Thank you! Also, I want to publicly acknowledge that I received the 10 BTC bounty from gusti.
The script can be downloaded from http://dl.dropbox.com/u/16757143/overclock-test.sh
, shortlink http://db.tt/S73vRHk
. It's written in bash and uses bc, awk,
pkill, so you need to have these installed.
The script starts Phoenix and keeps changing ram/gpu frequencies in set intervals. It also monitors temperature to prevent overheating and determines average hashrates for each ram/gpu frequency pairs. It writes the results in a file called 'results.csv.TIMESTAMP' in the current directory:
If the machine locks, the last line written to the file will be the last passed test. Please edit the script to change your settings and start slow (with values that you know work without hanging your system). I only tested it with Phoenix 1.50 on Debian and Ubuntu, but changes required for other versions/miners should be minimal.
I hope it's useful! If there's interest, I can start a new thread for it and develop it some more (easier to configure and working with other miners, for example).