Zvi --- I am really enjoying 2.6.14 on my SP20s; One thing is needed to make the scheduling work well for many of us home miners;
Can you please add an option to set the fan speed, rather than just leaving it as auto
You can customize the fan speed if you run your scheduling via text files and use cron jobs. See this post: https://bitcointalk.org/index.php?topic=521520.msg10358008#msg10358008I run all of my miners via these crons (8 of them) and it works great. Thanks! |
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There is an unofficial thread for the SP20s. At this time, I am looking at underclocking my SP30;
Currently pulling 3KW and 4.5T
Does anyone of the top of their heads have the best settings for a SP30 for the best hash/watt/fan rate?
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Zvi --- I am really enjoying 2.6.14 on my SP20s; One thing is needed to make the scheduling work well for many of us home miners;
Can you please add an option to set the fan speed, rather than just leaving it as auto
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Another small miner with a block found!! Now we need a 1th to find one  I was pretty close to that -- running an under clocked SP20 -- 1.3T if its not too much trouble what is your voltage and watts settings,thanks Follow this thread for all the information https://bitcointalk.org/index.php?topic=872014.880;topicseen |
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Another small miner with a block found!! Now we need a 1th to find one I was pretty close to that -- running an under clocked SP20 -- 1.3T |
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What I love about this pool is the amount of Low (less than 50th/s) sized rigs that are finding blocks.
This time a 15th/s Congrats on your find.
nhminer does a happy dance! |
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If you are a seller: Right now may be a nice time to sell some of your used SP20's for a nice premium... Right before the next generation is released but after all the new units have been sold out by the manufacturer. if you are a buyer: wait until Gen3 gets released and then purchase SP20's at a discount from the big dogs unloading to purchase the best new hardware Anyone in the SF Bay area want to buy a pair of SP20s? |
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anybody knows how to set the fans lower than 10 Percent? Is there a way to ssh it?
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 |
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Serious question. Looking for opinions
What is the minimum balance, making it worthwhile to stake in the XST wallet? 100, 10K, 100K, 1M ??
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Just loaded up 2.6.10 to try out the scheduling, and have a few questions about how the 'regular' settings factor in:
1) If i want to range from 0.62-0.70V I assume I either need to fix the fan speed based on quietly cooling the max speed (say 20-30%) or use AUTO. I really want to run the fan at 3-6% during daytime hours though, does auto bring it down that low?
2) what about the max wattage? I imagine the max wattage has to be set high enough that it is sufficient for the higher power voltages
EXAMPLE: I want an SP20 to perform at 1100/550w from 7-11am and 5-7pm, 1300/700w from 11am-5pm, and 1500/950W from 7pm-7am. The entire time i want it to keep pretty quiet, no more than 8% fans in the daytime and <40% is acceptable for nighttime
-what is my starting voltage (if i do 0.625 will the power-mode take forever to reach 0.71V? if i set 0.7V, will the opposite happen trying to reach 0.63V?)
-what is my set voltage for each time frame (I have a rough idea, but not exact numbers - I'm guessing 0.63, 0.65, and 0.71 respectively)?
- whats my max wattage (190W to limit the unit to the desired ~950W total)
nighttime power is about 35% cheaper so i want to make use of it without having my daytime fans obnoxiously loud
Agreed; 2.6.10 is pretty cool, but please add a fan option to the schedule |
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Is cgminer supposed to be upgraded automatically when the firmware is upgraded? I just performed the firmware upgrade on one of my SP20s and it still shows cgminer 4.7.0 on the dashboard page.
Try a Reboot from the miner's home page. That's what did it (cgminer 4.8.0) for me. Tried the reboot, still 4.7.0 cgminer 4.8 is only active when you set the 2 flag after version 2.5.64 BTW -- did we find out what new features 2.6.1 has? |
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noob question: is that "2" flag supposed to add extramining power?
No, it is an optimization if you use westhash, or other coin switching services |
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Let us know what you want to see in Spondoolies-Tech's firmware… We are open to suggestions! What do you want to see implemented in our next firmware releases? We want to hear from you, although we cannot make any promises to implement any suggestion, we will try out best to make it work. Post suggestions here in the thread…
I would like to see target temperature support whereby the firmware constantly adjusts fanspeed to the lowest possible RPM that will maintain the device just below a target temperature. Where cgminer drivers have had the ability to adjust fanspeed continuously, I have coded up this feature into them but the fanspeed control is not within cgminer on sp gear. Temperature range along with scheduling would be nice; Support other pool options in addition to Failover; Unreasonable wishlist -- Allow me to set my efficiency and have the SP20 auto adjust watts/volts/temp/fan/etc to obtain |
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So, why does every day that goes by my SP20 keeps clocking itself a tad lower ... losing like 3GH-5GH/day ... and never goes back up? ... unless I restart mining...
Contact zvi @ sp tech support; I had a SP20 that did the same, and they RMA'd it for me. It is not you; something a little odd with that unit |
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When I switch off my SP20, they come back in 5-10 min. First time I thought that they went dead too. Did you wait that long?
Yeah, they've been on for about 80 minutes now...... Are you able to see them on " http://myminer.io/" ? If working properly they should nicely be showing there. If truly nothing finds them there is always recovery through SD image. Nope - nothing..... Well, thanks for the suggestions guys, it's appreciated - but I've resigned myself to the fact that I've got to do a SD recovery on them I'm afraid  Wish I knew what caused it though......  can you ping them? can you SSH to them? |
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WARNING: Radical ideas folllow...
My 2 SP20 boxes run underclocked on 850W supplies getting between 1300-1350 with temperature reporting 33/78
settings are .68/.,62/.68/.62 with 200W on each
I lay my box on its side with the network connection down.
I run a 120mm fan outside the box pulling air out by the connectors
I've reversed my internal fan to push air into the box
and ... I run my reversed fan at 5%
Ahh -- finally peace!
The following is not recommended. It can damage your box, void your warranty and cause you stress
To allow setting the fan to 5%
ssh into the miner
cd /var/www/SP2x/
sed -i 's/($i = 20; $i < 101; $i += 10)/($i = 00; $i < 101; $i += 05)/' settings.php
Now, if I can only get this to persist across box reboots
you can change the following file to lower the fan speed below 20. vi /etc/mg_custom_mode
FAN:10 VS0:650 VS1:650 VS2:650 VS3:650 VMAX:700 AC0:288 AC1:288 AC2:288 AC3:288 DC_AMP:170 Does that add an additional option, or set the fan to 10? I change the settings script, so I can play with the different rates |
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WARNING: Radical ideas folllow...
My 2 SP20 boxes run underclocked on 850W supplies getting between 1300-1350 with temperature reporting 33/78
settings are .68/.,62/.68/.62 with 200W on each
I lay my box on its side with the network connection down.
I run a 120mm fan outside the box pulling air out by the connectors
I've reversed my internal fan to push air into the box
and ... I run my reversed fan at 5%
Ahh -- finally peace!
The following is not recommended. It can damage your box, void your warranty and cause you stress
To allow setting the fan to 5%
ssh into the miner
cd /var/www/SP2x/
sed -i 's/($i = 20; $i < 101; $i += 10)/($i = 00; $i < 101; $i += 05)/' settings.php
Now, if I can only get this to persist across box reboots
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I'm considering hosting some hardware at Toom.im. Any reason why or why I shouldn't? Any existing customers of theirs have anything to say about them?
M
I have 5 miners hosted there and am very happy with their support |
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There was no power to the DC2DC at time of miner_gate_arm start. My primary suspicion would be that the PSU was off, the connector was not inserted properly or the shortcut on the PSU motherboard connection was not good. Please try to make sure the PSU is running and the connectors are good, try to boot the units in bad configuration again and if you still get the problem send me logs (from webUI->"Settings tab"->"Get Logs"). Send to my mail "zvi@spond..." with reference to this post.
Thanks for the reply Zvi, as they working fine now now with the mixed PSUs I'm not going to mess with them, but I did ensure cables were connected properly and the same PSUs are working fine on other gear now... I have experienced the same problem with an Antec 850; I think the sp20 overdrives it, the power protection cuts in; after 5 minutes it resets and starts again at a slightly lower rate. Does the SP20 do adaptive power management? |
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The only competition in mining is an orphan race. Otherwise it doesn't matter when anyone finds a block coz you simply switch your work item to a new one and continue searching. This switch also happens every 30 seconds and every time anyone on the planet finds a block. Every block found is "randomly unaffected" by every other block found, other than a work switch. So for example, if someone finds a block here, the next person who finds a block here could find it 1 second later, or 100 days later - they are "randomly independent" of each other. There is no competition, there is no spoon Gross simplification ahead If you need to keep your competition metaphor ... imagine you are in a 2 week long race to find one of 2016 blocks before the difficulty changes; Everyone who solves a block in that time period wins. So, Kano is absolutely right in the sense that finding one of these 2016 blocks is independent of what else has been found. The first 2016 finishers all win. And in about 2 weeks, the race ends and a new 2016 block race starts, which might be a little harder or easier than the last. This all happens transparent to the miner who is happily working on a new math problem provided by the server every so often |
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