Minisforum UM690
Measured idle power
~8–10 W idle
Wall meter
Source: Minisforum UM690 Review An AMD Ryzen 9 6900HX Mini PC — ServeTheHome · dated 2023-03-05
ECC memory support
No cited source — left blank rather than guessed.
NIC chipset
Intel I225-V 2.5GbE
Source: Minisforum Venus Series UM690 desktop review — Notebookcheck · dated 2023-02-03
RAM ceiling
64 GB (2× DDR5-4800 SODIMM)
Source: Minisforum Venus Series UM690 desktop review — Notebookcheck · dated 2023-02-03
IOMMU / GPU passthrough
Proxmox install needs a GRUB edit (initcall_blacklist=sysfb_init) due to the Radeon 680M; iGPU passthrough reported working only with specific vBIOS files and vfio device IDs.
⚠ AMD reset bug
Radeon 680M (Rembrandt RDNA2) is subject to the AMD GPU reset bug — the card can only be used once per host power-on; the vendor-reset DKMS module is the standard workaround.
Source: Working around the AMD GPU Reset bug on Proxmox using vendor-reset — Nicholas Sherlock · dated 2020-11-22
Where to buy
Deterministic search links for “Minisforum UM690” — not specific listings, and not paid placements. Prices, stock and the exact SKU/revision vary; confirm the unit you receive against the cited specs above.
Frequently asked questions
What is the Minisforum UM690's idle power consumption?
Minisforum UM690 (AMD Ryzen 9 6900HX) idles at ~8–10 W idle. Method: Wall meter. This is a wall-measured figure — verified 2026-06-02.
Does the Minisforum UM690 support ECC memory?
Not confirmed — no cited source for ECC on the Minisforum UM690, so we leave it blank rather than guess.
Is the Minisforum UM690 good for Proxmox / a homelab?
~8–10 W idle with a solid Intel i225-V 2.5GbE makes a capable Proxmox node, but 680M iGPU passthrough is tricky (GRUB workaround) and hits the AMD reset bug needing vendor-reset. RAM ceiling: 64 GB (2× DDR5-4800 SODIMM). NIC: Intel I225-V 2.5GbE.
Sources
Minisforum UM690 Review An AMD Ryzen 9 6900HX Mini PC — ServeTheHome · dated 2023-03-05
https://www.servethehome.com/minisforum-um690-review-an-amd-ryzen-9-6900hx-mini-pc/4/
Minisforum Venus Series UM690 desktop review — Notebookcheck · dated 2023-02-03
https://www.notebookcheck.net/Minisforum-Venus-Series-UM690-desktop-review-small-office-PC-with-Ryzen-9-6900HX-and-USB4.689326.0.html
https://forum.proxmox.com/threads/have-anyone-susscesfully-passthroughed-the-igpu-amd-radeon-680m-to-vm.119178/
Working around the AMD GPU Reset bug on Proxmox using vendor-reset — Nicholas Sherlock · dated 2020-11-22
https://www.nicksherlock.com/2020/11/working-around-the-amd-gpu-reset-bug-on-proxmox/
Cited public information, not purchasing advice. Onboard NIC silicon and BIOS can differ between production batches of the same model name — confirm the revision you receive (
lspci -nn) before relying on a NIC or passthrough claim. Idle draw depends on OS, mains voltage (120 V vs 240 V) and power tuning (powertop).