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Topic starter 02/08/2025 11:55 pm
The power supply unit (or PSU) in a computer is the heart of your system’s power—it takes electricity from the wall and transforms it into the right type of energy your components need to run smoothly.
⚡ What Does a Power Supply Do?
- Converts Power: It changes high-voltage AC electricity (from the wall) into low-voltage DC electricity used by the computer’s parts.
- Distributes Electricity: Sends appropriate amounts of power to the CPU, GPU, hard drives, motherboard, fans, and more.
- Regulates Voltage: Keeps things stable so components don’t get too much or too little power.
- Protects the System: Many PSUs have safeguards against power surges, overheating, and short circuits.
🧱 Key Specs to Know
| Spec | Meaning |
|---|---|
| Wattage | Total power it can deliver (e.g., 650W, 750W) |
| Efficiency Rating | Shows how effectively it converts power (80 Plus Bronze, Gold, etc.) |
| Modular Design | Lets you plug in only the cables you need—great for tidier setups |
| Connectors | Different plugs for CPU, GPU, SATA drives, etc. |
🔧 Why It Matters
Imagine your PSU as the power grid for a city. If it doesn’t deliver stable, reliable electricity, things can go haywire. A weak or low-quality PSU can cause crashes, overheating, or even damage your gear.
