He built the PC with shaky, excited hands. It booted! Lights flashed! But the moment he launched his first game, the fans roared like jet engines. Then came a soft click … then a … then darkness .

Dejected, Alex visited his friend Jamie, a seasoned PC builder who ran a small repair shop. Jamie listened, then pushed a worn keyboard toward him.

Most cases support PSUs. However, if you are building in a smaller case (Micro-ATX or ITX), ensure your PSU is SFX or SFX-L form factor. Always check your case specifications before buying.

The calculator recommended for safety, headroom, and future upgrades. It also suggested an 80+ Bronze or Gold rating for efficiency and cleaner power delivery.