Quote from: carman336 on March 16, 2015, 07:41:09 PM

As for your totally dead board, power it up on a car battery using my instructions a couple pages back. One big spark, one pop and a few seconds later and you will see the board light up save for one dead core. If you want you can then replace the bad mosfet otherwise just run it on 7 cores. You won't get the orange light anymore after you short it. Just make sure you get the polarity correct.

I may have to try this in an attempt to resurrect the dead board in my TerraMiner as well. As you recall, I have one machine that is only running on one board as well. It kicks on for like half a second and then immediately turns off. So, why do you need to run it on a car battery to "fix it" (or, rather, from the sounds of it, to blow up the one bad mosfet or chip that it preventing the board from working and then the rest of the board will work) like you explain? If you try running it off of the power supply, is the board just telling the power supply to stop supplying power because of a short, but the car battery doesn't care and will keep supplying power until it blows up? That doesn't seem to be my experience though as when my machine is running, I checked the voltage at the big power connectors to the board and I was getting 12 VDC to the dead board, it just was still not turning on and working. I would think then that this would be the same result if I apply power to the dead board from a car battery - it will try to turn on for half a second and then turn right off to try to "save" the board. (Which, in actuality, is still ruining the board since I can't use it either way! lol...)

Thanks for the tips and pointers though! I know I definitely appreciate it as a CoinTerra noob, lol...

(Which, BTW - due to being very busy with work lately and coming home at 8:30-9pm at night, I still haven't had a chance to open up one of my TerraMiners yet to try to redo the thermal paste with the Liquid Pro that I bought. Hopefully one day this week I will get a chance to do it. If not, definitely by Friday or Saturday then. I'll keep you all posted with how it turns out whenever I get a round to it. In the meantime, I just bought a used AntMiner S5 off eBay for (probably a bit too much money, but...) $600 with a Corsair 850 Watt power supply. I just hooked that puppy up and got that mining away at 1,156 GH/s or so for a couple of days now.)

I also found a sale on metal shelving on eBay last week, so I bought a 6-tier, 500 Lbs per shelf rated tubular steel shelf with casters for $69.99 with free shipping to put all my miners on. The cheap $14 4-tier plastic shelving I bought at Home Depot to temporarily put my miners on wasn't working out and the weight of these CoinTerra monsters was bowing the shelves pretty badly, even though I put them as far out on the edges of the shelves as possible and staggered them to try to prevent that from happening. Well, at least I have a more safer shelving solution to put my miners on now that is a lot more sturdy and stable. I should have just bought one of those in the first place. Oh well, live and learn, I guess. Now I have a nice, purdy, shiny rack in the corner of my basement for all my miners, lol! Check out some pictures of my setup:

Here is the old plastic shelving I was using (BAD!):
http://www.Pittinaro.com/images/basement/BitCoin_Miners/Old_BitCoin_Miner_Shelving_01.jpg

Look how bad the TerraMiner is bowing the shelf!
http://www.Pittinaro.com/images/basement/BitCoin_Miners/Old_BitCoin_Miner_Shelving_02.jpg

Even my AntMiner S2 did a number on the shelf it was sitting on:
http://www.Pittinaro.com/images/basement/BitCoin_Miners/Old_BitCoin_Miner_Shelving_03.jpg

Here is half of my new shelving that I assembled with the wheels on it (All 6-Tiers was just slightly too tall to fit in my basement, unfortunately. Thankfully, this shelving was semi-modular, so I could construct two 3-Tier shelving units out of it, which came in handy.):
http://www.Pittinaro.com/images/basement/BitCoin_Miners/New_BitCoin_Miner_Shelving_03.jpg

Now, the guy who sold me the AntMiner S5 told me that it is important to have the bottom closed off to improve airflow so it will cool it properly. Since these shelves are open wire mesh, that wouldn't be the best to put my S5 unit on. So, rather than buying some wooden boards to put it on, I cut up the box that my shelving came in to make a decent base to put my miner on:
http://www.Pittinaro.com/images/basement/BitCoin_Miners/New_BitCoin_Miner_Shelving_05.jpg

The box was obviously slightly larger than the shelving unit, so I had to round out the corners so the cardboard would fit between the posts that the shelves mount on:
http://www.Pittinaro.com/images/basement/BitCoin_Miners/New_BitCoin_Miner_Shelving_07.jpg

Here is my new shelving with my two AntMiners mounted on it:
http://www.Pittinaro.com/images/basement/BitCoin_Miners/New_BitCoin_Miner_Shelving_09.jpg

And finally I added the TerraMiners to the bottom shelves and powered everything on:
http://www.Pittinaro.com/images/basement/BitCoin_Miners/New_BitCoin_Miner_Shelving_10.jpg

I just still can't get over how quickly these miners are improving though. Look at the AntMiner S2 next to the latest AntMiner S5. The S5 is WAY less than half the size and weight of the S2 miner and it has about 100-150 GH/s more mining power to boot! It also uses almost HALF of the power to do so (not quite, but pretty close...).
http://www.Pittinaro.com/images/basement/BitCoin_Miners/AntMiner-S2-and-S5-Side-by-Side_02.jpg

(Oh, and sorry to hijack a thread about fixing CoinTerra miners with pics of my mining setup, but I figured it is somewhat topically related at least...)