In my opinion 1200W is not enough for your purpose. probably the PSU gets too hot because it's running at maximum load, don't forget that 1200W with 90% efficiency results in 1080W real usable power. even if 1 6990 with 2 GPUs uses only 346W, you would reach 1038W with 6 GPUs not even counting in the mainboard and cpu (appox. 80W) + cooling you have and hdd (1100W+)
5 GPUs result in round about 1000W overall use, which seems to be the limit for your PSU with 24/7 usage.

so, either get a 1250W enermax revolution85+ or something bigger or keep it running with 5 gpus.


edit: turning the switches from 2 to 1 (into OC mode?) drains even more power(~210W per GPU), which results in faster shutdown of the psu to prevent your personal computer-meltdown ;-)

cp you can use the command "screen" in your terminal window / ssh session.
just connect to your miner via LAN (works also via internet if you have a static ip or a dynamic dns service ), enter "screen" and a new prompt appears. start your miner or whatever, and then hit ctrl+A (together, hold both) and then hit C. then a new prompt appears, you get a new tab in that terminal window. like tabed browsing in firefox (just without the tabs to click at). enter your commands here. open a new "window" with ctrl+A +C again and so on.

cycle through windows with ctrl+A (again hold both keys) +N (for next) or +P (for previous) to go forward and backwards through your tabs.

you can close the terminal window with the screen ssh session and resume it even after restarting the computer you used to ssh into the miner or from another machine, just connect to your miner again and type "screen -r" into your terminal. et voila, you can flip through your screen tabs again.

With this method you will need only 1 window per miner with as many gpus inside as you want.

oho entschuldigt die frage euer hoheit.

naja hier gibts die auf jeden fall zu dutzend im regal. aber nicht im dutzend billiger!

warum holst du sie dir nicht im Laden um die Ecke? kosten 26-28 Euro das Stück

how do you supply them with power? 63A line? 3x16A? I see at least 10kW standing there

and how hot do they get, especially the gpus in the middle of that sandwich? did you measure the noise level (1m distance)?

whats in there?

vor dem Crash dauerten meine Abbuchungen von MtGox --> Sparkasse in Deutschland rund 52h (also Montag Vormittag angewiesen, Mittwoch Mittag wars da), das funktionierte logischerweise auch an nem Dienstag oder Mittwoch.
Nach dem Crash hats nen halben Tag länger gedauert bei einer Überweisung, die andere war auch nach 2 Tagen da.

Und die "Beschwerde" an die französische Bankenaufsicht ist lächerlich in meinen Augen..

Aber darauf, dass die demnächst mal ein anständiges Geschäftskonto haben, kann man nur hoffen

did we actually have a "God hates Miners" thread?
 

I tried two different resistors, first small 68 ohm with low W rating, was hard to get them to work.

then I tried again and bought a couple of these babys

http://www.conrad.de/ce/de/product/419435/WIDERSTAND-METALL-1-W-1-82R-BF-0414/0241230&ref=list

yeah it's german, but you get it. 82 ohm, 1 W. and you have a picture.
has pretty thick wires and i was able to push one with little force directly into the dvi port of my 6870's (like this: http://blog.zorinaq.com/?e=11 ) - try what orientation works best for you, make sure the resistor wires actually meet the metal parts of the port (use a flashlight to see them if in doubt).

it worked like a charm - virtual screens poped up in the windows desktop manager even while the computer was running

anyway I switched to Ubuntu a day later.. don't need the resistors anymore right now ^^

so you solved 1 block only

that eligius payment could also be one that you got when they changed their payout system a couple of days ago. they paid you one time even if less than 7 days have passed and amount < 1 btc. explains the two other "generated msg". I got one myself and was wondering too until i saw the info on the eligius website.

nice app! web-apps are the future I guess.. will work on iPhone (and Android?) without the need for the app store.

and lol @ slush ^^

no problem.

I'm now actually using my iphone/ipad to SSH into my miner from everywhere where I have 3G or WiFi

and you need dyndns or a similar service in case your ip is not static (it will be dynamic in most cases)

dyndns.org

can this be a "problem" with powerplay or something like that?

i have my clock settings (5870: 960/300 ;6870: 1000/300) persistent and after reboot it looks like this (screen attached to Adapter 0):


Adapter 0 - ATI Radeon HD 5800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    157           300
             Current Peak :    960           300
  Configurable Peak Range : [600-900]     [900-1300]
                 GPU load :    0%

Adapter 1 - AMD Radeon HD 6800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    300           300
             Current Peak :    1000           300
  Configurable Peak Range : [775-1000]     [1150-1250]
                 GPU load :    0%

Adapter 2 - AMD Radeon HD 6800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    300           300
             Current Peak :    1000           300
  Configurable Peak Range : [775-1000]     [1150-1250]
                 GPU load :    0%

(you can see the memory clocks in powerplay mode idle (if i can call it that) is 300 as supposed to be with my settings)


As soon as I start my miner, it looks like this:


Adapter 0 - ATI Radeon HD 5800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    960           300
             Current Peak :    960           300
  Configurable Peak Range : [600-900]     [900-1300]
                 GPU load :    99%

Adapter 1 - AMD Radeon HD 6800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    1000           1150
             Current Peak :    1000           300
  Configurable Peak Range : [775-1000]     [1150-1250]
                 GPU load :    99%

Adapter 2 - AMD Radeon HD 6800 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    1000           1150
             Current Peak :    1000           300
  Configurable Peak Range : [775-1000]     [1150-1250]
                 GPU load :    98%

Core clocks rise as expected, but mem clock @ 6870  goes to default.
I also was not able to change this with AMDOverdriveCtrl.

We need to find the switch for that powerplay feature!

i didn't realize that.. explains why my hashrate didn't change much ^^

yes.

only problem is that you can't adjust the voltage, so if you set the core clocks too high, things become unstable.
if anyone has a solution for that problem..

do you have a fan in the airtunnel installed?


those fan speeds are insanely high, i have a 5870 at 960/300 at 55% Fan and 69.5°C and 2x 6870 at 1000/300, 60% and 74°C running... don't even want to know how much noise your rig makes!

You have HAF-X closed and with the side-fan activated?

if this is the case, 4-card setups will drop of my list (noise level)

thx for putting it all together!

what cards are you using?

is diablo miner faster than phoenix/phatk for you?

have you oc/uc all your cards to 900/300?

aaand, what mainboard and PSU are you using? :-)

what cards are that and what are the temps of the top one and the three in the airtunnel while mining?

I have the same tower, but not installed the tunnel yet and have only 3 cards (with 1 slot free in between)

just download the driver from the amd homepage

http://support.amd.com/us/gpudownload/linux/Pages/radeon_linux.aspx?type=2.4.1&product=2.4.1.3.42&lang=English

and do that in your terminal in the same folder as the driver:

"sudo sh ati-driver-installer-11-6-x86.x86_64.run"

when this is finished, do

"sudo aticonfig --initial -f --adapter=all"

and a reboot afterwards nearly always helps