If you bought your PC or PSU online, your order history on sites like Amazon or Newegg will list the exact model and wattage.
| DC Output | +3.3V | +5V | +12V | -12V | +5Vsb | | |-----------|-------|-----|------|------|-------|-----------------| | Max Current | 22A | 18A | 54A | 0.5A | 3A | 650W | how do i check my psu wattage
If you cannot open the case (warranty, laptop, or pre-built restrictions): If you bought your PC or PSU online,
For laptops, the wattage is printed directly on the underside of the charging "brick". 3. Estimate Your Needs with a Calculator or pre-built restrictions): For laptops
: For safety, power down your PC and remove the power cord before opening the case.
If you don't want to open the case, you can often find the specs digitally: