This confirms my theory, even more, I think you are confusing yourself, the miner only unders 1,2,3 which is the 18pins attached to the control board, clear? now that we got this out of the way, you should understand that since:
Chain 1 was in location 1 = chain 1 is bad
Chain 1 moved to location 2 = chain 2 is bad
this means chain 1 (what you call chip) is bad!
If the result was:
Chain 1 was in location 1 = chain 1 is bad
Chain 1 moved to location 2 = chain 1 is bad
then chain 1 is good and the problem is the PSU or the control board, but this isn't the case.
if you are confused still, do this.
Remove chain B and C , keep only chain A and do 3 tests
- 1 > ChainA
- 2 > ChainA
- 3 > ChainA
The results will be:
-Chain 0 has 6 Asics
-Chain 1 has 6 Asics
-Chain 2 has 6 Asics
I confirm that you are absolutely right
How much is each chip price i see some videos that one faulty chip on a hash board could cause problem...