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As the title says I'm selling Alcheminer 205 MH/s Scrypt miner.
Let me just say right away that this isn't a user-friendly home miner - it's loud, hot, power-hungry, doesn't have a GUI, and has some other issues. See the details below if you're still interested.
The bad:
- 2400W at the wall. That's right, 2.4 kilowatts, so you can't run this on a regular 120V circuit. Idle (so basically fans alone) consumes 400W.
- Those 400W fans sound like jet engines. Not for a bedroom or even a basement.
- Consequently you'll need a beefy power supply, such as IBM 2880W, and a 240V circuit. 8 PCI-E cables are needed - good quality ones since it draws ~300W per cable.
- The miner has 8 boards and is rated for 256 MH/s. However one of the boards is defective and the miner has been downclocked for stability, so it's operating at ~205 MH/s.
- Doesn't have a user-friendly web GUI. The stock software was buggy as hell so it has been replaced with bfgminer. You must be comfortable with Linux command line (via SSH) to use it.
- Even with the remaining 7 "good" boards bfgminer sometimes hangs on startup. An extra reboot or two may be needed to get it to work e.g. after a power outage or internet connectivity loss.
The not so bad:
- With LTC rising it can still be profitable (depending on your electric costs of course).
- Despite the startup issues, bfgminer generally works ok if the internet connection and the pools are stable.
- I have already worked out most of the issues. Stock version was way worse, if you can believe that. Even the startup issues can be worked around with some scripting, I just never got around to doing that.
- Price is right and it can be shipped the next day after you pay, compared to the 2+ months you'd wait for an Antminer.
This sale includes ONLY the miner itself with its built-in controller, and does NOT include a power supply, or any cables or other accessories.
PRICE 12 LTCYou're welcome to suggest a reputable mutually acceptable escrow but you pay the fees.
Free shipping via FedEx Ground/Home or UPS Ground (my choice) with adult signature to any street address in the US mainland, aka 48 states. No PO Boxes. Freight forwarders - at your own risk, I'm only responsible for the delivery to the forwarder. No local pickup.
Some configuration details to give you an idea of how it works:
- The miner will come set up to use DHCP, as most miners do. Once you turn it on and give it a few minutes to boot you'll need to find its IP address, e.g. from your router.
- Use an SSH client (e.g. putty on Windows) to connect. Username/password is admin/admin.
- Use screen to connect to the running instance of bfgminer:
- /etc/rc.local is used to start the mining software:
sudo /usr/bin/screen -d -m -S bfg /home/admin/startbfg.sh
- Which in turn calls /home/admin/startbfg.sh - edit this file to set your own pools:
#! /bin/sh
cd /home/admin/bfgminer541
sleep 5
/home/admin/stop.sh
sleep 5
/home/admin/stop.sh
sleep 5
./bfgminer --scrypt --no-gbt --no-getwork \
-o stratum+tcp://main.pool.tld:3333 -u username1 -p x \
-o stratum+tcp://backup.pool.tld:3333 -u username2 -p x \
-S ALC:/dev/ttyUSB3 -S ALC:/dev/ttyUSB2 -S ALC:/dev/ttyUSB1 \
-S ALC:/dev/ttyO1 -S ALC:/dev/ttyO2 -S ALC:/dev/ttyO3 -S ALC:/dev/ttyO4 \
--set ALC@/dev/ttyUSB3:clock=336 --set ALC@/dev/ttyUSB2:clock=336 --set ALC@/dev/ttyUSB1:clock=336 \
--set ALC@/dev/ttyO1:clock=336 --set ALC@/dev/ttyO2:clock=336 \
--set ALC@/dev/ttyO3:clock=336 --set ALC@/dev/ttyO4:clock=336
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