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I was getting great performance when my 3 BJ's arrived. At least on two of them, there was one that seemed a bit flakey and seems to be getting worse. All 3 seem to be getting worse. One of them keeps shutting down and restarting grabbing a new ID each time. I posted a small capture from my monitor so that maybe if others have had this and fixed it they can help. This one that is flaky was delivered in poor condition, all but one screw was sliding around the inside of the box and 4 risers that prop the board up were also floating around. I though the board was damaged and it may be. Worst assembly I have ever seen and I used to build PC's. That point is mute if they all work but they don't.
Here is what I need help answering.
1. How do I get back to my 400+ GH performance. All three of these were pushing +-420GH.
2. Worse case scenario is how do I raise the clock speed to get up to the 400GH range? I was promised by Erin at Hashfast that it would not void the warranty but the delivery paperwork stated otherwise. I will have to deal with that warranty issue separately, I know.
3. I seem to be getting huge error rates, I think it is on the flaky board but not 100% sure that is the only place. 70% to 80% errors are common. Elgius reports I am only getting 900 to 950 GH/s AVG with 3 boards and I should be getting closer to 1200. Not good for profits. Any help would be appreciated. I hate to try and send a board back under warranty since I might be stuck for months. I still am waiting on my 3 upgrades, I would hat to be down to 2 processors if I can avoid it.
Sorry about the loose parts. The problem wasn't bad assembly, it was the parts coming loose during shipping. They are using threadlock now to stop that problem. It's unlikely your boards are damaged if they are hashing on all 4 die, which sounds like they are.
What are your die temps and voltages? (if you run the "hf" version of cgminer it reports all dies/voltages)
Since your unit obviously had quite a ride during shipping, I'd look at each die temp and see if there is a discrepancy. You might need to take the cooler head off, re-grease the thermal interface, and re-tighten the cooler. Apparently some of those earlier orders that had loose standoffs have a high chance of having a loose cooler.
Also, what hash clock speed are you using? Have you tired other speeds?
-Phil