Miner tuning, makes sense or not ?
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While most of the miners are trying to get the max hashrate out of the rigs I was wondering if there’s more to tune. I know there’s a relation between hashrate, accepted shares, rejected shares, difficulty and Work Utility (WU in cgminer) and finally the rewarded coins.
Is there more to tune on the miner than just the hash rate ?
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In my opinion Hash rate is not the end game, instead power consumption, efficiency, and stability is more important.
When you start running multiple rigs 100kh or even 1000kh lost is not as important as stability. -
I like that last post. See, if you are down 3% of the time on average, then reducing your speed/power consumption by 2% would make sense, all the way up to 3%. I’ve heard of rigs being set to reboot every so often, and then kick over to mining again, because they are that unstable.
I like to push my systems just below that point.
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I used to run them 4% underclocked, 10% undervolted to get around 30% less power used, stability, less fan noise, less heat, lesser PSUs. Huge difference.
Also I highly recommend to change the termal paste, I got significantly lower temps and fan revs when I put Gelid GC extreme. One tube is just sufficient for 15 GPUs if careful. Easier to apply while GPU is still warm.
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Got my Gigabyte r9 280x recently and put 4 of those sucker in a rig…
Stock Voltage = 1.200 and getting 735 hash per card = 1300 watt
Reduced Voltage = 1.075 and getting 710 hash per card = 1000 watt
Lost 2% performance, gained 23% power efficiency :D and stock fan are running 2000 rpm.
No point squeezing max hash rate.
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I run a few different settings, I have a power optimized setting and a flat out mining setting on all my cards. Read my post here:
[url=http://forum.feathercoin.com/index.php/topic,4176.0.html]http://forum.feathercoin.com/index.php/topic,4176.0.html[/url]
