I just update the original post with pic.

Nope ... just upgrading ...

I'm located in the Pacific Northwest region of the US. So shipping will be from that zone. I've found that I can very cost effectively ship lots of 5-15 cards for about $50 in my shipping zone ... I'll of course have to double check depending on where it goes to. I can most easily ship USPS or UPS.

I originally bought 3 of these cards used off of eBay for a small fortune.

They have provided dependable service for 9 months. I have no problem running the gpu's at 900 mhz, I've gone up to 920 mhz but I preferred the power usage of 900 mhz. In addition these cards have the dual bios which switches the cards up in voltage and allows clocks into the 940-970 mhz range but at great increase in power usage. I have the original invoice for this card and so if for some reason the card goes belly up I can provide warranty proxy.

Here is the cgminer output of 1 card running at 920 mhz.

 0: 920 800 1.120 74.5C 5371 99% | 405.4/410.6Mh/s | A:8075 R:45 HW:0 U:5.51/m I:10
 1: 920 800 1.120 67.0C 30% | 419.9/410.7Mh/s | A:8143 R:43 HW:0 U:5.55/m I:10

The best I ever got was from 3 6990's in one machine pulling 2630 mhash/sec at the higher voltage.

I'm not sure what is fair pricing for a 6990 right now ... make an offer.

You can pm to sunbreak on freenode irc. Please reasonable offers only, don't waste my time. You can also just reply to this.

I'll accept BTC or MTGOX USD cash redeem code, or even PayPal if you pay the fees.

I'll be selling the 3rd card as well, but I have it loaned out right now. Should be coming back soon.

I built a big cluster with the idea of putting 6 gpu's per machine. That didn't work out ... I ordered over 100 cards and have these remaining, still unopened in the box. These cards are the latest revision of the PCB which runs cooler than my previous rev cards.

The card features a dual bios which flashes easily and screw ups are easily remedied by flicking to the alternate bios. Unlocking these cards has worked about 60% of the time for me and I can provide a proper bios with the unlock, but I will not unlock the card before shipping. Flashing the bios is your own deal, your own risk.

Stock clocks of these cards is 800 mhz, I've bumped them up to typically 900 mhz and some even higher. I typically can get about 360+ mhash/sec from a shader locked card and just under 400 mhash/sec from an unlocked card.

The card features a large heatsink and dual fans. In my setup I'm running 20 machines each with 4 cards with no risers. Cards are very close together only using a plastic DVI dust cap to space the cards from each other. I've ran this setup for 9 months with no fan failures. I've now survived an entire summer (up to 95F ambient) and a winter running outdoors (down to 25F ambient).

I'll accept 40 btc (exchange rate dependent) or $220 MTGOX USD cash redeem code per card. I'll do PayPal also, but you pay the fees. Shipping costs depend on where the card is going. I will of course combine shipping for purchase of multiple cards. I will also entertain discounted offers for multiple cards.

I will provide a receipt that should provide full warranty (unopened, new in box, etc) of 2 years. I can only assure warranty from the data of my purchase in August. But in short you can rest assured as even in a pinch I would be willing to file RMA via proxy if it was needed.

Here is the output for cgminer running on a system with 4 of these current revision cards; The second card is shader locked. The other 3 are unlocked. Mind you the temperatures and fan load are at 55F ambient.

 cgminer version 2.0.8 - Started: [2012-02-08 07:38:00]
--------------------------------------------------------------------------------
 (5s):1545.6 (avg):1537.9 Mh/s | Q:35130  A:31916  R:159  HW:0  E:91%  U:21.06/m
 TQ: 5  ST: 7  SS: 35  DW: 956  NB: 152  LW: 0  GF: 98  RF: 30
 Connected to http://blah:8332 with LP as user <unknown>
 Block: 000000649b2e2e844bd0df5a22d9c466...  Started: 08:31:20
--------------------------------------------------------------------------------
 Pool management GPU management Settings Display options Quit
 0: 880 760 1.100 64.0C 56% | 399.5/389.7Mh/s | A:8035 R:40 HW:0 U:5.30/m I:10
 1: 880 760 1.100 62.0C 74% | 343.3/356.8Mh/s | A:7341 R:35 HW:0 U:4.84/m I:10
 2: 890 770 1.100 58.5C 68% | 404.1/394.4Mh/s | A:8317 R:35 HW:0 U:5.49/m I:10
 3: 900 780 1.100 61.5C 35% | 397.5/397.0Mh/s | A:8223 R:49 HW:0 U:5.43/m I:10
--------------------------------------------------------------------------------

Here is a link to the card I'm selling;

http://powercolor.com/us/products_features.asp?id=313

This is a legit, no scam offer. Catch me in irc on FreeNode in #ozcoin. My handle is sunbreak or sunbreak2.

Here is a pic of the new cards next to my cluster. Sorry, not the best pic, but evidence none the less.

Oh oh .... and correct me if I'm wrong but xscreensaver has no place in this image. Everytime I notice my hash rate is down it is because I forgot to kill xscreensaver.

- sunbreak

Once you get booted up and logged into the X session you can execute 'xhost +' which will disable access control. You can also do 'xhost +192.168.1.xxx' to give access to a single IP address.

Then when you ssh to the machine remotely you need to ensure you set your environment variable for X before running the 'aticonfig' tool. So;

ssh -l user linuxcoin-host

user@linuxcoin:~$ export DISPLAY=:0
user@linuxcoin:~$ while true; do for n in 5 4 3 2 1 0; do aticonfig --odgt --adapter=$n | grep Sensor; done; echo; sleep 3; done

            Sensor 0: Temperature - 85.50 C
            Sensor 0: Temperature - 88.50 C
            Sensor 0: Temperature - 80.50 C
            Sensor 0: Temperature - 82.50 C
            Sensor 0: Temperature - 75.00 C
            Sensor 0: Temperature - 82.00 C


You can also start and stop the mining application remotely. If you want to use screen to run mining sessions on remote virtual terminals; easy just install it. You of course will need to repeat this is you reboot.

user@linuxcoin:~$ sudo /bin/bash
root@linuxcoin:/home/user# apt-get install screen

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  screen
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 624 kB of archives.
After this operation, 975 kB of additional disk space will be used.
Get:1 http://cdn.debian.net/debian/ wheezy/main screen amd64 4.0.3-14 [624 kB]
Fetched 624 kB in 5s (119 kB/s) 
Selecting previously deselected package screen.
(Reading database ... 69169 files and directories currently installed.)
Unpacking screen (from .../screen_4.0.3-14_amd64.deb) ...
Processing triggers for man-db ...
Processing triggers for install-info ...
Setting up screen (4.0.3-14) ...