How To Check Psu Wattage Windows 11 May 2026

If you’re a Windows 11 user trying to diagnose random shutdowns, planning a GPU upgrade, or just satisfying your curiosity, one of the first things you might search for is: “How do I check my power supply wattage in Windows 11?”

Unlike your CPU, GPU, RAM, or storage drives, the power supply unit (PSU) does not communicate its wattage, efficiency rating, or even its brand through software. Windows 11 has no native tool, and no third-party app can reliably read PSU wattage because no industry-standard sensor or data channel exists for it. how to check psu wattage windows 11

Microsoft could potentially add a feature where OEMs and PSU manufacturers supply wattage info via SMBIOS or a new driver standard, but today, that doesn’t exist. For a modern operating system in 2024+, it’s a surprising blind spot. However, the workaround — opening the case — is simple and free. If you’re a Windows 11 user trying to

The short, frustrating answer is: