Do you have any pictures of how you are connecting the miners into the cold air return? I am planning to do this (especially with the tax hike on natural gas in Alberta next year).

I was planning on taking some air from the cold air return through the miners and back into it. My biggest consern is fluff and dust as it would be pre-filter.  I will try any set up a filter before the miners.

I haven't soundproofed any garages from miner, but I have had a little dealings with soundproofing on basement suites.

If it was me I would build a stud wall on the inside of the garage (between the miners and the master bed wall. Use the Roxul Safe'n'Sound in that wall then use resilient channel to hand the drywall on. Maybe even use acoustic sealant between the boards and the resignation channel.  The back can be left open.

The main objective is to reduce the vibration by uncoupling the surfaces in the garage and the bedroom. Don't let the new stud wall touch the old garage wall. Fixing it to the floor should be fine but attaching it to the ceiling or outside wall should be through something that will not transfer the sound (maybe more res channel).

When installing the res channel do not 'short' the board to the frame wall. Screws holding the drywall on should only screw into the res channel and not the stud wall. This will transfer the sound. Failure rate for installing res channel can be high if your not careful, but its easy if yous studs are makes properly. There are videos on youtube explaining this.


http://www.soundproofingcompany.com/wp-content/uploads/2015/12/sw-resilient-channel-single-single-solid-banner.jpg

Basically like this but with an open back. I see some pictures with the green glue between the boards. Is this what you are talking about with the glue. I have never done this but I assume it would help more. You could do the one skin then add the glued skin after if the first skin isn't enough sound proofing.

Ok, I will keep an eye on them.

I intend to add a thermostat to control the intake fan when it gets colder. Its hovering around -8 right now but will be getting a lot colder soon, and we get drastic temperature fluctuation.

I'm sorry, I don't follow. Which part needs explaining?

This must be a little old as Bitmain only accepts Bitcoin Cash right now.

Bitmain, right this second

https://shop.bitmain.com/productDetail.htm?pid=00020171110160546640l4g92i60062E

So you don't think its the temps that are the issue. Could it be back pressure from the manifold on the fans?

Everything has been running well as I split the miners into to set ups. With the main set up venting into manifold it was running fine. I added 1 last miner into the set up and the hash rate started dropping?! I removed this miner when things started to take a dive but they still dropped. I reset the power for the set up and it was fine again.

Last weekend I added a larger fan pulling are into the room. The room is very cool now. I tried adding the extra miner again and now things are running fine. I'm assuming that with the cooler temp (from 10 to 20C in the room) the fans are running at a lower speed and not causing any back pressure.

Now with another problem you point out. The room is now very cool, and my temps are below what you recommend. However everything us running nicely. Should I be overly worries about being to cold?

https://ibb.co/jSwJdR

The other set up is venting directly out of the basement kitchen window. This box has been down as low as zero degree C. The miners seem to be running fine though.

https://ibb.co/jB89k6

Is this too cold?

I originally tried heating but that fell flat. It was never warm enough, then I figured it was the cold air intake from outside puling too much cold in. I still plan you use some of the heat once I am happy how things are running.

I would love to see some pictures when you are done you set up!



I definatly need to get a better set up for summer, I may build a room in the garage, but we have a long winter ahead of us...

Ok, I get it now, great link!

How long does the PG column keep the notification for? When I first set them up I wasn't expecting them to put out so much heat. Things got pretty toasty down there. Is there a way to reset so I can see new notifications. I tried resetting cgminer.

I do have smoke/co2's hardwired throughout the house. I'm really not looking to end up in the news, I do appreciate the consern.


Yeah, it was warm. It was the lack of air coming in. Its 20 degrees C in the middle of the rack right now. I have a large fan taking air out and another bringing it in (from a very drafty entrance lobby). Ideally I would run everything in the one room, but I will need to put a hole though the foundation to bring the air in. I am still pondering this over.

I have another 4 running in the kitchen of the basement, and its getting fairly warm down there. I've just started monitoring the temp.


How do people usually keep the temp down in a residential setting for multiple miners. I'm in Canada and its -10 out, god know what I will do in the summer!!

Does anyone have any links to set ups that they have built. I have searched on here and not found much.

Quick update.

I have 6 miners running now for over 24 hours with a pretty even hash rate. I am also running a couple of other spread around the house to see how they run. Everything is running fine.

So I'm guessing the miners were overheating? Does this sound about right.

What kind of temps should I be aiming for, for the room and the miners themselves?

I think the miner temps seem pretty constant, does this help.

https://ibb.co/fU3gnb
https://ibb.co/dS7P7b

These are taken 19 hours after a reboot. The hash rate has dropped from in the 40s to in the 20s. I decided to restart everything as I have waited before and it drops even lower.

This is 30 mins after restarting

https://ibb.co/c3zqDG
https://ibb.co/hwQK7b

The temp in the middle of the rack is 30C. I don't have the temp from anywhere else in the room.


The PSU's are as follows

9 miners with 2 each x https://ibb.co/nJ8YYG  and  3 x https://ibb.co/k3QDYG (powered with 240v)

Each miner is on a dedicated 15 amp circuit. The first set of PSU's are in the same circuit for the same miner. The 240v PSU's have there own dedicated 240v circuit.

I have not touched anything else with the miners or PSU's.

Bit of an update my end.

I don't think I have enough air coming in, which is causing other problems. I have the miners venting basically into a wooden box (18"x36"x78") with a 10" fan https://www.princessauto.com/en/detail/10-in-2-speed-ventilating-fan/A-p0772384e ducted out of the window. The fan is running at 690 CFM. With the 12 miners fans running at about 18CFM means they exhaust fan is not strong enough to remove all the air the miners are pushing. Would this strain the miners.

The air intake is only a small inline fan needed to meet code as the basement is a separate suite (90CFM). I though this would be ok for cooling as its now below 0C here so the air coming in is cold. I'm thinking this is nowhere enough inflow.

Also, silly me. I removed the cold air intake from the furnace as I wanted to move some of the hot air to the main floor. To do this I needed to cut a hole in the furnace room. Now I have a bulk head linking the mining room to the furnace room and I think the negative preassue is pulling the exhaust gasses in from the hot water tank. I was starting to not feel so great so think it was the CO2 coming bad into the house. I have shut down the mining last night. I will be patching the holes today and try running 6 miners to see if that is stable.

Is any of this enough to effect the effective hash rate, as the hash rate in the pic provided still seems pretty stable. Do I have dodgy internet?

What do you think? Thanks in advance!

Hi,

I'm still just learning the basics of mining and I am running into a problem with my effective hash rate dropping off.

I have 12 x Avalon 6 miners. When I start the set up running I get around 35 to 40 Th/s, which run around there for approximately 8 hours then begins to die off. I have had it drop all the way to under 10 Th/s. This seems to keep happening.

If I turn the breaker off feeding the miners and turn it on after 30 seconds it restarts back to the rate I expected to be getting.

What is causing the die off?

The hash rate in Cgminer Status seems pretty constant. I have been reading that its just luck how effective yous hash rate is, but it never goes back up again. Is my internet the issue?

Set up is 29-30 degree C on the center shelf. The air is vented outside via a manifold, with a couple of take offs to heat the main floor of the house. I have fresh air being brought in.  The set up is powered by its own 100 amp panel.

I think I did find adding more venting help it stay higher for longer, or maybe this is just a coincidence.

Any though would be very much appreciated.

I got these links from Canaan support, but wasn't sure which one to use. I ended up trying them all a few times and got one working, thank for the links.


Yeah, more likely a fixed static IP not in range than anything to do with firmware.

I think it was the firmware as I was trying the 192.168.0.100. It did finally show up when I got the right firmware. Some reason now though it has a different IP address, but things are up and running.

Thank you both for your help!

Hi All,

First post.

So, I am having similar issues with an Avalon 6 I just purchased. I followed Dogie's guide for an Antminer and it was very simple, however the Avalon 6 isn't playing so easily.

I am following the instruction on Canaan's site https://canaan.io/downloads/people/lili/doc/avalon6/AvalonMiner-6-Raspberry-Pi-Configuration-Guide-with-english.pdf

I can't see the Avalon when logged into my router. I'm assuming I need to re-flash the SD card with the firmware, but where do you get the correct download from. I have downloaded everything that looks close from the Canaan support site.

The manual says to use the following links, but they are both dead
Raspberry Pi 2B Firmware:
https://canaan.io/downloads/software/avalon6/openwrt/latest/brcm270
8/bcm2708/openwrt-brcm2708-bcm2708-sdcard-vfat-ext4.img
 Raspberry Pi 2B Firmware:
https://canaan.io/downloads/software/avalon6/openwrt/latest/brcm270
8/bcm2709/openwrt-brcm2708-bcm2709-sdcard-vfat-ext4.img

Does anyone have a firmware file or a link to one that might work, or is there something else I am missing during set up.

Any help would be very much appreciated.