Good evening
I'm was looking for a different scrypt-algorithm coin I could try and for getting some feeling to it for the future and decided to give UTC a try. In the past I only did scrypt and keccah. Then moved on to Scrypt-N coins such as Execoin for which required some time finding the correct settings for my gpu's. And so, today, I'm trying to find the good settings UTC.
It looks like this is yet another variant of Scrypt and Vertcoin-CGMinerAleksNR3 no longer works.
After downloading Ultraminer, I thought about using the same config I used for the other scrypt-n coins, but they no longer worked and only got me hardware errors, reducing the WU to less and 5kh/s.
Back to the config design table, I've rebuilt them step by step, always getting a deluge of HW errors and little accepted shares. Until I got to this point:
"failover-only" : true,
"scrypt-jane" : true,
"sj-nfmin" : "4",
"sj-nfmax" : "30",
"sj-time" : "1388361600",
"api-allow" : "127.0.0.1",
"api-listen" : true,
"auto-fan" : true,
"gpu-fan" : "30-60",
"gpu-threads" : "2",
"gpu-dyninterval" :"7",
"gpu-engine" : "1050",
"gpu-memclock" : "1500",
"gpu-powertune" : "-20,20",
"gpu-reorder" : true,
"vectors" : "1",
"shaders" : "2048",
"thread-concurrency" : "16384",
"worksize" : "256",
"intensity" : "12",
"loopup-gap" : "2",
"temp-target" : "75",
"temp-overheat" : "78",
"temp-cutoff" : "80",
"queue" : "0",
"scan-time" : "1",
"expiry" : "1",
"no-submit-stale" : true
What's new compared to the past, (next to the specific scrypt-jane settings) are vectors, shaders, intensity and thread-concurrency of 16384. I always had to use 8192 for scrypt and keccah, 8191 for scrypt-n. The intensity decreased for 13 to 12. I am very surprised that tc 16384 and i 12 solved the deluge of hardware errors.
However, I've no idea what I can expect as hashrate with and MSI R9 280X Gaming? (Produced in October 2013, thus less luxury as it has no vrm-sensors and voltage locked by default)
Is the following what I should expect and be happy about, or is there something I can change to squeeze out some more kh/sec?
cgminer version 3.7.2 - Started: [2014-03-07 23:35:27]
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(5s):271.4K (avg):269.6Kh/s | A:5072 R:0 HW:0 WU:218.5/m
ST: 1 SS: 0 NB: 51 LW: 3073 GF: 0 RF: 0
Connected to utc.greekpool.eu diff 128 with stratum as user Syaoran.Akira
Block: 566e97ae... Diff:5 Started: [23:58:58] Best share: 2.58K
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[P]ool management [G]PU management [S]ettings [D]isplay options [Q]uit
GPU 0: 73.0C 1486RPM | 135.8K/136.8Kh/s | A:3040 R:0 HW:0 WU:131.3/m I:12
GPU 1: 69.0C 1352RPM | 132.5K/133.1Kh/s | A:2032 R:0 HW:0 WU: 87.2/m I:12
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Taking my electricity bill into consideration, I've undervolted those gpu's.
They came stock at 1200mV for 1020/1500 Mhz. Above snapshot is made by running them at 956mV for 1050/1500 Mhz.
Do you have some tips or advise for me?
I thank you for your time reading my post and look forward to your reactions
