Received my S3's today and set them up this evening.  The first one has no lines in the 'ASIC status' but the second one has a single line in it's 2nd 'ASIC status':

00000000 00000000
00000000 000000-0

Both are running off an EVGA 1300 Gold PSU using two PCI-e cables each.

I took the lid off the second S3 and took the heat-sinks off and cleaned up all chips re-applied a small dot of thermal CPU paste, reassembled and the 'ASIC status' was initially all clear and then after a couple of reboots the line re-appeared in the 'ASIC status'.  Any suggestions?

The first S3 has ~421 and ~420 GHs running at stock frequency of 218.75.

The second S3 has ~475 and ~419 GHs running at same stock frequency.

They've only been running for half an hour.