Specs & Power Consumption: Minisforum UM790 Pro
Verified data AMD Ryzen 9 7940HS
Minisforum UM790 Pro (Ryzen 9 7940HS): 6W idle and 73W under load (measured), 1x 2.5GbE, up to 64 GB RAM. VESA mount behind your monitor.
Technical specifications
| Brand | Minisforum |
|---|---|
| Model | UM790 Pro |
| CPU | AMD Ryzen 9 7940HS |
| Max RAM | 64 GB [source] |
| Network ports | 1x 2.5GbE [source] |
| Dimensions | 130 × 126 × 52 mm [source] |
| VESA mount | Yes [source] |
Power consumption & electricity cost
Idle [source]6 W
Under load [source]73 W
Estimated 24/7 average19.4 W
Yearly cost (€0.25/kWh)42.49 €
Average based on 80% of the time at idle and 20% under load, running 24/7: 170 kWh/year. Adjust the inputs to match your usage:
Energy: 170 kWh/year · Cost: 42.49 €/year
(3.54 €/month)
Mounting & usage guide
Mounting
- Footprint 130 × 126 mm, 52 mm tall (about 0.85 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 73 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
- Always-on Home Assistant: at about 6 W idle it is cheap to run 24/7.
- Proxmox VE with several VMs and LXC containers: up to 64 GB RAM.
- Heavy office work, light photo/video editing and intensive multitasking.
Check price & availability
See the current price and available configurations for Minisforum UM790 Pro.
Check Price & Availability on AmazonAffiliate link: if you buy, we may earn a commission at no extra cost to you. Affiliate disclosure
Data sources
- Idle power: 6 W — notebookcheck.net (measured review, checked on 2026-11-06)
- Load power: 73 W — notebookcheck.net (measured review, checked on 2026-11-06)
- Dimensions: 130 × 126 × 52 mm — store.minisforum.com (official source, checked on 2026-11-06)
- VESA support: Yes — notebookcheck.net (measured review, checked on 2026-11-06)
- Max RAM: 64 GB — store.minisforum.com (official source, checked on 2026-11-06)
- Network ports: 1x 2.5GbE — store.minisforum.com (official source, checked on 2026-11-06)
Real-world power draw varies with OS, RAM, drives, peripherals and BIOS settings.