Checking the working temperatures
Our tests show that the passive cooling installed by the Banana Pi team over all the board’s chips works incredibly well. These are the temperatures recorded during R4 Pro operation. It’s also worth noting that the two fans built to push hot air out of the case perform excellently.
root@OpenWrt:~# sensors
mt7996_phy0.2-pci-0100
Adapter: PCI adapter
temp1: +37.0°C (high = +120.0°C, crit = +110.0°C)
mt7996_phy0.0-pci-0100
Adapter: PCI adapter
temp1: +40.0°C (high = +120.0°C, crit = +110.0°C)
mxl862xx_dsa_0:03-mdio-3
Adapter: MDIO adapter
temp1: +40.3°C
mxl862xx_dsa_0:01-mdio-1
Adapter: MDIO adapter
temp1: +40.3°C
nvme-pci-20100
Adapter: PCI adapter
Composite: +34.9°C (low = -0.1°C, high = +82.8°C)
(crit = +84.8°C)
Sensor 1: +34.9°C (low = -273.1°C, high = +65261.8°C)
mt7996_phy0.1-pci-0100
Adapter: PCI adapter
temp1: +40.0°C (high = +120.0°C, crit = +110.0°C)
mxl862xx_dsa_0:02-mdio-2
Adapter: MDIO adapter
temp1: +40.3°C
mxl862xx_dsa_0:00-mdio-0
Adapter: MDIO adapter
temp1: +40.3°C




It is already on presale.
Yes, I know, thank you.
Hi, the main problem about the BPI R4 is its BE14 Wifi NIC (6 antennas and many shielding/noise problems).
In your pictures, we can clearly see the new BE19 NIC with 14 antennas: did you test it? Is it going to be released to the public this year? Thank you!
HI. Not yet, but from what I’ve heard, it should officially be released in a few weeks.
Thank you so much! Will you make a new post when the BE19 will be out? Did you have the R4 Pro for testing or these are just info from the company?
Not yet, but I’ll probably test the R4 Pro and the Wi-Fi expansion board and review them once both are ready and available.
For now, it’s just general news info.
Great write up worth adding the battery is uses the ML1220 as you have correctly used instead of the CR1220 because the board features a tickle charge, but what’s more important to note, is that tickle is 3.3v to 3.4v, the ML1220s nominal is 3v, charged it’s around 3.35v, which is 0.35v higher than a CR1220. The BPI team lists the No 42 as CR1220 but it’s important to note thier POS is wrong. The other thing, you mention the battery keeps certain boot options, while this is true for a PCs, it’s untrue for the BPI, the only function… Read more »
Thank you for providing the information; it’s greatly appreciated.