Great. My Terraminer IV is falling apart. 1 core already died and am not sure how to fix it. I want to get some thermal paste and see if that fixes anything but I dare not touch it. The remaining 3 temps are getting higher slowly each day. I hope someone starts a class lawsuit action against them.
The core you have that's down was probably shut down do to it overheating. I have had two cores go down do to overheating. As for the other three slowly getting hotter, well, they are going to continue getting hotter. Replacing the thermal compound is the only way to fix this issue. It will most likely bring back the dead core if it was shut down do to overheating. The question is which one to use? The best thing to do is read through this thread to see what others have done and make your decision then which way to go.
I have a few "1 dead core" miners, and have found the problem and solution. I have tried redoing the paste, no help. I am pretty sure it's the pump problem, probably pump dead. My solution is to replace the water block with a new one: (something like this:
http://www.coolermaster.com/cooling/seidon/seidon-120v/)
They way how you can see which pump is dead is, to remove the 3-pin of each pump one by one, and run the machines with only 3 pumps hooked up. You will see which one is good and which one is not actually responding.
However, although the dead core was brought back to life once I have replaced the water block, they can't run as fast as the original ones. I have tested with both Cooler Master Sedion 120 and Silverstone TD03, and they only provide 1000 ~ 1200 RPM for the pump speed.
As a result, I can only run the machine to Power Step 6 with the replacement pump. As soon as I step up to Step 7 or higher, the core with the replacement pump register errors and do not function properly. --- I am still using only normal thermal paste (i.e. Artic Silver 5) though. I will try liquid pro on my Silverstone replacement pump sometime tomorrow, and see if I can put it beyond Power Step 6.