Specs & Power Consumption: Minisforum UM890 Pro
Verified data AMD Ryzen 9 8945HS
Minisforum UM890 Pro (Ryzen 9 8945HS): 11W idle and 67W under load (measured), 2x 2.5GbE, up to 96 GB RAM. VESA mount behind your monitor.
Technical specifications
| Brand | Minisforum |
|---|---|
| Model | UM890 Pro |
| CPU | AMD Ryzen 9 8945HS |
| Max RAM | 96 GB [source] |
| Network ports | 2x 2.5GbE [source] |
| Dimensions | 130 × 127 × 61 mm [source] |
| VESA mount | Yes [source] |
Power consumption & electricity cost
Idle [source]11 W
Under load [source]67 W
Estimated 24/7 average22.2 W
Yearly cost (€0.25/kWh)48.62 €
Average based on 80% of the time at idle and 20% under load, running 24/7: 194 kWh/year. Adjust the inputs to match your usage:
Energy: 194 kWh/year · Cost: 48.62 €/year
(4.05 €/month)
Mounting & usage guide
Mounting
- Footprint 130 × 127 mm, 61 mm tall (about 1.01 litres).
- Supports VESA mounting (75/100 mm bracket): attach it behind your monitor or under the desk to free up space. Keep the front USB ports and power button reachable.
- When VESA-mounted, keep the vents clear: leave at least 1-2 cm between the case and the monitor.
Cooling & heat
- Under load it reaches about 67 W and the fan becomes audible. For an always-on server, lower the power limit (TDP) in the BIOS to cut heat and noise.
- Clean dust from the vents every 6-12 months to keep temperatures and power draw low.
Recommended use cases
- Virtualised router (OPNsense VM on Proxmox) using the 2x 2.5GbE.
- Proxmox VE with several VMs and LXC containers: up to 96 GB RAM.
- Heavy office work, light photo/video editing and intensive multitasking.
Check price & availability
See the current price and available configurations for Minisforum UM890 Pro.
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Data sources
- Idle power: 11 W — notebookcheck.net (measured review, checked on 2026-11-06)
- Load power: 67 W — notebookcheck.net (measured review, checked on 2026-11-06)
- Dimensions: 130 × 127 × 61 mm — notebookcheck.net (measured review, checked on 2026-11-06)
- VESA support: Yes — notebookcheck.net (measured review, checked on 2026-11-06)
- Max RAM: 96 GB — minisforum.com (official source, checked on 2026-11-06)
- Network ports: 2x 2.5GbE — minisforum.com (official source, checked on 2026-11-06)
Real-world power draw varies with OS, RAM, drives, peripherals and BIOS settings.