Topic: Unofficial Spondoolies SP20 thread - page 28. (Read 126198 times)

I just finished setting up my new SP20 Nano farm up in the basement.

I used a d-link DIR-615 with dd-wrt installed to make a client bridge and hooked all the SP20's up with ethernet from the router.

http://i.imgur.com/Lv4T3eI.jpg

Downloaded firmware 2.6.14, set voltages to 0.62 startup and 0.636 max.

Getting about 1125GH/s per unit at ~590W. Running 2 on a 1300W PSU and the other on a 1000W PSU. Fan speed at 20% seems to keep all ASICs at 85c and exit temps at 60c for the top shelf unit. You can't even really hear them at all upstairs unless you stand by the stairway.

Definitely pleased with this purchase!

ssh
vi /etc/mg_custom_mode

its right in there, change the value to whatever you like. (the Sp20 is very managable around 4%)

:d thank you very much.

Do I need to reboot the device afterwards or does it take effect when just restarting miner?

windows user 

File protocol SCP. your adress of miner port 22 user root your pasword

ok, I already figured out how to use Vi... with WinSCP i couldnt even log into the devices

.

unfortunately im still having issues changing fanspeed..
I already found the /etc/mg_custom_mode but I cant save it... or after all it just doesnt safe the input settings

can anybody tell me please step by step, how to change it via ssh?

cd /var/www/SP2x/
sed -i  's/($i = 10; $i < 101; $i += 10)/($i = 01; $i < 101; $i += 01)/' settings.php

that one just does nothing

Thanks! That helped

screen shot
 your pool needs that for it to work

You have to add #xnsub to the pool server line for it to take effect. Setting 2 in the settings only makes extranonce subscription available for use, adding #xnsub to the URL enables it for the pool.

Look here this should help https://bitcointalksearch.org/topic/m.10314356

thank you for that. But I absolutely dont know what that means
furthermore, I enabled extranonce.subscription via settings ("2"). But Nicehash still telling that its not enabled.

yeah could work.  I would do nice/west hash   higher say   1.16

ssh in and then

cd /var/www/SP2x/
sed -i  's/($i = 10; $i < 101; $i += 10)/($i = 01; $i < 101; $i += 01)/' settings.php

sorry but... what the cow is this 

anybody knows how to set the fans lower than 10 Percent? Is there a way to ssh it?

philipma1957, I've got more thoughts about pool strategy. I guess I'll continue the conversation here, unless you think we should create a separate pool strategy thread.

I've had fun with the above pool strategy, but it's been a bit harrowing being primarily on a high variance pool. If it wasn't for that fairly recent string of insane luck on kano.is, I'm not sure if I'd be ahead.

I know that everyone says that variance doesn't matter, long term. But if you're gunning for a short term ROI (relatively speaking), it seems like low variance is critical as difficulty goes up.

As the difficulty was floundering up until recently, I haven't stressed too much about variance and have been playing on smaller pools. But now I'm 80 days in with my SP20 and about 75% of ROI, and the difficulty seems to be rallying a bit. So rather than gambling on smaller pools, I'm thinking of going the conservative route of low variance until I hit ROI. The problem is that I don't like contributing to the dominance of larger pools.

So here's what I'm thinking. I'll set NiceHash/WestHash as the primary, but with a low profitability threshold. I'm thinking about 1% over nominal BTC/THs/Day. With a 2% NiceHash fee, basically this means I'm agreeing to lose 1% over nominal to mine there, which seems fair. Then I'll set up f2pool.com as the secondary.

The idea here is that as long as NiceHash is doing slightly better than nominal BTC, I'll mostly be mining there. This way I'll capture nominal profits as well as any upticks. And when NiceHash is in the dumps, the miner will revert to f2pool.com. Sure f2pool.com has high fees, but if it pays for every submit that means that the fees are the only cost of frequent bouncing between NiceHash and f2pool.com.

I'm hoping that by mostly mining on a rental site, I'm effectively contributing to decentralization (hopefully), while enjoying lowering variance.

How does this strategy sound to you?

Access to the latest  techmology is the  home miners biggest  dwawback as there is not much incentive for  manufacturers  to sell them retail.

Bitfury  and knc are  pretty  much private companies  now  self mining. Asm is shareholder amd investment vehicle so is wolf. Spindoolies is comcentrating on wholesale. Bitmain could be next. Everyone is saving limited  resources and moving to shared or cloud mining.

the evga 1300 g2 are 16 ga.  I have never had an issue with them.

and I will say running the gear beyond a 240 watt is risky I set mine at 200 and underclock.