Cooling the RV2 Board Componentes
To ensure optimal cooling for critical board components such as the 512MB RAM, Sifower SF2H8898 SoC, and two ethernet control chips, we incorporated aluminum heatsinks, along with two extras in smaller dimensions. Below is a detailed list of these heatsinks and their dimensions:
| no. | component | dimension |
| 1 | Sifower P1240-CT chip | 14 x 14 x 6 mm |
| 2 | Sifower SF2H8898 chip | 18 x 18 x 13.5 mm |
| 3 | 512MB DDR3 RAM | 13 x 2.8 x 24 mm |
| 4 | SF23P1240 1G PHY chip | 5.5 x 5.5 x 4.5 mm |
| 5 | EN8811H 2.5G PHY chip | 8 x 8 x 4.5 mm |






Fantastic buy. OpenWRT compatible only on the snapshot version, but it runs smoothly. Strange choice to put PoE on the WAN port: my LAN switch has PoE, so I swapped WAN and one of the LAN ports to make it work.
I understand. Yes, it’s cheap, good quality, and works well.
Bought a CR1220 battery, but no way to have RTC work.
Bought an M.2 disk, but it seems not recognized (maybe because is a SATA one, not NVME: very difficult to find M.2 NVME disks with B-Key).
Lacks a lot of informations and settings…
Try the ImmortalWrt snapshot, its better. SATA shouldn’t work, so your right.