1. What is a Power Supply Calculator?

Definition: This calculator estimates the recommended power supply wattage based on your PC components' power consumption.

Purpose: It helps PC builders and upgraders determine the appropriate power supply unit (PSU) for their system configuration.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{supply} \) — Recommended power supply wattage
• \( P_{component} \) — Power consumption of each component
• 1.2 — 20% overhead for efficiency and future upgrades

Explanation: The calculator sums all component power requirements and adds a 20% buffer to ensure stable operation and headroom for upgrades.

3. Importance of Proper Power Supply Calculation

Details: An adequately sized PSU ensures system stability, prevents crashes, improves efficiency, and allows for future component upgrades.

4. Using the Calculator

Tips: Enter the wattage for each component. Typical values:

• CPU: 65W-125W (check your processor specifications)
• GPU: 75W-350W (check your graphics card specifications)
• RAM: 5W-10W per stick
• Storage: 5W-10W per drive

5. Frequently Asked Questions (FAQ)

Q1: Why is there a 20% overhead?
A: The 20% buffer accounts for power spikes, ensures PSU operates in its most efficient range, and provides room for future upgrades.

Q2: What if I plan to overclock?
A: Add 10-20% more to your calculated wattage if you plan to overclock your CPU or GPU.

Q3: How do I find my components' power consumption?
A: Check manufacturer specifications or use online databases like Outervision's detailed calculator.

Q4: Does this include RGB lighting and cooling?
A: Basic cooling is included in the "Other" field. For extensive RGB setups, add 5-10W per RGB component.

Q5: Should I round up to the nearest PSU wattage?
A: Yes, always round up to the nearest available PSU wattage (e.g., if you get 487W, choose a 500W or 550W PSU).