RB4011iGS+5HacQ2HnD-IN vs RB4011iGS+RM

Hardware MikroTik hardware general
1

Ref: RB4011iGS+5HacQ2HnD-IN vs RB4011iGS+RM Tested ambient temperature

Based on my old post, if I remove the wifi chip from the 4011 with wifi, would it support 70 degrees? In the place where it is installed it doesn't reach 40, however I don't use wifi and if lowering its temperature would allow me to do that!

RB4011iGS+5HacQ2HnD-IN Tested ambient temperature -40°C to 45°C
RB4011iGS+RM Tested ambient temperature -40°C to 70°C

rb4011igs-plus5hacq2hnd-in_8
rb4011igs-plus5hacq2hnd-in_81920×1080 619 KB

rb4011igs-plus-rm_6
rb4011igs-plus-rm_61920×1080 624 KB

2

Only the 2.4GHz module can be (easily) removed, since it's a module.
The 5GHz chip and it's amplifiers are soldered on the mainboard as you can see for yourself, while it might be possible to cut only power to it, it might have undesired effects.
Just buy the proper device for the job to start with. Less things to worry about :slight_smile:

3

I used to run a MikroTik RB4011 with Wi-Fi in my office as my main device. I bought it when it was first released. Recently, I moved it to a rack in another location and replaced it in my office with a MikroTik hAP ax².

Currently, the RB4011 is being used as a managed switch, and the Wi-Fi interface is disabled.

My question is: does disabling the Wi-Fi interface help reduce the device temperature, even slightly, or does it make no significant difference? Also, would removing the wireless driver/package entirely help reduce the temperature any further, or would the impact still be negligible?

4

Just POC ideas:

  • remove any WiFi removable elements, do not desolder anything.
  • try to mount used cheap laptop radiator like this one - two pads that may cover/reach both RTL chips

  • try to power the fan to help the air move across the internals
  • as bottom of chassis is a radiator for the CPU, you can try to extend it with bigger copper element attaching it to outer surface
  • or like that
  • invest into monster like that, if only it fits inside or as an external active bottom additional radiator

  • try to install through holes in the chassis th heat pipes + radiators

Each solution is in a DIY style and brings equal amounts of satisfaction and frustration. :slight_smile:

5

I wouldn't post pictures of so much copper in these days.

6

You can easily test that yourself because the device has a temperature sensor visible under System→Health.

My guess is you would not be able to notice the difference. E.g. in the past I tested the effect of changing the CPU frequency and it made absolutely no difference (contrary to what happens in a PC).

I do have the WiFi model and in my home it is sitting on top of a table (so no optimal airflow through the slots at the back), an 8-port switch is on top of it, and on top of that is a VDSL modem. So I have placed a small fan to the back of this stack, and it helps to keep temperatures of the devices acceptable during summer.