UniFi Switch 16 XG fan modification
Table of Contents
My new 16 port 10G switch was too loud for my taste. So I fit Noctua NF-A4x20 FLX fans instead.
After the modification, the switch looks the same on the outside.
Original Fans
SUNON MC30151V2-0000-G99
NOTE: The switch is of course operated with the lid back on after the modification.
Are SUNON MC30151V2-0000-G99. This post, I found while searching, says 4.8 CFM @ 7000RPM, 27 dbA (8.2 m³/h).
FWIW, the closest specs I found were for 000U-A99 those say 10.2 m³/h.
Note when replacing, air is blown out by the original 12V fans.
note the embossed arrows on the fans
The depicted low noise adapters are from an earlier modification, when I switched to 40mm fans I removed them.
40mm Fan Adapters
3D print by Andreas Bleischwitz
Since the UniFi Switch 16 XG comes with 30mm fans, a physical adapter was needed.
Andreas Bleischwitz was kind enough to print me these adapters from David Butler.
40mm Replacement Fans
I chose Noctua NF-A4x20 FLX fans. It should be OK to use these (9.4 m³/h, 14.9 dBA) with LNA NA-RC10 (8.3 m³/h, 12.2 dbA) but I’m unsure about the ULNA NA-RC12 (6.9 m³/h, 8.5 dbA). In any case, temperature needs to be monitored, no matter if factory fans or replacement fans.
I used the provided screws for attaching them to the adapters and the screws that held the factory fans to attach the adapter to the case.
Using the NA-AV3 silicone anti-vibration mounts had the fans against the PCB and I did not want that.
For now no Low-Noise Adaptors are fitted, I might change that though.
Finished State
Stupidly I forgot to take a picture before closing the switch again and I am loathe to reopen it just for that since David Butler has a very nice picture linked from here.
picture by David Butler
Temperature without LNA
Network Connections in Use
So far it runs well below the Alert Temp of 75°C with
- 2 DAC cables, connected as aggregate to a UniFi Switch 48
- 2 Ubiquiti Unifi US-16-XG, connected to my hypervisor
- 4 copper ports (13 - 16), connected one each to a TerraMaster F5-422
UniFi Measurements After 4 Hours, no LNA
In UniFi Controller it reports
- Temperature 64℃
- Fan Level 74
- Uptime 3h 56m 40s
Details After 4 Hours, no LNA
sw-10g-US.v4.0.80# swctrl env show
General Temperature (C): 64
Temp Sensor Temp (C) State Max Temp (C) Alert Temp (C)
=============== =========== =============== ============ ==============
PHY 64 Normal 64 75
REAR 47 Normal 48 75
CPU 48 Normal 48 75
Fan Duty Level: 74
Fan Speed Duty level State
=============== ========== ========== ===============
FAN-1 5973 74 Operational
FAN-2 5818 74 Operational
Details After 4 Hours and 30 Minutes, no LNA
sw-10g-US.v4.0.80# swctrl env show
General Temperature (C): 60
Temp Sensor Temp (C) State Max Temp (C) Alert Temp (C)
=============== =========== =============== ============ ==============
PHY 60 Normal 64 75
REAR 48 Normal 48 75
CPU 50 Normal 50 75
Fan Duty Level: 69
Fan Speed Duty level State
=============== ========== ========== ===============
FAN-1 5947 69 Operational
FAN-2 5800 69 Operational
Details After 15 Hours, no LNA
sw-10g-US.v4.0.80# swctrl env show
General Temperature (C): 61
Temp Sensor Temp (C) State Max Temp (C) Alert Temp (C)
=============== =========== =============== ============ ==============
PHY 61 Normal 64 75
REAR 50 Normal 50 75
CPU 52 Normal 52 75
Fan Duty Level: 70
Fan Speed Duty level State
=============== ========== ========== ===============
FAN-1 5973 70 Operational
FAN-2 5818 70 Operational
Details After 1 Day and 6 Hours, no LNA
sw-10g-US.v4.0.80# swctrl env show
General Temperature (C): 59
Temp Sensor Temp (C) State Max Temp (C) Alert Temp (C)
=============== =========== =============== ============ ==============
PHY 59 Normal 64 75
REAR 48 Normal 50 75
CPU 50 Normal 52 75
Fan Duty Level: 68
Fan Speed Duty level State
=============== ========== ========== ===============
FAN-1 5914 68 Operational
FAN-2 5732 68 Operational
Details After 4 Day and 2 Hours, no LNA
sw-10g-US.v4.0.80# swctrl env show
General Temperature (C): 60
Temp Sensor Temp (C) State Max Temp (C) Alert Temp (C)
=============== =========== =============== ============ ==============
PHY 60 Normal 64 75
REAR 49 Normal 50 75
CPU 51 Normal 52 75
Fan Duty Level: 69
Fan Speed Duty level State
=============== ========== ========== ===============
FAN-1 5953 69 Operational
FAN-2 5781 69 Operational
Details After 7 Day and 3 Hours, no LNA
sw-10g-US.v4.0.80# swctrl env show
General Temperature (C): 60
Temp Sensor Temp (C) State Max Temp (C) Alert Temp (C)
=============== =========== =============== ============ ==============
PHY 60 Normal 64 75
REAR 49 Normal 51 75
CPU 51 Normal 53 75
Fan Duty Level: 69
Fan Speed Duty level State
=============== ========== ========== ===============
FAN-1 5914 69 Operational
FAN-2 5750 69 Operational
Details After 10 Day and 18 Hours, no LNA
sw-10g-US.v4.0.80# swctrl env show
General Temperature (C): 59
Temp Sensor Temp (C) State Max Temp (C) Alert Temp (C)
=============== =========== =============== ============ ==============
PHY 59 Normal 64 75
REAR 48 Normal 52 75
CPU 50 Normal 53 75
Fan Duty Level: 68
Fan Speed Duty level State
=============== ========== ========== ===============
FAN-1 5863 68 Operational
FAN-2 5696 68 Operational
Details After 57 Days, no LNA
sw-10g-US.v4.0.80# swctrl env show
General Temperature (C): 58
Temp Sensor Temp (C) State Max Temp (C) Alert Temp (C)
=============== =========== =============== ============ ==============
PHY 58 Normal 65 75
REAR 47 Normal 53 75
CPU 49 Normal 55 75
Fan Duty Level: 67
Fan Speed Duty level State
=============== ========== ========== ===============
FAN-1 5775 67 Operational
FAN-2 5642 67 Operational