I changed the Power Conditioning Board D1001474 but to no avail.  Rerouted cables to ease strain, added an extension to the sync cable but none was decisive.  Filiberto suggested we take the cable backshells apart and look there; did not do this with the power cable.  We did not really see anything but Fil did play with the shield to shell connection (I think) but still nothing really made things great.

Do have the rack currently top side up so that is a start.  But, when I put the table up on the cable tray (again, changing the cable strains) things went noisy again.  TJ was now in chamber limiting our access and muddying the waters with his platform noise.  Left the CPS crate table on the ground and it now looks pretty good.  Again though, this seems too dainty.  Will continue troubleshooting.