Whats My Power Supply Page

If you bought a pre-built PC (like HP, Dell, or CyberPower), search for your specific model number on the manufacturer’s support website.

A 500W‑labeled unit was tested:

If you built the PC yourself, the box will clearly list the wattage, 80 Plus efficiency rating, and model number. Method 3: Estimating via Software whats my power supply

⚡ The Heart of the Rig: Do You Know Your PSU? ⚡ If you bought a pre-built PC (like HP,

Then compare with PSU’s rated current per rail. Leave 20% headroom on each rail. 80 Plus efficiency rating