diff --git a/guide/english/computer-hardware/power-supply/index.md b/guide/english/computer-hardware/power-supply/index.md
index 8ef9623e8c..5114f572f8 100644
--- a/guide/english/computer-hardware/power-supply/index.md
+++ b/guide/english/computer-hardware/power-supply/index.md
@@ -3,7 +3,7 @@ title: Power Supply
 ---
 ## Power Supply
 
-A Power Supply Unit (PSU) supplies power to a computer. It converts AC power into steady low-voltage DC power for the internal components. 
+A Power Supply Unit (PSU) supplies power to a computer. It converts AC power into steady low-voltage DC power for the internal components. A power supply is required in order for a computer to operate properly and it's wattage must be matched appropriately to all the components inside the computer.  
 
 
 A PSU is usually not user serviceable. For your safety, it is wise to never open a power supply unit.