I recently bought a Dell N3248PXE-ON switch and it's great. Occasionally however, the PSU fans spin up with an annoyingly high pitched whine. It's still fairly quiet, but the pitch of the fans is definitely a problem. I'd like to try replacing the fans, but I'm not sure what replacement fans will work. The PSU fan is a Delta FFB0412EN in a Delta DPS-1600AP-34 PSU. They're 12V 4-pin fans, so I was wondering if I could replace them with something like the Noctua NF-A4x20 PWM fans. My temps have been stable for a week and aren't at all alarming, though there's no temperature sensor for the PSUs. Does anybody have any experience replacing fans in a PSU like this and/or have a recommended quality but less annoying fan I could try?
System Description: Dell EMC Networking Switch
System Up Time: 9 days, 13h:11m:59s
System Contact:
System Name:
System Location:
Burned In MAC Address: 18DD.5DDD.DD20
System Object ID:
System Model ID: N3248PXE-ON
Machine Type: Dell EMC Networking N3248PXE-ON
System Thermal Conditions:
Unit Temperature State
(Celsius)
---- ----------- -----------
1 53 Good
Temperature Sensors:
Unit Description Temperature
(Celsius)
---- ------------------ -----------
1 On-Board CPU 47
1 On-Board NPU1 42
1 On-Board PHY1 36
1 On-Board PHY2 35
1 On-Board NPU2 45
1 On-Board FAN 35
1 AQR PHY 1 53
1 AQR PHY 2 53
1 AQR PHY 3 50
1 AQR PHY 4 48
1 AQR PHY 5 49
1 AQR PHY 6 45
1 POE MGMT 37
Fans:
Unit Description Status
---- ----------- -------------
1 Fan Tray 1 OK
1 Fan Tray 2 OK
1 Fan Tray 3 OK
Power Supplies:
Unit Description Status Average Current Since
Power Power Date/Time
(Watts) (Watts)
---- ----------- ------------ ---------- -------- -------------------
1 System Non-critical 4.6 126.0
1 PSU1 OK 75.7 74.0 May 17 12:45:48 2021
1 PSU2 OK 53.2 52.0 May 17 12:46:21 2021
1 EPS No Power
USB Port Power Status:
----------------------
Device Not Present
System Description: Dell EMC Networking Switch
System Up Time: 9 days, 13h:11m:59s
System Contact:
System Name:
System Location:
Burned In MAC Address: 18DD.5DDD.DD20
System Object ID:
System Model ID: N3248PXE-ON
Machine Type: Dell EMC Networking N3248PXE-ON
System Thermal Conditions:
Unit Temperature State
(Celsius)
---- ----------- -----------
1 53 Good
Temperature Sensors:
Unit Description Temperature
(Celsius)
---- ------------------ -----------
1 On-Board CPU 47
1 On-Board NPU1 42
1 On-Board PHY1 36
1 On-Board PHY2 35
1 On-Board NPU2 45
1 On-Board FAN 35
1 AQR PHY 1 53
1 AQR PHY 2 53
1 AQR PHY 3 50
1 AQR PHY 4 48
1 AQR PHY 5 49
1 AQR PHY 6 45
1 POE MGMT 37
Fans:
Unit Description Status
---- ----------- -------------
1 Fan Tray 1 OK
1 Fan Tray 2 OK
1 Fan Tray 3 OK
Power Supplies:
Unit Description Status Average Current Since
Power Power Date/Time
(Watts) (Watts)
---- ----------- ------------ ---------- -------- -------------------
1 System Non-critical 4.6 126.0
1 PSU1 OK 75.7 74.0 May 17 12:45:48 2021
1 PSU2 OK 53.2 52.0 May 17 12:46:21 2021
1 EPS No Power
USB Port Power Status:
----------------------
Device Not Present
Last edited:
