ZimaBoard 832 #
A compact x86 single-board server, used as the mobile site’s core router. Low power and passive cooling suit a portable site.

Specs #
| Attribute | Value |
|---|---|
| Model | ZimaBoard 832 |
| CPU | Intel Celeron N3450 quad-core (1.1-2.2GHz) |
| Memory | 8GB LPDDR4 |
| Storage | 32GB eMMC |
| Ethernet | 2x Gigabit LAN (Realtek RTL8168/8111) |
| Expansion | PCIe x4, 2x SATA 6.0 Gb/s |
| USB | 2x USB 3.0 |
| Video | Mini DisplayPort (4K/60Hz) |
| Power | 6W TDP, 12V DC barrel jack |
| Cooling | Passive (aluminum case heatsink) |
Selection Rationale #
- Compact x86 form factor fits mobile site
- Dual Gigabit Ethernet for WAN/LAN separation
- Low power consumption (<6W TDP) suitable for always-on operation
- Passive cooling (fanless, silent) for noise-sensitive environments
- x86 architecture supports OPNsense natively
The Realtek NICs are an open problem. The LAN NIC,
re0, has recurring watchdog timeouts on FreeBSD’sre(4)driver: INC-0004. A replacement with non-Realtek NICs is being considered: the
In Service #
| Host | Role |
|---|---|
dv02cor002p01 | Core Router |
Physical #
| NIC | Use | Connects to |
|---|---|---|
re0 | LAN. Every VLAN is built on it | Switch gi1/0/1, trunk, native VLAN 999, all VLANs tagged |
re1 | WAN | The edge router’s LAN, by DHCP |
- Power: 12V DC barrel jack.
- Console: Mini DisplayPort to a monitor, plus a USB keyboard. It has no VGA or HDMI; see Core Router console recovery.
Firmware #
The BIOS version is not recorded. OPNsense is in the Software Catalog.
Evaluation #
| Role | Core router |
| Current | Not yet evaluated In service from before the Evaluation policy |
Revisions #
None yet.