ZimaBoard 2 Review: A Quiet, Compact x86 Server for a Small Homelab

Most single-board computers make you choose. Either you get the small, quiet form factor of a Raspberry Pi and live with ARM compatibility headaches, or you get real x86 power in a box that hums. The ZimaBoard 2 tries to sit in that gap: a palm-sized x86 server that runs regular Docker images and, in my setup, is quiet enough that I forget it’s on.

I’ve set mine up as the core of a small, security-focused homelab: a self-hosted password manager, network-wide DNS filtering, and a VPN mesh, all running 24/7. A quick honesty note before we start: I’ve only had it a few days at the time of writing, so treat this as early hands-on impressions rather than a long-term reliability verdict. There are plenty of synthetic benchmarks for this board elsewhere, so I’m focusing on what it’s actually like to set up and live with as an always-on box.

Specifications

Compared to the original ZimaBoard, the jump is real. The N150 is meaningfully faster than the old Apollo Lake chips, LPDDR5x replaces DDR, and gigabit becomes 2.5 gigabit. This isn’t a minor spec-refresh, it’s a full generation ahead.

Design and build

The chassis is a big part of the cooling. The whole thing is a finned aluminium block that acts as a heatsink, and the board is designed so it can run passively. Worth being precise here, though, because the marketing leans on the “fanless” angle: the 832 also ships with a small active cooling fan in the box (alongside the power adapter and a SATA Y-cable). I run mine with that fan fitted, and I’d recommend it, for reasons I’ll get to in the cooling section. It also looks like something you can leave out on a desk rather than hide in a closet.

The port selection is unusually generous for the size. You get two 2.5 GbE ports (the standout feature, more on that below), two SATA III for drives, a PCIe 3.0 ×4 slot, two USB 3.1, and a miniDP that does 4K. With the HDD rack attached it turns into a small storage box without NAS-appliance pricing. In my case that’s a 1.52 TB SATA drive, which ZimaOS handles without fuss.

The dual 2.5GbE deserves a callout, because it’s what separates this from a Pi-class device for anyone doing network work. Two fast NICs mean the board can sit between network segments (router, firewall, inline capture point) instead of just hanging off a switch as one more client.

Living with ZimaOS

ZimaOS is the Debian-based, NAS-oriented OS that ships pre-installed, and it’s the reason the board is approachable. The app store installs containerised services in a couple of clicks — I had Vaultwarden and AdGuard Home running without touching a command line for the basics.

Setup was smooth across the board for me. Vaultwarden, AdGuard Home, Tailscale, Gitea and the rest went in without drama, and the services just worked.

That’s actually the thing I like most about ZimaOS: it’s beginner-friendly on the happy path, but it’s still a normal Debian box underneath. When you do want to drop to a shell for something non-standard, you can, and nothing is locked away. You get the convenience of an appliance without giving up the flexibility of real Linux.

The full walk-throughs of what I set up are in the companion posts:

• Self-hosting Vaultwarden with Cloudflare Tunnel

Performance

For a 10-watt-class chip, the N150 is more capable than its size suggests. Public benchmarks put it around Geekbench 1235 single-core and 2980 multi-core, and the 2.5GbE moves data at a real-world 275–280 MB/s, actually saturating the link where cheaper boards often can’t.

In practice, none of that is really the point. My container stack (Vaultwarden, AdGuard Home, Tailscale, and a pile of small services) barely registers on the CPU. What matters more is that the N150 is x86. Every Docker image just works: no arm64 tag roulette, no emulation, no “this project doesn’t publish an ARM build.” For a homelab that mostly runs other people’s containers, that compatibility is worth more to me than raw clocks.

The first ceiling you’d hit is RAM, but it sits higher than I expected. My live dashboard shows 37% of 8 GB used with a busy stack running: Vaultwarden, Cloudflared, AdGuard Home, Tailscale, Gitea, a self-hosted dashboard, and a handful of smaller tools. I’ve had zero RAM trouble at 8 GB. The 16 GB “1664” model obviously gives you more room, and if I were buying today with future services in mind I’d probably take the headroom. Either way, think of this as a services box rather than a virtualization host or a local-AI machine, and it holds up fine.

Power and thermals — the honest part

Idle power is excellent, and I can back that up from my own always-on box rather than a spec sheet. With my full stack running but mostly idle, the ZimaOS dashboard reports the CPU at about 9%, pulling 2.9 W and sitting at a cool 47 °C (that’s with the included fan running). Independent reviews line up on power: under 4 W at idle, 6–8 W with a normal service stack, and only approaching the 10 W TDP (with peaks in the mid-teens) when you push all four cores. On an always-on box, that’s a rounding error on the electricity bill.

Cooling is where the “fanless” marketing needs a caveat. Several reviewers ran the board passively, with no fan, and measured the N150 hitting the 90s °C under sustained load, with even single-threaded tasks pushing 80–90 °C. That’s the number to keep in mind if you’re drawn to the silent, fanless idea: purely passive, this chip gets genuinely hot under load.

Here’s the thing though: IceWhale includes an active cooling fan in the box, and running it makes that whole problem mostly go away. That’s why I keep it fitted. Mine runs the fan permanently and it’s essentially inaudible, so I get the low temperatures (47 °C idle) without any real noise penalty. It’s a small fan doing an easy job on a 10 W chip, not a screaming laptop cooler. So my honest take is: treat the board as fan-cooled, use the fan they gave you, and the thermal worry that shows up in fanless reviews basically disappears. If silence matters more to you than temperature and your load is light, passive is an option, but for anything that works the CPU I’d run the fan.

What I actually run on it

This is the section that matters more to me than any benchmark. The ZimaBoard 2 is the hub of a deliberately small, security-minded homelab:

• Vaultwarden (via Cloudflared) — my password manager, local, HTTPS through Cloudflare Tunnel, no open router ports.
• AdGuard Home + Tailscale — network-wide ad/tracker blocking that follows my phone onto cellular through the tailnet.
• Gitea — self-hosted git for my own projects.
• Homarr as a dashboard, plus PeerDrop and a few smaller tools.
• Storage on a 1.52 TB SATA drive (118 GB used so far), reported “Healthy” in ZimaOS.

All of that together idles at around 9% CPU and 37% RAM. Mostly the board just disappears into the setup and I forget it’s there, which is exactly what I want from an always-on server. It’s quiet, it barely uses any power, and it stays out of the way.

What I would not use it for

Honest limits, not marketing:

• Heavy sustained CPU work. With the fan it stays cool enough, but this is still a 10 W N150, not a workhorse. A 24/7 flat-out transcoder or build server wants more cores and more thermal headroom than this board has.
• Anything RAM-hungry. 8 GB has been plenty for my container stack, but it’s still the first wall you’d hit: no local AI of any consequence, no big VM lab. The 16 GB “1664” model helps if you’re planning ahead.
• Mission-critical single point of failure. It’s one small box. If it holds your only copy of anything, that’s a backup problem, not a ZimaBoard problem.
• eMMC as your data drive. The 32 GB of eMMC is for the OS. Put real data on SATA, and keep an eye on write wear if you have chatty logs.

Who it’s for

First, the price. At $339 for the 832, this is not a cheap board. But the usual “just buy a Raspberry Pi” retort is weaker than it used to be. Thanks to the 2026 DRAM shortage, a bare Pi 5 with 8 GB now runs around $130, and the 16 GB Pi 5 is about $305, and that’s before you add a case, power supply, and storage to make it usable. The comparison gets even closer at 16 GB: the ZimaBoard 1664 is $399 against roughly $305 for a bare 16 GB Pi 5. So the real gap to a comparably-equipped Pi is closer to 2× than the 4× it would have been a year ago, and it shrinks further once you count what’s already built in.

For the money, the ZimaBoard gives you things a Pi structurally can’t. It’s x86, so no ARM compatibility roulette. It has dual 2.5 GbE, which is network work a Pi simply can’t do. And it has SATA plus a PCIe slot for real storage, plus onboard eMMC. Worth noting that both platforms are riding the same RAM-shortage price wave right now, so treat all of these figures as a moving target.

If you want a quiet, low-power x86 box to run Docker services, a light NAS, DNS filtering, a VPN, or home automation, the ZimaBoard 2 is one of the most sensible options I’ve used, and the expansion options give it headroom that Pi-class boards don’t have. If your budget is tight and you only need a couple of light containers, a Pi still wins on price. And if you’re after raw compute, transcoding muscle, or a virtualization host, look at something bigger with active cooling.

Verdict

The ZimaBoard 2 pulls off the hard combination: quiet, low-power, and proper x86, all at once. The one thing I’d want a buyer to know going in is the cooling story: purely passive, the N150 runs hot under load, but IceWhale includes a fan that’s effectively silent and takes that problem off the table, so run it. Past that, for a services-first homelab that idles most of the time, this is exactly the box I’d pick. In the few days I’ve run it, it’s handled my password manager and DNS filtering without a hiccup, quietly enough that I keep forgetting it’s on the shelf. Long-term reliability is something I’ll only know after months, and I’ll update this if anything changes, but the early signs are good. For this kind of use, that’s the whole point.