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    XFX R9280x anyone running? What kind of rates?

    Mining
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    • M
      Matl Regular Member last edited by

      So I have two of these and a 3rd on the way by the end of the month.
      This is the 280x OC Black Edition.
      The best I’ve been able to get per single card is 600-620 KH/s with the settings below. Has anyone been able to achieve better? If so please share your specs and config, thanks!

      Memory: 1890
      Engine: 1180
      Powertune: o
      Shaders:0

      My rig:
      1 x SILVERSTONE Strider Gold Evolution SST-ST1200-G Ev
      1 x ASUS M5A99FX PRO R2.0 AM3+ AMD 990FX SATA 6Gb/s
      1 x AMD 6300 Vishera 3.5GHz (4.1GHz Turbo) Socket A
      1 x G.SKILL Ripjaws X Series 4GB (2 x 2GB) 240-Pin DDR
      1 x DIYPC Alpha-DB6 Black Acrylic ATX Bench Case Bench
      1 x 8GB USB thumb drive
      2 x XFX R9 280X OC Black Editions

      Ubuntu 12.04
      xfce
      CGMiner 3.7.2

      I greatly appreciate any similar rig configs or suggestions.
      Thanks.

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      • A
        aatje92 last edited by

        Try engine 1050 mem 1750 thread concurrency 8192 gpu-threads 2. HAve a 7970 but maybe it works for you.

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        • S
          svennand Regular Member last edited by

          1080/1500 seems to be the sweetspot for 7970/280x
          At least the cards i have tried.

          HOWEVER if the XFX 280X is anywhere near the old XFX 7970 your shit out of luck, cause that card sucked! The max i could get out of my two xfx 7970 was around 600 each, And after one month all the fans failed (their “hydro” bearing stuff is pure garbage)

          I will never buy a XFX brand gpu again! Im also guessing that others follow this as well given that ALL 280X cards are completely sold out everywhere, except xfx that is even “downpriced” atm cause they cant get rid of them, theres plenty of them available.

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          • A
            aatje92 last edited by

            With the settings above, i’m getting 730 kh/s on my ‘old’ XFX HD7970 :p

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            • V
              vizay Regular Member last edited by

              [quote name=“aatje92” post=“44534” timestamp=“1387096918”]
              Try engine 1050 mem 1750 thread concurrency 8192 gpu-threads 2. HAve a 7970 but maybe it works for you.
              [/quote]

              I have the same XFX 280x mentioned in this thread. Tried the settings in the quote, things went boom and computer restarted so that was a no go.

              Currently I’m also getting 600 flat from my xfx. Don’t want to tweak to much right now either since I can’t hard-restart my farm remotely at the moment.

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              • A
                aatje92 last edited by

                What intensity?

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                • S
                  specter last edited by

                  [quote name=“aatje92” post=“44534” timestamp=“1387096918”]
                  Try engine 1050 mem 1750 thread concurrency 8192 gpu-threads 2. HAve a 7970 but maybe it works for you.
                  [/quote]

                  What’s your work size, thread concurrency, and so on?

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                  • S
                    svennand Regular Member last edited by

                    [quote name=“aatje92” post=“44542” timestamp=“1387098801”]
                    With the settings above, i’m getting 730 kh/s on my ‘old’ XFX HD7970 :p
                    [/quote]

                    then you have one of the few early XFX that is outside of their mainstream versions:)

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                    • S
                      svennand Regular Member last edited by

                      [quote name=“aatje92” post=“44557” timestamp=“1387104084”]
                      What intensity?
                      [/quote]

                      7970/280X should allways be i 13, higher throws hw error and is no point.

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                      • V
                        vizay Regular Member last edited by

                        I’ve got my suspicions that the card can actually run stable on higher clocks, and push out around 700 if one play around a little with the volt settings. However, the win in this can be discussed as the card will cost more power that it might be worth.

                        As for me, I prefer a stable 600 from that card rather than 700 that crashes on me all the time :)

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                        • M
                          Matl Regular Member last edited by

                          [quote name=“aatje92” post=“44534” timestamp=“1387096918”]
                          Try engine 1050 mem 1750 thread concurrency 8192 gpu-threads 2. HAve a 7970 but maybe it works for you.
                          [/quote]

                          Thanks. I’ll try that. Seems odd running the engine clock lower than stock though. (1080)

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                          • M
                            Matl Regular Member last edited by

                            [quote name=“aatje92” post=“44542” timestamp=“1387098801”]
                            With the settings above, i’m getting 730 kh/s on my ‘old’ XFX HD7970 :p
                            [/quote]

                            Any chance you could share your full config please?

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                              aatje92 last edited by

                              [quote name=“svennand” post=“44582” timestamp=“1387108497”]
                              [quote author=aatje92 link=topic=6015.msg44542#msg44542 date=1387098801]
                              With the settings above, i’m getting 730 kh/s on my ‘old’ XFX HD7970 :p
                              [/quote]

                              then you have one of the few early XFX that is outside of their mainstream versions:)
                              [/quote]

                              Lucky me :D. I also flashed it with a sapphire bios i believe. [quote author=specter link=topic=6015.msg44572#msg44572 date=1387106663]
                              [quote author=aatje92 link=topic=6015.msg44534#msg44534 date=1387096918]
                              Try engine 1050 mem 1750 thread concurrency 8192 gpu-threads 2. HAve a 7970 but maybe it works for you.
                              [/quote]

                              What’s your work size, thread concurrency, and so on?
                              [/quote]

                              thread concurrency is 8192 as in my post, worksize etc is all default.

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                              • M
                                Matl Regular Member last edited by

                                A friend of mine made a few tweaks to my cards and got them above 700Kh/s
                                I=13, gpu=1000, mem=1500, gpu threads=2
                                Everything else is stock. These cards are Very temperature sensitive, the more cold air you can get on them the higher the hashrate.

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                                • S
                                  scruffters last edited by

                                  I have 2 x XFX R280X on my second rig. For what they cost I’m quite pleased with the performance.

                                  These are stable and can be undervolted.

                                  Achieving just short of 700Kh/s with no HW errors. From what I can see they delivery no more if you clock the gpu beyond 1000.

                                  As above:

                                  I=13, gpu=1000, mem=1500, gpu threads=2

                                  Running at 72 degrees. Luckily the ambient air temp in my garage is fairly low around West Yorkshire at this time of year.

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                                  • M
                                    Matl Regular Member last edited by

                                    [quote name=“scruffters” post=“47673” timestamp=“1388080062”]
                                    I have 2 x XFX R280X on my second rig. For what they cost I’m quite pleased with the performance.

                                    These are stable and can be undervolted.

                                    Achieving just short of 700Kh/s with no HW errors. From what I can see they delivery no more if you clock the gpu beyond 1000.

                                    As above:

                                    I=13, gpu=1000, mem=1500, gpu threads=2

                                    Running at 72 degrees. Luckily the ambient air temp in my garage is fairly low around West Yorkshire at this time of year.
                                    [/quote]

                                    I have mine running in my upstairs office which has no hvac ductwork so it tends to be cooler anyway. (North Central US)
                                    Today I finally got around to setting up some flexible 4" PVC drain pipe running along the wall behind my desk so that it is closed under the inside window with an old computer case 4" fan drawing cold air (5F-20F) into the pipe. I have styrofoam taped up tight to the window to close the gap but let a couple inches open on the opposite end so warm air can be drawn in to mix with cold air. The at the output end of pipe I have another small 4" desk fan drawing the cool air out and directly onto my two cards.
                                    This is a temporary solution to keep temps lower until my riser cable arrives. I am now getting a minimum of 1390KH/s with many rises of 1440-1480KH/s for the two cards combined.
                                    I’ve been mining with give-me-coins.com

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