CN Heavy and XMR stak low hash rates

edited May 5 in AMD Cards
I am hardly getting 500-600 hs from my 4 and 8 gb 570s and 580s yet I am constantly on the edge it seems for intensity or clock. What am I doing wrong? I am only getting around 15khs from 24 gpus whereas most friends post 800-1000h/s each (using windows / sbminer). Sample below for 8gb and 4gb rx 580 respectively:

(rx580 8gb 1250/2150): 600-660hs
{ "index" : 1,
"intensity" : 488, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
"comp_mode" : true
},
{ "index" : 1,
"intensity" : 488, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
"comp_mode" : true
}

(rx580 4gb 1200/2100): 550-620hs
{ "index" : 1,
"intensity" : 448, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
"comp_mode" : true
},
{ "index" : 1,
"intensity" : 448, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
"comp_mode" : true
}

much more intensity or clock and it starts giving me a cooldown error(even though not hot) or freezing everything up

Comments

  • I'm got around 700-750 H/s on RX 470 equipped with Elpida memory on CN-Heavy
    Looks likes too low intensity in your config
  • have you try to patch the memory with oneclicktiming using Polaris BIOS Editor?
    This will give you some more hash but that means you need to mod the BIOS which may break your warranty
  • Of course I'm using BIOS with patched memory timings.
    Also I've have different AMD OC profiles for algos - Dagger, CN respectively
  • edited May 7
    Cards are bios flashed and in the 29-31 mh on eth and eth dual mining. It seems to be a linux limitation? Their windows vram/pageF is in the 90gb for 12gpus. Is there a way to do something like this in linux? I was able to tweak maybe 5% more changing clock and memclock speeds, but this seems to be a linux vs windows problem. Most are easily in the 1000s for hashrates on 8gb rx580s and I have 16gb ssds.
  • edited May 7
    rfovlx510xa8.png

    Repost from http://forum.hiveos.farm/discussion/390/proshivka-bios-amd/p1

    90gb for 12gpus - it's windows memory manager issue which linux doesn't have
    You can't start at console custom task manager htop and you will see how small ram linux use and use carefully
  • pasting this it may help:

    on 8gb 4xx/5xx cards ...they can more than v7
    its crazy
    intensity 864 2 threads and im getting 1150 hash lol
    and less watts

    seems like heavy likes a little less intensity but once found it's flying
  • edited May 9
    Hi to all! Guys! Tell me please! Whats wrong?

    I have ASUS rx470 (570) ME (Samsung) with moded bios. On Ethereum i have around 30 Mh. On CN7-Heavy only 600 H.

    I am use this config.

    "gpu_threads_conf" : [
    // gpu: Ellesmere memory:3130
    // compute units: 32
    { "index" : 0,
    "intensity" : 800, "worksize" : 8,
    "affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
    "comp_mode" : true
    },
    // gpu: Ellesmere memory:3130
    // compute units: 32
    { "index" : 1,
    "intensity" : 800, "worksize" : 8,
    "affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
    "comp_mode" : true
    },
    ...
    and other GPU's

    I tried 2 thread but rig is go offline.

    "gpu_threads_conf" : [
    // gpu: Ellesmere memory:3130
    // compute units: 32
    { "index" : 0,
    "intensity" : 800, "worksize" : 8,
    "affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
    "comp_mode" : true
    },
    // gpu: Ellesmere memory:3130
    // compute units: 32
    { "index" : 0,
    "intensity" : 800, "worksize" : 8,
    "affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
    "comp_mode" : true
    },

    Thank you for your advance!
  • pistonbyte wrote: »
    pasting this it may help:

    on 8gb 4xx/5xx cards ...they can more than v7
    its crazy
    intensity 864 2 threads and im getting 1150 hash lol
    and less watts

    seems like heavy likes a little less intensity but once found it's flying

    Is that on a windows or Linux unit? I am incurring crashes and similar if I go too much further on intensity or clock. If I have 120gb ssds will that fix the issue or will it require dual boot os for windows on cn heavy vs linux cn7,cnlite,eth,etc.
  • Also APA alex... 800 intensity dual channel will be too much.
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