If you had a board with shared power connectors im betting thats the damaged one. This is, for the billionth time, why you do not buy miners from random people.

CPU mining on a 5 year old processor will just lose you money, you should consider this a blessing in disguise.

Mine just left China today as well.

The answer is to stop wasting time with Windows and just setup a linux mining build. It is more stable and reliable without all the bullshit problems windows brings to the table.

I honestly dont understand why people support mining under windows.

50-60c is on the very low end of miner temps. Also, you do not want to dump AC directly into the unit. The s9 will run over 110c chip temps, if your temps are that low you dont need AC, just some ventilation to prevent hot air accumulation.

Use a VPN, you do not want to have them accessible in any way on the public internet.

Id look into something like this:

http://www.pivpn.io/

$35 RPi and some time and you are safe and secure.

I feel like the cabling for that would be more than just buying another RPi and running them separately

Sounds like only 1 of your 3 boards is hashing.

The controller is powered internally. When you turn the first board on it will power up, when you turn the second board on it will reboot itself.

Check the kernel log?

Easiest way to rectify the situation is to go throw the miner in the trash. Its completely useless at this point.

You say that yet you post you are running an ATX power supply. ATX power supplies are not meant to handle near their full rated output 24/7/365. They are a terrible choice for bitcoin miners.

The L3+ is manufactured by Bitmain and noone else. No idea where you got that other random name.

The Delta 2400w units the parallelminer sells are brand new high quality units. I have tested them personally over 92% efficiency. Right now those would be my suggestions for S9 power supplies.

There have been delays on shipping the November batch and sometimes bitmain is just bad at communicating.

Chasing profitability by coin hopping will just end up losing you money. Your best bet is to mine one of the big, stable coins (ZEC or ETH most likely as they are consistantly highly profitable). From there if you want to speculate on other coins you can convert to that coin and hodl it.

You all seem very confused. These arent video cards, they arent made for mining at all. These are deep learning accelerator cards made for a specific purpose that has nothing to do with gaming or mining.

Also to the above comment, what you say has no basis in reality.

1. Large companies routinely have more than one market they service. Nobody said Mitsubishi was getting out of the electronics game because they put out a new automobile.

2. How is making something that has NOTHING TO DO with mining pivoting on their business model? How do you even presume to understand how their business works, going around telling people things that are blatantly false?

3. Again nothing to do with ASICs so no, nothing will be cheaper.

--solver 0 1 2 3 4 5 6 7  <---this is wrong as well, all of your cards should be using solver 0, you shouldnt even need this line in your config

Dash can go up to $1000 and you will still make less than $10 a day with a dash miner vs everything else.

This whole D3 fiasco should be a learning experience for people. When a coin is transitioning from GPU to ASIC, you cant calaculate the ASIC profit based on the GPU difficulty.....

If there was a way to mine and make a profit without using a lot of electricity every single person on here would be doing it. If you want to mine, move to somewhere with reasonable power rates.