procurve 2920-48 with 10gbase-t module errors on client

[philhu0724]

I have this switch, with the 10gbaset module (2 10gbe ports, plugs in back).

Attached a QNAP nas server as only connection at this point, to network.  Link light both sides, transfers work.

All clients of the QNAP are on 1gbe nics.

Seem to see errors on the QNAP nic monitor counters, but not on the switch counters, and it seems it happens more often when a 1gb client is hitting the QNAP for large data files, like gig files.  I am assuming it is due to trying to overload the pipe between the 10gbe nas connection and the 1g user connection.

Does anyone else see this?  Are they ignorable?  Funny the NAS counts the errors but the switch does not.  On 600G tranfer, got about 50 errors, and all it says on the NAS is error count, not error types