3VDUAL power is out of normal range [Expected 3.30 current 3.10]

This is a posting for information only, with information I could not find in other postings.  I replaced the PSU in my ReadyNAS Pro Pioneer when the unit started failing to restart after being shut down - but would eventually come on, apparently after warming up.  The replacement unit was a Seasonic SS-300SFD as mentioned in other posts, which I sourced from Scan Computers in the UK. The replacement unit had slightly different connectors.  Yes, the main 24-pin ATX connector cable was too short, as mentioned in other posts, so I needed an extension cable (30 cm for me).  There were two sets of power connectors with two Molex 4-pin plugs each, and a further single power connector with two 5-connector plugs.  There are 3 female Molex connectors in the ReadyNAS requiring power (with 2 drives connected to each). When I used two 4-pin plugs from one power line to power the disk drives in the ReadyNAS, I got floods of the message about power being out of range - i.e. one power line was being used for 4 drives (since internally in the ReadyNAS each connector goes to 2 drives).  When I rewired the 5-connector line to a 4-connector plug (dropping the orange 3.3V wire), and used that as the third 4-pin plug, it worked fine.  (There is also a 4-pin square 12V ATX power connector - no need to adjust that.)  I hope this information might help others needing to do something similar to their units.