lightfoot (OP)
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Activity: 3150
Merit: 2257
I fix broken miners. And make holes in teeth :-)
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March 28, 2014, 01:24:39 AM |
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So anyway a quick update: I installed 7 more chips on my other single/30 a few weeks ago, ran well at 56gh overall. However last weekend I powered it down and it came up with only one side.
Turns out the 1850 chip wasn't working right, so I pulled it and replaced it. Now one set of FETs is working, but the other is not. Enough to keep the board hashing with a fan pointed at the running FETs but still kind of odd.
And I have another single board that has one side down. At first I thought the problem was the 1850 and swapped it, but sure enough 0 volts. Then I found the FETs were shorted and replaced half of them. Then I checked the caps and found one of them (the one between vcc and ground) was shorted, which was shutting down the chip. Pulled the cap and the board is coming up but only at .6 volts, which is kind of odd.
Just got a new set of FETs in, will replace this weekend and see what happens. It would be nice to get the other 30gh running on this board.
Never dull, always fun.
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