HASHRA - LUNAR SERIES - ASIC SCRYPT MINERS - page 25.

jjj0923

sr. member

Activity: 266

Merit: 250

Quote from: coinwarrior on June 11, 2014, 05:21:00 AM

Quote from: davecoin on June 10, 2014, 04:00:48 PM

At clock speed 291, LL hashes about 12.8mh/s, 444 watts, still 6% HW errors.

Also, < 1% rejects on clevermining.

I switched from clevermining to http://coinking.io/?r=11339 I had over 2% rejects on clevermining and now I am down to 0.95 on
coinking.io - they also do poolmining and the poolside hashrate seems to improve maybe as a result of the lower reject rate? Anyhow I am happy with it and they have a referral program which compensates for the 1 percent pool fee they charge. Before I get flamed for shamelessly promoting this pool please try it our yourself and let all know if it works. I am not affiliated with them in anyway and yes if you use the link above I think I would get the referal bonus. Let me know what you guys think!

what kind of return are you getting in terms or btc/mh/day from clevermining?

wellfried

newbie

Activity: 18

Merit: 0

Quote from: wellfried on June 10, 2014, 04:00:25 PM

Quote from: jjj0923 on June 10, 2014, 03:54:16 PM

Quote from: wellfried on June 10, 2014, 03:51:14 PM

I finally got my y Lunar Lander today and it isn't working. I tried with a laptop (downloaded the software), and with the RaspPi that is included (which I had to power with another cable because it wouldn't join the internet - thanks to the thread for heads up on that); and on both *AS SOON* as CGminer starts, the unit shuts down. I get this error in the log on the Pi:

Icarus Detect: Test failed at /dev/ttyUSB0: get 00000000, should: 00038d26

Not feeling great about this.

My PSU is rated platinum and at 1300W - pretty sure that's not the problem. I have each plug isolated, so I don't think that is the problem. Since the error is USB related, I tried swapping out the USB cable - no dice.

I am open to suggestions.

well - don't use their power cable to power the pi - myself and other have had problems. In addition the ethernet cable they supplied did not work. In addition make sure you're nit plugging in the additional 2 wire plug from the pcie cable.

send a message to [email protected] - their tech guy is very responsive.

Thanks - I did take the forum's advice and used a different power cable for the Pi, so thanks for that. I am using my own ethernet cable, and I can browse to the Controla interface. And no, I am not plugging in the +2 on the PCI-E connections. The thing powers up fine... makes lots of noise and even some heat... but then instantly shuts down once I ask to to do some mining...

So working with Hashra support, it appears I have a defective unit. Now it gets interesting. While the support team was responsive and proactive, it will be interesting to see how this plays out. Hopefully Hashra views this as an opportunity to demonstrate excellent customer service. Stay tuned...

coinwarrior

newbie

Activity: 13

Merit: 0

Quote from: davecoin on June 10, 2014, 04:00:48 PM

At clock speed 291, LL hashes about 12.8mh/s, 444 watts, still 6% HW errors.

Also, < 1% rejects on clevermining.

I switched from clevermining to http://coinking.io/?r=11339 I had over 2% rejects on clevermining and now I am down to 0.95 on
coinking.io - they also do poolmining and the poolside hashrate seems to improve maybe as a result of the lower reject rate? Anyhow I am happy with it and they have a referral program which compensates for the 1 percent pool fee they charge. Before I get flamed for shamelessly promoting this pool please try it our yourself and let all know if it works. I am not affiliated with them in anyway and yes if you use the link above I think I would get the referal bonus. Let me know what you guys think!

anarchoatheist

member

Activity: 70

Merit: 10

As a test I wrapped both ends with cardboard to see if it would reduce noise. It seemed to work a bit. Its about 15-20% quieter. I noticed though that a lot of noise comes out of both ends still (mostly exhaust). The sound waves are bouncing off of the cardboard back and forth then exiting. I'm gonna order some acoustic egg crate foam and put it on the inside of the cardboard tubes. This should succeed in breaking up the sound waves.

coinwarrior

newbie

Activity: 13

Merit: 0

Quote from: xray on June 10, 2014, 02:05:48 PM

anyone get hit with taxes and what did hashra declare the value as ?

they declared mine with 326 USD and I didnt had to cough up any taxes. the big CE sticker helps for EU imports...

jjj0923

sr. member

Activity: 266

Merit: 250

Quote from: anarchoatheist on June 11, 2014, 04:12:48 AM

Quote from: jjj0923 on June 11, 2014, 04:03:39 AM

Quote from: anarchoatheist on June 11, 2014, 03:53:40 AM

Quote from: iikun on June 11, 2014, 03:43:33 AM

Quote from: anarchoatheist on June 11, 2014, 02:49:55 AM

Is there any way to turn the fan down on these? Can you please work on the decibel levels on the next version. It kinda sounds like a wind tunnel. I think maybe its the design of the heatsinc. The air passing over the fins creates some kind of resonance. I have been doing my mining at a friends house because he has free electricity. I brought this asic over and hooked it up and he said get that thing out of here. I need to find a way to dampen the noise, so I can get some free electricity.

I'm thinking to switch the fan to a much quieter but still high flow fan I have at home but no idea of the windflow of the stock fan. I wonder if you're right about the fins though, that would be a real pain as there's no way to get around that obviously.
Not sure about risking $2,000 on switching the fan tho...

I was thinking maybe putting one of these on each end. http://www.iaqsource.com/product.php?p=suncourt_dm106&product=111138&CA_6C15C=405309807. Or maybe rigging up my own with some acoustic egg crate foam.

that's a great idea! - the diameter matches the size of the fan also - I just measured my unit.

those dampeners are a little expensive. I'm thinking about making my own with some of this foam http://www.foambymail.com/EC1-5-F-CH/1-5-eggcrate-foam.html. This dampening technology should be implemented into mining machines, especially machines that are meant to be used by basic users. The big farmers get to go home and sleep away from these machines.

mine are in my basement where it's 65 to 75 degrees year round so I don't hear a thing...

anarchoatheist

member

Activity: 70

Merit: 10

Quote from: jjj0923 on June 11, 2014, 04:03:39 AM

Quote from: anarchoatheist on June 11, 2014, 03:53:40 AM

Quote from: iikun on June 11, 2014, 03:43:33 AM

Quote from: anarchoatheist on June 11, 2014, 02:49:55 AM

Is there any way to turn the fan down on these? Can you please work on the decibel levels on the next version. It kinda sounds like a wind tunnel. I think maybe its the design of the heatsinc. The air passing over the fins creates some kind of resonance. I have been doing my mining at a friends house because he has free electricity. I brought this asic over and hooked it up and he said get that thing out of here. I need to find a way to dampen the noise, so I can get some free electricity.

I'm thinking to switch the fan to a much quieter but still high flow fan I have at home but no idea of the windflow of the stock fan. I wonder if you're right about the fins though, that would be a real pain as there's no way to get around that obviously.
Not sure about risking $2,000 on switching the fan tho...

I was thinking maybe putting one of these on each end. http://www.iaqsource.com/product.php?p=suncourt_dm106&product=111138&CA_6C15C=405309807. Or maybe rigging up my own with some acoustic egg crate foam.

that's a great idea! - the diameter matches the size of the fan also - I just measured my unit.

those dampeners are a little expensive. I'm thinking about making my own with some of this foam http://www.foambymail.com/EC1-5-F-CH/1-5-eggcrate-foam.html. This dampening technology should be implemented into mining machines, especially machines that are meant to be used by basic users. The big farmers get to go home and sleep away from these machines.
p.s. I also measured my unit earlier today. I havent measured my miner yet though.

jjj0923

sr. member

Activity: 266

Merit: 250

Quote from: anarchoatheist on June 11, 2014, 03:53:40 AM

Quote from: iikun on June 11, 2014, 03:43:33 AM

Quote from: anarchoatheist on June 11, 2014, 02:49:55 AM

Is there any way to turn the fan down on these? Can you please work on the decibel levels on the next version. It kinda sounds like a wind tunnel. I think maybe its the design of the heatsinc. The air passing over the fins creates some kind of resonance. I have been doing my mining at a friends house because he has free electricity. I brought this asic over and hooked it up and he said get that thing out of here. I need to find a way to dampen the noise, so I can get some free electricity.

I'm thinking to switch the fan to a much quieter but still high flow fan I have at home but no idea of the windflow of the stock fan. I wonder if you're right about the fins though, that would be a real pain as there's no way to get around that obviously.
Not sure about risking $2,000 on switching the fan tho...

I was thinking maybe putting one of these on each end. http://www.iaqsource.com/product.php?p=suncourt_dm106&product=111138&CA_6C15C=405309807. Or maybe rigging up my own with some acoustic egg crate foam.

that's a great idea! - the diameter matches the size of the fan also - I just measured my unit.

jjj0923

sr. member

Activity: 266

Merit: 250

Quote from: anarchoatheist on June 11, 2014, 02:49:55 AM

Is there any way to turn the fan down on these? Can you please work on the decibel levels on the next version. It kinda sounds like a wind tunnel. I think maybe its the design of the heatsinc. The air passing over the fins creates some kind of resonance. I have been doing my mining at a friends house because he has free electricity. I brought this asic over and hooked it up and he said get that thing out of here. I need to find a way to dampen the noise, so I can get some free electricity.

you could build a 3 sides sound proof box - use thin balsa or 1/4 plywood and put some pillow foam on all three interior sides where the rear of the unit begins and have it extend about 8 to 12 inches behind the unit that will deaden the sound of the fan. as long as you don't interrupt the air intake or exhaust fan I think you'd probably be in good shape.

or open the unit up - gets some specs on the fan itself and see if you can find a less noisy fan.

anarchoatheist

member

Activity: 70

Merit: 10

Quote from: iikun on June 11, 2014, 03:43:33 AM

Quote from: anarchoatheist on June 11, 2014, 02:49:55 AM

Is there any way to turn the fan down on these? Can you please work on the decibel levels on the next version. It kinda sounds like a wind tunnel. I think maybe its the design of the heatsinc. The air passing over the fins creates some kind of resonance. I have been doing my mining at a friends house because he has free electricity. I brought this asic over and hooked it up and he said get that thing out of here. I need to find a way to dampen the noise, so I can get some free electricity.

I'm thinking to switch the fan to a much quieter but still high flow fan I have at home but no idea of the windflow of the stock fan. I wonder if you're right about the fins though, that would be a real pain as there's no way to get around that obviously.
Not sure about risking $2,000 on switching the fan tho...

I was thinking maybe putting one of these on each end. http://www.iaqsource.com/product.php?p=suncourt_dm106&product=111138&CA_6C15C=405309807. Or maybe rigging up my own with some acoustic egg crate foam.

iikun

legendary

Activity: 1062

Merit: 1003

Quote from: anarchoatheist on June 11, 2014, 02:49:55 AM

Is there any way to turn the fan down on these? Can you please work on the decibel levels on the next version. It kinda sounds like a wind tunnel. I think maybe its the design of the heatsinc. The air passing over the fins creates some kind of resonance. I have been doing my mining at a friends house because he has free electricity. I brought this asic over and hooked it up and he said get that thing out of here. I need to find a way to dampen the noise, so I can get some free electricity.

I'm thinking to switch the fan to a much quieter but still high flow fan I have at home but no idea of the windflow of the stock fan. I wonder if you're right about the fins though, that would be a real pain as there's no way to get around that obviously.
Not sure about risking $2,000 on switching the fan tho...

anarchoatheist

member

Activity: 70

Merit: 10

Is there any way to turn the fan down on these? Can you please work on the decibel levels on the next version. It kinda sounds like a wind tunnel. I think maybe its the design of the heatsinc. The air passing over the fins creates some kind of resonance. I have been doing my mining at a friends house because he has free electricity. I brought this asic over and hooked it up and he said get that thing out of here. I need to find a way to dampen the noise, so I can get some free electricity.

r0ach

legendary

Activity: 1260

Merit: 1000

1.2v is default on Gridseed blade, what's default on hashra?

samsonn25

hero member

Activity: 882

Merit: 1003

Thats worse than the BFL mess up with the power on their 1st gens

r0ach

legendary

Activity: 1260

Merit: 1000

Quote from: Brassguy on June 10, 2014, 07:11:08 PM

You would need to lower the voltage going to the chips to find the most efficient ratio of power input to hashrate output...

Yea, lowering voltage without changing any other variable on GPU mining rigs got large results. I can't remember the numbers, but I think it was something like 20-30% less power use. I would be very surprised if you couldn't get 300w or less power use out of these at 10.4mh on the launcher with voltage lowered. The question is, will Hashra provide an easy solution to do so in the future if people want to keep these plugged in a long time.

brian_23452

sr. member

Activity: 350

Merit: 250

Quote from: Brassguy on June 10, 2014, 07:11:08 PM

You would need to lower the voltage going to the chips to find the most efficient ratio of power input to hashrate output... It seems efficiency is really becoming the name of the game. Ahhh the old days when only the hashrate mattered.... moar moar!!!

I'm guessing their design was just messed up. Consider, One of their 1.3Mh/s units was originally slated to do 1Mh/s at 12 watts, at 280Mhz. The finished product does 1.3Mh/s at 328Mhz and consumes 45ish watts. Underclocking it to 280Mhz or even lower does, at least in my experiments, virtually nothing to reduce power consumption (maybe 1 watt). Of course undervolting it would reduce consumption but I have to assume they tried that and were not able to get it stable at anywhere near 1Mh/s, or else they would have done that to begin with.
Of course, this is the Zeus machines, but the Hashra devices are using the same chips just in different multiples, so outside of 1-2 percent differences they have the exact same issue.

Brassguy

full member

Activity: 139

Merit: 100

You would need to lower the voltage going to the chips to find the most efficient ratio of power input to hashrate output... It seems efficiency is really becoming the name of the game. Ahhh the old days when only the hashrate mattered.... moar moar!!!

brian_23452

sr. member

Activity: 350

Merit: 250

Quote from: r0ach on June 10, 2014, 04:39:38 PM

Quote from: davecoin on June 10, 2014, 04:00:48 PM

At clock speed 291, LL hashes about 12.8mh/s, 444 watts, still 6% HW errors.

Also, < 1% rejects on clevermining.

I don't have a power meter, could you try at 10.4mh to see what the power use is compared to gridseed blades? And are you using original firmware, or the upgraded one availabe? I haven't upgraded myself yet because jjj0923 said there was some kind of problem with it.

I took one of the Zeus 1.3Mh/s machines down to stock speed of 280mhz (the default OC is 328 I believe) and it was still pulling 50 watts from the wall on a platinum PSU. Consider that 8 gridseed blades pull 737 watts from the wall on the same PSU yet will do 45.6Mh/z at 838mhz and you see the problem. What would it take on one of these things, around 1600ish from the wall to get similar performance? It isn't a clock issue, or a firmware issue, or a configuration issue the chips in these things simply pull way too much power. There is no way around that.

jjj0923

sr. member

Activity: 266

Merit: 250

Quote from: wellfried on June 10, 2014, 04:13:52 PM

Quote from: jjj0923 on June 10, 2014, 04:03:25 PM

if it's making heat then it's mining....

what's in the syslog file?

can you tail it and post the results or the log file on the screen?

Here is a little more on the error (below). Physically, it seems that once I get this error, the unit shuts down. so the fans shut off, the PSU powers off, and I have to cycle everything to get it back up and running.

Jun 10 21:11:00 cgminer: Started cgminer 3.1.1

Jun 10 21:11:01 cgminer: Icarus Detect: Test failed at /dev/ttyUSB0: get 00000000, should: 00038d26

Jun 10 21:11:01 cgminer: All devices disabled, cannot mine!

Jun 10 21:11:01 kernel: [ 80.162232] usb 1-1.2: USB disconnect, device number 4

Jun 10 21:11:01 kernel: [ 80.162905] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0

Jun 10 21:11:01 kernel: [ 80.162985] cp210x 1-1.2:1.0: device disconnected

I assume you've tried both usb ports on the pi?

once it's running and you get the error message - disconnect the usb cable and reconnect it - see if the pi detects it?

r0ach

legendary

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Quote from: davecoin on June 10, 2014, 05:07:39 PM

I have to leave to work soon, but my napkin math guess is somewhere around 350 watts. I'll try to mess with it tomorrow and post results again.

Can't really use napkin math for this because gridseed blade power use isn't even close to linear for overclocking. I assume the Hashra chips are the same way and they are shipped to us already in that outside of efficiency power band state.

Topic: HASHRA - LUNAR SERIES - ASIC SCRYPT MINERS - page 25. (Read 61721 times)