3 questions regarding Ubuntu and ethereum mining

[futuremet]

Hi All,

I have a few rigs going (4 rigs with 3x7950gpus each running ubuntu 14.04) and I wanted to ask some questions to keep my mining safe and efficient.

1) Is there a good watchdog type of program (like teamviewer) that would allow me to restart the miners from my laptop? I have them arranged around my room in such a way that I have to unplug and drag my monitor around if I need to restart them for whatever reason, and I would love to be able to restart them via the psu and then do the rest from my laptop.

2) I have had issues with things like atitweak for changing voltages and memory-it seems it will only mod the clocks on the first gpu (0) and the others (1,2) will be 'found' and mining but I am unable to switch their settings and I would really like to do that

3) I have 4 mobos, 2 have the ability to add 1 card each and the other 2 motherboards have 3 slots remaining each (so a possible 6 gpus to add total). My question about this-would it be more power efficient or even safer to combine them using a 2xpsu connector or should I leave them as is. The only reason this is an issue is because I am right near the limit without tripping the circuit and I hate to risk stuff like that due to greed. (note: all psus are 1000 or 1200watt and are gold rated)

Thanks for any advice-I can provide more details if it's needed!

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[sirslayer]

umm for remote desktop on ubuntu..  a lil tweek on your part can work..

i copied this from this link
http://wiki.getpimp.org/wiki/Getting_Started#3._Remote_Accessing_your_PiMP_Rig

RDP Remote Desktop Protocol (Graphical Interface)
From Linux:
In your Linux box, drop to a terminal, and type: sudo apt-get -y install rdesktop to install the Remote Desktop client. (PiMP has this package installed by default.)
Then when you want to connect, type: rdesktop -u root -p live 192.168.1.5 (whatever your root password and rig IP address are.)
Say yes to any security prompting.

[bobben2]

If you don't have it and would like to install teamviewer in (X)ubuntu, here is how:

1. Download it
wget http://www.teamviewer.com/download/teamviewer_linux.deb

2. Install gdebi (GDebi can install local .deb packages with automatic dependency resolution (it automatically downloads and installs the required packages).):
sudo apt-get install gdebi

3. In the same directory you download the .deb file just run:
sudo gdebi teamviewer_linux.deb

[futuremet]

Thanks for the 'teamviewer' responses so far!

I would really like to know the answers to my other 2 questions if anyone else has input.

Thanks!

[bobben2]

I have a similar setup as you where I have some rigs with 1, 2 and 3 cards
and have the same issue with voltage settings on the cards after I upgraded to Xubuntu 14.04
(needed to upgrade from 12.04 since I wanted to do Eth mining).
The ethminers I have dont have clock and voltage controls, so the cards are mining at full tilt unless I downclock the core with the
aticonfig --odsc command.
I was able to undervolt all my R9 280X and 7970 cards by altering the BIOS using VBE7 tool, and they all run at 1.0 or 0.987
Volt @ 1000 MHz core (Exception being the XFX 280X DD card which wont go lower than 1.1V).
Since my rigs are 3 gpus tops I get away with a single 1000W PSU for each rig.
The 3GPU rig draws roughly 550W so there is no issue with power.

[Eliovp]

Hi All,

I have a few rigs going (4 rigs with 3x7950gpus each running ubuntu 14.04) and I wanted to ask some questions to keep my mining safe and efficient.

1) Is there a good watchdog type of program (like teamviewer) that would allow me to restart the miners from my laptop? I have them arranged around my room in such a way that I have to unplug and drag my monitor around if I need to restart them for whatever reason, and I would love to be able to restart them via the psu and then do the rest from my laptop.

I would suggest to use VNC, it uses a lot less system resources than Teamviewer for example.
Ubuntu has Vino server built in. You'll find a lot of tutorials online how to set it up. It's easy!

2) I have had issues with things like atitweak for changing voltages and memory-it seems it will only mod the clocks on the first gpu (0) and the others (1,2) will be 'found' and mining but I am unable to switch their settings and I would really like to do that

If you want to change the second gpu for example just do this:

aticonfig --od-enable

export DISPLAY=:0.1 (for your second gpu)
export DISPLAY=:0.2 (for your third gpu)

aticonfig --odsc = newcoreclock , new memoryclock
aticonfig --odcc (to apply)

3) I have 4 mobos, 2 have the ability to add 1 card each and the other 2 motherboards have 3 slots remaining each (so a possible 6 gpus to add total). My question about this-would it be more power efficient or even safer to combine them using a 2xpsu connector or should I leave them as is. The only reason this is an issue is because I am right near the limit without tripping the circuit and I hate to risk stuff like that due to greed. (note: all psus are 1000 or 1200watt and are gold rated)

I hope you don't mean combining them with 1 PSU cable?
I personally use as much slots on my mobo's as i can. Just because i like it and i can spare motherboards/processors/memory..

Power is very important, make sure you don't trip your circuits. Best to overbuy a little to be sure!

Good luck!

Thanks for any advice-I can provide more details if it's needed!

[futuremet]

Hey thanks all for the advice, I'm still having issues with the individual card clock changes (I suspect it has to do with my initial ubuntu configuration and only selecting the 'fglxr-prop-updates' option instead of directly installing the drivers).

I had a quick additional question regarding cooling...My room recently has become so hot that I had to shut off 3 cards
Would a fix like this: http://cdn5.thinkcomputers.org/wp-content/uploads/2014/03/ghetto-mining-17.jpg
be able to help that or am I really wasting time?
 If so does anyone have suggestions on how to make something like this without the tremendous hazard of cardboard directly on the gpus!?

Thanks!