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    2x Gigabyte r9 290 settings

    Mining
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    • T
      TrollboxChamp Regular Member last edited by

      -I 19 -g 1 -w 512 --thread-concurrency 32765

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      • T
        TrollboxChamp Regular Member last edited by

        4 gb of ram is kinda low should have 8

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        • R
          rob_1990 last edited by

          [quote name=“TrollboxChamp” post=“53685” timestamp=“1390325642”]
          4 gb of ram is kinda low should have 8
          [/quote]

          I had some problems with only 4GB, but I have now a 5 card rig. But with 4GB it wouldn’t hash. With 8GB its fine. Someone mentioned it is something to do with the new higher thread concurrency cards needing more RAM.

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          • T
            thisaznboi88 last edited by

            I had issue with them throttling. Opened a window and they are hovering around 92* doing 770-818kh per card

            setting is w/e is on guiminer scrypt alpha. intensity is 20

            check if your card has a switch to change the bio to urber mode.

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            • A
              Apozah last edited by

              Hey guys,

              thanks for the RAM tip. I am now running 8 GBs of RAM on the Rig and I am not experiencing any crashes when increasing some of the settings. With the incrased RAM, I was able to tune the GPUs to the following rates :

              [code]
              GPU 0 - 83.0C - 681.9Kh/s - WU : 626.7/m
              GPU 1 - 83.0C - 672.3Kh/s - WU : 625.7/m
              [/code]

              https://litecoin.info/Mining_hardware_comparison - here, I found the settings for the R9 290 with a hash rate of 817, but when I changed the settings in cgminer, I would only get about the same hash rate that I have now +/- 10 units.

              My current settings are now :

              [code]
              setx GPU_MAX_ALLOC_PERCENT 100
              setx GPU_USE_SYNC_OBJECTS 1

              cgminer.exe --scrypt -o stratum+tcp://stratum.wemineftc.com:4444 -u XXXXX -p XXXXX -I 20 --thread-concurrency 30592 --gpu-memclock 1450 --gpu-engine 1026,1005 --auto-fan --temp-target 85 --temp-overheat 95 --temp-cutoff 99 --temp-hysteresis 3 --gpu-fan 40-90
              [/code]

              Since the gpu-engine and gpu-memclock values from different users (forums, google, etc…) did not bring any dramatic results, the highest rates that do not crash my gpu driver or system are memclock at 1450 and engine at 1026 on GPU0 and 1005 on GPU1. GPU engine above 1005 on GPU1 causes the cgminer to label the GPU as “SICK”.

              Both GPUs were bough at the same time, both are identical and both are attached directly to the motherboard.

              Any thoughs about why the rates have to be difficult? And can I bring my hash rate above the current values with something else?

              Thanks again.

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              • U
                uncle_muddy administrators last edited by

                Your running a Quad rail PSU,

                [img]http://www.kitguru.net/wp-content/uploads/2012/01/ACC_8329.jpg[/img]

                So looking at that you have a max of 249W per rail, so you need to work out what connectors are on what rails and then make sure you split things up properly or your going to be getting problems from the PSU.

                Try taking 1 of your cards out, and then try this as a command line and let me know what you get

                cgminer.exe --scrypt -o stratum+tcp://stratum.wemineftc.com:4444 -u XXXXX -p XXXXX -I 20 --thread-concurrency 37265 --gpu-memclock 1250 --gpu-engine 1000 --auto-fan --temp-target 85 --temp-overheat 95

                UM

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                • K
                  ken last edited by

                  I have one 290 in my rig and I have gotten the best results with stock clocks. I’m getting right around 800 khash/s with it. Stock clocks and undervolted.

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                  • A
                    Apozah last edited by

                    These are the best results I get with just one card plugged in using your suggested settings:

                    [code]
                    GPU 0: 80,0C - 642,4Kh/s - WU:595,4/m
                    [/code]

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                    • U
                      uncle_muddy administrators last edited by

                      What do you get if you go with stock settings?

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                      • A
                        Apozah last edited by

                        These are the results with only -I 20:

                        [code]
                        GPU 0: 82,0C - 604,1Kh/s - WU:555,4/m
                        [/code]

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                        • U
                          uncle_muddy administrators last edited by

                          So you ran the following

                          [code]cgminer.exe --scrypt -o stratum+tcp://stratum.wemineftc.com:4444 -u XXXXX -p XXXXX -I 20[/code]

                          and thats what you got?

                          Try deleting any .bin files from you cgminer directory and starting again

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                          • A
                            Apozah last edited by

                            I´am deleting those .bin files everytime… I tried to reset my PC and run it one more time with just -I 20 and I did get a little bit more, about 635Kh/s.

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                            • U
                              uncle_muddy administrators last edited by

                              Have you followed the instructions in the SCRYPT_README within your cgminer directory?

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                              • A
                                Apozah last edited by

                                Yes, from the first time I tried to set it up… Don´t know what else to try, or what could be wrong :-\

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                                • U
                                  uncle_muddy administrators last edited by

                                  where abouts in the world are you? do you want to have a skype session to see if we can’t resolve at least some of your issues?

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