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    2x Gigabyte r9 290 settings

    Mining
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    • A
      Apozah last edited by

      Hi guys,

      I’ve spent the last couple of days searching through various forums becuase I am not able to bring my Dual R9 290 Gigabyte cards to the expected Kh/s rate. Since nothing brough me the results I was hoping for, I am trying to find help here.

      My Rig setup is :

      • Windows 7 home premium 64-bit OEM
      • Motherboard : MB GBT-990XA-UD3
      • GPU : 2x VGA GBT R9 290 D5 4GB GDDR5
      • RAM : RAM-CORSAIR- DDR3 2x 2048 MB 1600 MHz
      • HDD : CAVIAR Blue-500 GB SATA3 WD5000AAKX
      • CPU : AMD-Sempron 145 BOX AM3
      • PSU : ENERMAX Revolution87 1000 W

      Drivers, apps, programs:

      amd_catalyst_13.11_betav9.5
      AMD APP SDK
      cgminer 3.7.2-windows
      CrossfireX is disabled

      My so far best average results are :

      [code]
      GPU 0 - 84.0C - 563.0Kh/s - WU: 555.0/m
      GPU 1 - 84.0C - 565.0Kh/s - WU: 510.0/m
      [/code]

      The settings used for this are the following :

      [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 16 --thread-concurrency 28160 --auto-fan --temp-target 85 --temp-overheat 95 --temp-cutoff 99 --temp-hysteresis 3
      –gpu-fan 40-90 -w 256 -v 1 --lookup-gap 2
      [/code]

      Thread-concurrency is 28160 (Shaders on the GPU multiplied by 11) since a higher multiplier causes errors.

      I tried the intensity settings between 8 - 20 and I do get a slightly higher Kh/s rate (about 50 more, not too much higher) than with the -I 16.

      I also tried to use a scale of values for gpu memclock, powertune, engine settings which I found on the internet, unfortunately without any major results. (going for the highest recommended values crashes the system)

      In one of many attempts to increase the Kh/s of the GPUs, I was able to change the -I to 20 on GPU 0 but I had to leave the -I 13 on GPU 1 (increasing above 13 on GPU 1 while maintaining -I 20 on GPU 0 would crash the system). I did this without:

      [code]setx GPU_MAX_ALLOC_PERCENT 100
      setx GPU_USE_SYNC_OBJECTS 1[/code]

      In this case, the GPU 0 was able to produce slightly over 800 Kh/s while GPU was slightly under 500 Kh/s.

      Now, when both GPUs are running with the settings and same -I 16 or 20, I can get on average 600 Kh/s from both. But I was able to extract a little bit over 800 Kh/s on one GPU alone and therefore, I pressume that it can be extracted from both at once.

      What could cause this low Kh/s or what could help to raise it?

      Do you guys have any ideas or tips?

      Thank you very much in advance.

      1 Reply Last reply Reply Quote 0
      • U
        uncle_muddy administrators last edited by

        It looks to me like your running stock on the memory and clock speeds from your command line.

        Look in you cgminer directory for the scrypt-readme.txt file and have a good read of what it says, then add the following options to your command line

        –gpu-engine xxxx --gpu-memclock xxxx

        Get yourself over here https://litecoin.info/Mining_hardware_comparison to have a look at what settings other people are using for your type of card.

        Let us know how you get on

        UM

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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

            1 Reply Last reply Reply Quote 0
            • 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.

              1 Reply Last reply Reply Quote 0
              • 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.

                1 Reply Last reply Reply Quote 0
                • 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.

                  1 Reply Last reply Reply Quote 0
                  • 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.

                      1 Reply Last reply Reply Quote 0
                      • 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?

                          1 Reply Last reply Reply Quote 0
                          • 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]

                            1 Reply Last reply Reply Quote 0
                            • 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 :-\

                                    1 Reply Last reply Reply Quote 0
                                    • 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?

                                      1 Reply Last reply Reply Quote 0
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