Hardware

The short answer: Reuse a suitable computer before buying another one. Choose a compact mini PC when space and noise matter and you do not need many full VMs or internal drives. Compare an expandable used business PC when you need more VM headroom, several local drives, a PCIe card, or a flexible upgrade path. Check the exact model and configuration before buying; a chassis category alone cannot guarantee capacity, noise, or compatibility. ...

If you’re building a Proxmox home lab, you don’t necessarily need a large server. A modern Mini PC can give you a surprisingly capable Proxmox host in a small, quiet package. The difficult part is choosing one that makes sense for virtualization, rather than simply choosing the Mini PC with the fastest benchmark score. For Proxmox, we care about: CPU virtualization support RAM capacity and upgradeability NVMe storage Ethernet connectivity PCIe/IOMMU capabilities cooling under sustained workloads power consumption expansion options price In this guide, we’ll focus on the GMKtec K8 Plus and Beelink SER8, two Mini PCs that make particularly interesting Proxmox home-lab hosts. ...

Evidence note: This is a research-backed analysis of the GMKtec K8 Plus as a Proxmox host. It combines GMKtec’s system specifications , AMD’s Ryzen 7 8845HS specifications , Proxmox documentation, and attributable owner reports. It is not a first-hand RunAHomeLab hardware benchmark. Community reports identify possible failure modes but do not prove that every unit is affected. See the research methodology . Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. RunAHomeLab may receive a commission at no extra cost to you. Affiliate relationships do not change the evidence standard or recommendation status. ...

How this guide was built: this is a reference configuration based on current specifications, pricing, and reports from people running similar systems. It is not presented as a long-term benchmark of a machine we personally tested. After publishing the first version, we asked the r/homelab community what this build could realistically handle and where it would fail first. This update incorporates the useful patterns from that discussion while keeping individual reports clearly labeled as anecdotal. ...