Hi,
I'm running a dual miner Claymore v9.3 rig with 6x Sapphire RX480 Nitro+OC 8GB cards (11260-01-20G) - Samsung Memory
Power supply is a Corsair ATX 1200i.
Modifications:
I'm using v4.rom from Jukebox on five of the cards (GPU0,2,3,4,5) and vdrop+.rom on one of them that has issues. (GPU1)
(These ROMS appear to overclock the memory and/or tighten the timings while reducing the CPU clock. vdrop+.rom is slightly more slower/conservative.)
I use WattTool-.92 to drop the voltage on all of them by 100mv
The Driver is 16.12.1 (patched to pass driver signature checks.)
Power from the wall is about 1050W and card temperatures are around 63C.
The rig is stable in that it does not hang or crash, Claymore is setup to reboot the machine on error, and it'll run all day like a champ:
ETH - Total Speed: 175.402 Mh/s, Total Shares: 1879, Rejected: 109, Time: 08:14
ETH: GPU0 29.727 Mh/s, GPU1 29.268 Mh/s, GPU2 29.792 Mh/s, GPU3 26.966 Mh/s, GPU4 29.807 Mh/s, GPU5 29.843 Mh/s
DCR - Total Speed: 5262.069 Mh/s, Total Shares: 4445, Rejected: 84
DCR: GPU0 891.816 Mh/s, GPU1 878.032 Mh/s, GPU2 893.747 Mh/s, GPU3 808.985 Mh/s, GPU4 894.204 Mh/s, GPU5 895.285 Mh/s
Here is my config:
-r 1
-retrydelay 5
-epool stratum+tcp://daggerhashimoto.usa.nicehash.com:3353
-ewal xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-epsw x
-esm 3
-allpools 1
-allcoins 1
-estale 0
-tt 75
-ttli 80
-fanmin 66
-fanmax 100
-dpool stratum+tcp://decred.usa.nicehash.com:3354
-dwal xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-ttdcr 75
Now here is my concern / question: Is such a high rejection rate
normal? That's about a %5 reject rate for ETH and %2 for DCR.