1. Why Is the Power Supply So Important?
Your PSU converts electricity from your wall outlet into power your components can use. A weak or unstable PSU can cause:
❌ Random crashes and reboots
❌ Inconsistent performance under load
❌ Risk of hardware failure due to power surges
2. How to Determine the Right Wattage for Your Build
Your PSU should provide enough wattage to support all your components. Here’s a rough guide:
💻 Basic office PC (300-400W) – Integrated graphics, low-power CPU
🎮 Mid-range gaming PC (500-700W) – Entry-level GPU, Ryzen 5 or i5 CPU
🚀 High-end gaming PC (750-1000W) – RTX 4080, Ryzen 9 or i9
💡 Overclocked or multi-GPU system (1000W+)
🔹 Tip: Use an online PSU calculator (e.g., OuterVision) to estimate power requirements.
3. Understanding PSU Efficiency Ratings (80 PLUS)
A higher efficiency rating means less wasted energy and lower heat output. Here are the common PSU efficiency levels:
✔ 80 PLUS White – Standard efficiency (~80%)
✔ 80 PLUS Bronze – Good budget choice (~82-85%)
✔ 80 PLUS Gold – Best balance of price and performance (~87-90%)
✔ 80 PLUS Platinum/Titanium – Ultra-efficient (~92-94%), best for professionals
4. Modular vs. Non-Modular Power Supplies
🔹 Non-Modular: Fixed cables, harder cable management, but cheaper
🔹 Semi-Modular: Some detachable cables, good balance
🔹 Fully Modular: All cables are detachable, making for cleaner builds
5. Key Features to Look for in a PSU
✔ Overvoltage & Short Circuit Protection – Prevents hardware damage
✔ Quality Japanese Capacitors – Ensures long-term reliability
✔ Strong 12V Rail – Stable power delivery for CPU and GPU