the fan to 100% the temp is still 87.

i thought it would be nice to max out the existing hardware i have w/o investing in a higher-end card, but it's looking like there isn't much interest in this card anymore. maybe i get 0.07 BTC/day from its mining...

crazybernie

newbie

Activity: 22

Merit: 0

I wasn't able to drop my 4850 any lower than 620MHz memory, and currently I'm running with a core of 735, and netting about 82MH/s... but that's using RivaTuner in Windows. I'm going to mess with the MSI Afterburner build later tonight... but I need more cooling I think.

scar

newbie

Activity: 34

Merit: 0

after installing the catalyst 11.6 drivers (instead of using fglrx), i was able to adjust the cpu and mem speeds outside of the range. however, none of the reported settings on that bitcoin.it article worked, they all caused the card to freeze. the best i've been able to get so far is by just increasing the clock to 700, yielding an extra 7 Mh/s or so.... screw this

scar

newbie

Activity: 34

Merit: 0

i tried changing the "Clock info 03" to 800 & 500, and that didn't work, the card wouldn't work, so i had to reflash my backup. any suggestions?

scar

newbie

Activity: 34

Merit: 0

Well, i've gotten to the part where i am in RBE and ready to change the clock settings, but i'm confused by all the places. what am i supposed to change in order to increase the range that i can see with aticonfig? here's a screen shot:

http://img171.imageshack.us/img171/4355/unleddq.png

scar

newbie

Activity: 34

Merit: 0

hmm. i thought there was a useful post here explaining exactly how to unlock it, but now its gone..... i was just able to get the necessary hardware together to install windows and try unlocking. please repost or PM the instructions.

edit: found it using google cache. supermine, not sure why you removed the useful information:

Quote

1) boot into windows (i kno it sux0rs).
2) install gpu-z
3) pull bios
4) install atiwinflash
5) start->cmd-> ATIWinflash -unlockrom 0
6) install RBE from techpowerup
7) start RBE and load bios you pulled earlier with gpu-z
8) in RBE change clocks, etc..
9) go to acquire flash and browse for path of ATIWinflash
10) flash the device
11) reboot into linux and be happy about the changed range in aticonfig tool
12) send 0.1 BTC thank you fee to 15DNbzruPy6b6MDutAqRE6BnruhpktGbiH

supermine

hero member

Activity: 826

Merit: 518

Your BIOS is locked.

scar

newbie

Activity: 34

Merit: 0

hi, i've got a miner finally working on linux (ubuntu 10.04 64-bit) on my HD 4850. i'm using this command:

Code:

python ./phoenix.py -u http://user:[email protected]:8332/ -k poclbm VECTORS FASTLOOP=false AGGRESSION=9 DEVICE=1

but i see on https://en.bitcoin.it/wiki/Mining_Hardware_Comparison some have gotten it to be 101 Mh/s but i can't figure out how to get my clock/mem speed like they say (817, 500). aticontrol doesn't let me set those values, since they are both outside the "Configurable Peak Range":

Code:

$ aticonfig --odgc --adapter=all

Adapter 0 - ATI Radeon HD 4800 Series
Core (MHz) Memory (MHz)
Current Clocks : 625 993
Current Peak : 625 993
Configurable Peak Range : [500-700] [750-1200]
GPU load : 99%

Topic: linux 4850 optimize (Read 2726 times)