High noise TL-SG3428XMP
I have a problem with high noise, but I have found that it only occurs with the v2.0 model.
I own two v1.0 models and they do not have the noise problem.
switch model v1.0:
switch model: TL-SG3428XMP v1.0 SN: 2224008000768 Firmware: 1.0.3 Build 20210409 Rel.52950
switch model: TL-SG3428XMP v1.0 SN: 2224008000767 Firmware: 1.0.3 Build 20210409 Rel.52950
When switched on, the built-in fans run at full speed, but only until the system boots up and the sys light starts flashing. From that point on, the speed is reduced and the operation is refined.
switch model v2.0:
switch model: TL-SG3428XMP v2.0 SN: 2226338000036 Firmware: 2.0.0 Build 20220301 Rel.54959
switch model: TL-SG3428XMP v2.0 SN: 2226338000109 Firmware: 2.0.0 Build 20220301 Rel.54959
These both behave differently. Even when they boot up the fans are still running full blast. That's without any load. Turning off PoE on all ports doesn't help.
Noise meter recording with 60 sec measurement for each model.
v1.0: http://imgway.cz/s/4Kme
v2.0: http://imgway.cz/s/4Kmf