Proxmox server idle power cut from 68W to 34W
An AM4 desktop-based Proxmox server used about 68W while sitting idle. After changing several BIOS power and settings, it dropped to about 34W even with running. The setup aims to reduce power use while the server is quiet, without lowering peak .
A PBO curve optimizer change also gave a small boost to the Geekbench all-core score. The changed settings include enabling SR-IOV, ASPM, Global C-state Control, Low Current Idle, IOMMU, CPPC, and CPPC Preferred Cores, plus switching Boost Overdrive to advanced mode. In Proxmox, every needs an agent installed so C-state information can be shared properly.
Turning off the Wi-Fi may save another 2 to 4W.
Key points
- fell from about 68W to about 34W.
- The lower power use held even while were running.
- Several BIOS settings for power saving, , and CPU sleep states were enabled.
- Each Proxmox needs an agent so C-state information works properly.
- Disabling Wi-Fi may save another 2 to 4W.