Official FutureBit Moonlander 2 Driver and Support Thread - page 66.

aarons6

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Quote from: Bitfort on January 17, 2018, 06:23:29 PM

Quote from: aarons6 on January 17, 2018, 06:10:08 PM

i have one fan that died.. it spins very slowly and makes a horrible rattling noise.. this is the fan that started making noise before i oiled it.

ive since oiled all my fans.. a few of them were completely dry..

i suggest everyone to peel the sticker off and put a drop of oil on the bearing.. let it soak in for a few minutes and run the fan face down for a few.

Be careful.. oil can mix with dust making some sort of paste and block the bearigns completely. Some bearings are designed to run dry (don't know if these are the case).

some of them had oil on them..

i really dont think these fans are going to last very long.. i really wish he went with the longer heatsink and put the fan on top. that way when it fails you can just remove it.

Bitfort

sr. member

Activity: 952

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Quote from: aarons6 on January 17, 2018, 06:10:08 PM

i have one fan that died.. it spins very slowly and makes a horrible rattling noise.. this is the fan that started making noise before i oiled it.

ive since oiled all my fans.. a few of them were completely dry..

i suggest everyone to peel the sticker off and put a drop of oil on the bearing.. let it soak in for a few minutes and run the fan face down for a few.

Be careful.. oil can mix with dust making some sort of paste and block the bearigns completely. Some bearings are designed to run dry (don't know if these are the case).

aarons6

legendary

Activity: 1736

Merit: 1006

i have one fan that died.. it spins very slowly and makes a horrible rattling noise.. this is the fan that started making noise before i oiled it.

ive since oiled all my fans.. a few of them were completely dry..

i suggest everyone to peel the sticker off and put a drop of oil on the bearing.. let it soak in for a few minutes and run the fan face down for a few.

dvsrk

newbie

Activity: 16

Merit: 0

Quote from: Bitfort on January 15, 2018, 04:34:28 PM

Quote from: dvsrk on January 15, 2018, 04:22:37 PM

Hi,

I'm currently running the moonlander 2 usb devices connected to PC (Windows 10 OS). I'm planning to switch to raspberry pi 3 to cut down the power consumption, & need few suggestions,

1) What is the best/suggested OS for raspberry pi 3 to better run moonlander 2 devices or to be stable.
2) I'm panning to connect a USB2.0 hub(external powered with each usb port delivering consistent 2A current output) with 20 usb ports (probably connected with 10 moonlander 2 usb devices)
3) Do any of the Operating Systems of raspberry pi 3 has limitations on USB hubs connected to them?

Do anyone of you tried this and anyone of you think switching from PC to raspberry pi 3 is a bad idea?

Thanks

I switched to Pi recently. Running 3 sticks on NOOBS without issues (at the moment 6 days without interruption) ... but i'm real NOOB when it comes to rasp and linux so can't answer you more questions. Very happy I did that. Now entire setup is behind window (I have double windows in my house) so heat nor noise is issue anymore (original fans were really loud sometimes).

I say go for it.

thank you Bitfort for sharing your experience

I'm planning to go with Radpbian or UbuntuMate as operating system on pi3. Any suggested/recommended OS that can better run moonlander 2 with USB hub attached?

thanks

jstefanop

legendary

Activity: 2174

Merit: 1401

Quote from: sunk818 on January 17, 2018, 11:21:55 AM

Quote from: lennyNO on January 12, 2018, 06:27:25 AM

Ok. One of the things I wanted to find out with the debug mode is WHY the hashrate drops to around 2.5M/s, is it because some cores stop being activated (after a restart), is it because some data doesn't get transmitted, (USB hub clogged up has been suggested). I know it drove me mad at one point, but since now everything is stable (running 11 sticks on 1 hub at around 55Mh/s total) I am happy.

Running 10 ML2. Can't seem to get past 3.5Mh/s on average. I have 2 that drop to 2.5 Mh/s which brings the average down at 744 Mhz. Even if I raise the freq, the hash eventually settles at 35 Mh/s. I'm thinking it is wattage at this point. Using Sipolar A-400. Haven't played with the memory voltage, but maybe it is time to play with that because I think I've hit the wall in terms of 120W (12 W per device) on the Sipolar A400.

I have seen this as well, I have narrowed down the issue to one of two things.

1) like 90% of the issues I see this happen when your running multiple sticks on a hub and your near the max Amps the supply can generate. This causes some cores to shutdown and you see the drop in hashrate
2) some ASICs have a larger than normal power draw on memory, the issue get worse on frequencies higher than 600mhz. The memory controller then overshoots the voltage past .9v which causes some memory banks to stop working. The fix is to turn down memory voltage as low as you can get it to start hashing. Seems like .75-.8v works (almost a quarter of a turn counterclockwise on the top pot).

Next driver update will have an additional watchdog that looks for low hash rates and restarts them, but hashrate will still keep dropping if you have an issue with supply etc.

sunk818

full member

Activity: 1176

Merit: 111

Quote from: lennyNO on January 12, 2018, 06:27:25 AM

Ok. One of the things I wanted to find out with the debug mode is WHY the hashrate drops to around 2.5M/s, is it because some cores stop being activated (after a restart), is it because some data doesn't get transmitted, (USB hub clogged up has been suggested). I know it drove me mad at one point, but since now everything is stable (running 11 sticks on 1 hub at around 55Mh/s total) I am happy.

Running 10 ML2. Can't seem to get past 3.5Mh/s on average. I have 2 that drop to 2.5 Mh/s which brings the average down at 744 Mhz. Even if I raise the freq, the hash eventually settles at 35 Mh/s. I'm thinking it is wattage at this point. Using Sipolar A-400. Haven't played with the memory voltage, but maybe it is time to play with that because I think I've hit the wall in terms of 120W (12 W per device) on the Sipolar A400.

aballen

newbie

Activity: 73

Merit: 0

Bought this.
https://www.amazon.com/gp/product/B00IJ2J2K0/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I'm wondering, if it could be a replacement for all the little fans, or if I will need to run both.

When I get my next set of moonlanders, I may even try running with the big external fans, removing the little fans. I do want to run them faster than stock though.

Eyedol-X

hero member

Activity: 952

Merit: 508

Quote from: iamwillard on January 16, 2018, 10:15:06 PM

Has anyone found a suitable replacement fan for this?

I've tried a couple fans from ebay and they have been either defective or obnoxiously loud.

So far, outside of external fans, everything I've tried has been obnoxious loud. I'm waiting for some different direct replacement ball bearing fans to show up and will test them once I get them.

iamwillard

newbie

Activity: 7

Merit: 0

Has anyone found a suitable replacement fan for this?

I've tried a couple fans from ebay and they have been either defective or obnoxiously loud.

Eyedol-X

hero member

Activity: 952

Merit: 508

one of my MLD2's constantly slows down to like 2.4MH after a while set to 700mhz.

It's not overheating from what i can tell but it consistently has this behavior.

Anyone else experience anything similar?

sunk818

full member

Activity: 1176

Merit: 111

Quote from: charlie137 on January 09, 2018, 04:01:41 PM

for last two days one stick started to stop hashing every few minutes. what to do? this is clearly not normal - sticks worked properly before

That message is normal. I get that once a while too.

You might try adding a home fan to your set up temporarily. I used get the error a lot, but added a USB desk fan and the errors have gone down considerably. This makes me believe the error is due to inadequate cooling. If your ambient temp has gone up, this can explain why you get this error recently.

aarons6

legendary

Activity: 1736

Merit: 1006

Quote from: aballen on January 16, 2018, 07:26:57 AM

Don't solo mine, use a pool. You will accumulate LTC faster than you think, and if you want you can sell it for tother coins.

um, seriously.. with these on LTC pool you will make less 1$ per 1 mh/s PER MONTH..

if you get lucky and hit a verge block, thats like 400$.. a digibyte block would be like 60$.

i would say that right now if you had a few of these you have a very good chance of hitting a block..

there are much better coins to mine with these besides LTC

neerajmittal

newbie

Activity: 36

Merit: 0

No, its specifically just for Moonlander 2. Every other driver has been stripped to avoid issues during launch, and will make support and my debugging life easier. Once people have received and started using their sticks ill merge the driver into the luke-jr's main branch and add MLD 1 support. For now you'll just have to run two instances of bf gminer if you want to run them on the same computer. Any chance someone can write up a step-by-step guide for getting these working on a Raspberry Pi 3B? I'm a Linux novice and most of what I see assumes a certain level of know how. I was hoping to set it up wirelessly on Minera, but at this point I'm so confused I'll take what I can get... Thanks in advance!

aballen

newbie

Activity: 73

Merit: 0

Don't solo mine, use a pool. You will accumulate LTC faster than you think, and if you want you can sell it for tother coins.

aarons6

legendary

Activity: 1736

Merit: 1006

im trying to figure out what to mine with these.. i started mining solo litecoin at ltc.tbdice.org but the chance to get a block is so slim..
ive now put my miners on verge scrypt.. mining.securepayment.cc but there is still a pretty low chance of getting a block, like 1 in 1000 with my hash..

i want to mine digibyte scrypt solo (1 in 50 chance at my hash).. but i dont know how to set it up and i cant find a pool.
has anyone successfully mined solo on the wallet of dbg-scrypt? if so can you put a guide up?

i tried to run bfgminer in proxy mode but it couldnt connect.. im sure tho its not as complicated as it seems.

Bitfort

sr. member

Activity: 952

Merit: 339

invest trade and gamble wisely

Quote from: dvsrk on January 15, 2018, 04:22:37 PM

Hi,

I'm currently running the moonlander 2 usb devices connected to PC (Windows 10 OS). I'm planning to switch to raspberry pi 3 to cut down the power consumption, & need few suggestions,

1) What is the best/suggested OS for raspberry pi 3 to better run moonlander 2 devices or to be stable.
2) I'm panning to connect a USB2.0 hub(external powered with each usb port delivering consistent 2A current output) with 20 usb ports (probably connected with 10 moonlander 2 usb devices)
3) Do any of the Operating Systems of raspberry pi 3 has limitations on USB hubs connected to them?

Do anyone of you tried this and anyone of you think switching from PC to raspberry pi 3 is a bad idea?

Thanks

I switched to Pi recently. Running 3 sticks on NOOBS without issues (at the moment 6 days without interruption) ... but i'm real NOOB when it comes to rasp and linux so can't answer you more questions. Very happy I did that. Now entire setup is behind window (I have double windows in my house) so heat nor noise is issue anymore (original fans were really loud sometimes).

I say go for it.

dvsrk

newbie

Activity: 16

Merit: 0

Hi,

I'm currently running the moonlander 2 usb devices connected to PC (Windows 10 OS). I'm planning to switch to raspberry pi 3 to cut down the power consumption, & need few suggestions,

1) What is the best/suggested OS for raspberry pi 3 to better run moonlander 2 devices or to be stable.
2) I'm panning to connect a USB2.0 hub(external powered with each usb port delivering consistent 2A current output) with 20 usb ports (probably connected with 10 moonlander 2 usb devices)
3) Do any of the Operating Systems of raspberry pi 3 has limitations on USB hubs connected to them?

Do anyone of you tried this and anyone of you think switching from PC to raspberry pi 3 is a bad idea?

Thanks

jstefanop

legendary

Activity: 2174

Merit: 1401

Quote from: aarons6 on January 13, 2018, 07:53:38 PM

to anyone curious, this is stock voltage at speed 796

this is why you need a good hub and why you cant plug these directly into the usb ports on your pc

FYI you can easily pull ~1.6-1.7 A @796 if you turn down your core voltage a bit and memory voltage.

jstefanop

legendary

Activity: 2174

Merit: 1401

Quote from: dalabrac on January 14, 2018, 02:22:20 PM

I'm having some difficulty tuning mine. I have it clocked @900, tuned so HW<1%, but the hash rate won't stay stable for more than a minute or so.

Try turning up the memory voltage as well if your going that high. Again, anything past 900mhz your burning through 3A of current, you would need a super heavy duty hub with a very good power supply to be stable at that high of a frequency.

dalabrac

newbie

Activity: 1

Merit: 0

I'm having some difficulty tuning mine. I have it clocked @900, tuned so HW<1%, but the hash rate won't stay stable for more than a minute or so.

Topic: Official FutureBit Moonlander 2 Driver and Support Thread - page 66. (Read 71717 times)