Lenovo ThinkCentre M900 Tiny
Measured idle power
11–13 W idle (120 V, quad-core). A Fedora + powertop --auto-tune test on 240 V hit ~6.1–7 W.
Wall meter (ServeTheHome 120 V); independent Linux/powertop test on 240 V
Source: Lenovo ThinkCentre M900 Tiny TinyMiniMicro guide — ServeTheHome · dated 2021
ECC memory support
No (Q170 chipset, non-ECC)
Source: Lenovo ThinkCentre M900 Tiny as a home server — techtipsy · dated 2025-06-06
NIC chipset
1× 1GbE Intel I219
Source: Lenovo ThinkCentre M900 Tiny as a home server — techtipsy · dated 2025-06-06
RAM ceiling
32 GB (2× DDR4 SODIMM)
Source: Lenovo ThinkCentre M900 Tiny TinyMiniMicro guide — ServeTheHome · dated 2021
IOMMU / GPU passthrough
No community passthrough report sourced yet for this model.
Where to buy
Deterministic search links for “Lenovo ThinkCentre M900 Tiny” — 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 Lenovo ThinkCentre M900 Tiny's idle power consumption?
Lenovo ThinkCentre M900 Tiny (Intel Core i5-6500T (6th gen, quad-core)) idles at 11–13 W idle (120 V, quad-core). A Fedora + powertop --auto-tune test on 240 V hit ~6.1–7 W.. Method: Wall meter (ServeTheHome 120 V); independent Linux/powertop test on 240 V. This is a wall-measured figure — verified 2026-06-02.
Does the Lenovo ThinkCentre M900 Tiny support ECC memory?
No (Q170 chipset, non-ECC)
Is the Lenovo ThinkCentre M900 Tiny good for Proxmox / a homelab?
Cheap, rock-solid Intel I219 NIC, dead-simple Proxmox. 6th-gen and 32 GB cap are the limits. RAM ceiling: 32 GB (2× DDR4 SODIMM). NIC: 1× 1GbE Intel I219.
Sources
https://www.servethehome.com/lenovo-thinkcentre-m900-tiny-project-tinyminimicro-guide/3/
Lenovo ThinkCentre M900 Tiny as a home server — techtipsy · dated 2025-06-06
https://ounapuu.ee/posts/2025/06/06/thinkcentre-m900-tiny/
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).