Swapping DCRCs and cable seem to have helped in finding a config where all channels are responding to QET bias changes. On DCRC1, the QET bias change is minimal on Side 1 channels.
DCRC4 seem to sometimes respond to QET bias changes and sometimes not.
Tried using the ReVE board to look for traces with the new DAQ. Plugging in IO cable and checking pins on 100pin connector shows QET A, C and D but not B. The IO used has known bad QET C, so tested for QET A and D. Couldn't get to see traces with PulveViewer. Error related to not getting any new events.