For these kinds of devices it's important to have the fans as exhaust rather than intake. The 25mm fans as exhaust would have drawn air in from the vent holes on the other side and created airflow across the entire board. You can see on any switch that comes with a fan it will be exhaust.
marburg
If you want to run 10G copper, buy a RJ45 switch. They're designed to deal with the heat.
10G copper transceivers produce several watts of heat each, while with fiber it's only a fraction of a watt in idle and still <1W with the link maxed out.
The copper transceivers are the cause of both the power supply and the overheating problems you encountered.
Not really the switch's fault.
The 25mm fans probably would've worked as exhaust fans. A piece of cardboard and a few strips of capton tape to block off some areas and force more air over the ports ... you probably could block off the 'upper' two third of the board and there'd still be more airflow around the chip than there was with fully passive cooling.
protator
As others have said, copper SFPs pull 3x the power of a fibre or DAC cable. Use Fibre or DACs wherever possible, it cuts your power draw and heat output. And everyone also recommends keeping a 1 slot gap between copper SFP+ modules, you can put a fibre or DAC in the gaps, but nothing else.
truckerallikatuk
if you use the rj45 copper then yes it WILL overheat, they get insanely hot, not the switches fault... stick with sfp+ cables...
LiLBitsDK
i saw in a video, that especially the copper adapter is getting very hot because it draws so much more power compared to the other fibercable options. I dont think overheating would be a Problem if you dont use rj45 and instead use fiber only. Just a hypotesis, but ift draws near to no power it should behave that way or?
bloodyskiste
Since you have the switch placed on top of your pfsense box, you should consider getting the 12V for the switch from the old HP's PSU. If it's like any of my HPs then it should have a rather nice 12vO 80+ Platinum or Titanium PSU.
All the power the switch could ever need, and far more reliable and energy-efficient than a crappy little no-name power brick made by china's finest.
protator
i recently got a sodola 2.5 + 2 10g - works great once you enable jumbo frames- the only things i would add to this would be maybe to make more vents in switch case to lower static pressure and pass more air and add more ram to opnsense fw in case you want to run intrusion detection and stuff like zen armor
shephusted
thank you for the Informations.... good to knew... greatings from Hamburg ;-)
DennyHeuer
Greetings fellow Wolfe. I see your tribe could afford the 'e' as well.
PrimalNaCl
Changing the VLAN is similar to how Moxa does it.
katlegobopape
let's say: fiber spf+ consumes 0.7-1W per port, copper - 2-5W per port. they are power and temperature monsters...
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