12-11-2019, 07:19 AM
For anyone interested, I did some testing. Both were with the PBP on and mostly discharged, logged in to the desktop, and with the CPU moderately loaded via a muted YouTube video playing in Firefox.
Charging via barrel jack = audible high pitched coil whine.
Charging via USB-C = completely inaudible coil whine.
Not sure why the difference. Something to do with USB-C PD? ¯\_(ツ)_/¯
Charging via barrel jack = audible high pitched coil whine.
Charging via USB-C = completely inaudible coil whine.
Not sure why the difference. Something to do with USB-C PD? ¯\_(ツ)_/¯