Lüfter für OS mega

The housing size is generously therefore a fan isn't necessary when a hard disk is installed.

The power supply is also external, so the heat development is even lower.

For me, the CPU temperature is without hard drive at 54 ° C, there is still enough air to the top, so I would not worry.

If you still want to install a fan, i will try to find

Unfortunately the nano have no RS232, so that you can try to flash the firmware over it.

The best solution is to contact your distributor to send the box to the company , in order to fix the problem