There’s no software-only method in Windows to read PSU wattage. You must physically check the PSU label or your purchase records.
Remove the side panel of the case (usually requires a screwdriver).
While software cannot tell you the PSU's capacity , it can monitor the of your main components. How to Check Your Power Supply on a Windows PC how to see psu wattage in windows
However, here are the to find your PSU wattage:
If you bought your PC or PSU online, check your order history on sites like Amazon or Newegg. There’s no software-only method in Windows to read
Note: This only works if the manufacturer specifically programmed the motherboard to read that data.
While Windows can't see the PSU's limit, it can see how much power individual components like your CPU and GPU are using. While software cannot tell you the PSU's capacity
The only guaranteed way to find the exact wattage is to open your PC case and look at the sticker on the side of the PSU. It will list the brand, model, and total wattage.
