Check Psu — |verified|

| Wire Color | Pin/Connector | Expected Voltage | Tolerance | |------------|---------------|------------------|-----------| | Yellow | +12V | 12.0V | ±5% (11.4–12.6V) | | Red | +5V | 5.0V | ±5% (4.75–5.25V) | | Orange | +3.3V | 3.3V | ±5% (3.14–3.47V) | | Purple | +5VSB (standby) | 5.0V | ±5% (always on when PSU plugged in) | | Blue | -12V | -12.0V | ±10% (-10.8 to -13.2V) |

Your Power Supply Unit (PSU) is the heart of your PC, pumping essential electricity to every component. When a PSU fails, it doesn't just stop your computer—it can potentially damage your motherboard, GPU, and storage drives. Learning how to health is a critical skill for both troubleshooting and preventative maintenance. 1. Physical and Visual Inspection check psu

If you are using 180° or 90° power adapters, always test them for wobbles or audible clicks, as poor contact can lead to voltage instability. 5. Fitment and Compatibility Checks | Wire Color | Pin/Connector | Expected Voltage

return round(reading, 2)

// Handle Alerts const alertBox = document.getElementById('alert-box'); if (data.alerts.length > 0) alertBox.style.display = 'block'; alertBox.innerHTML = "<strong>Alerts:</strong><br>• " + data.alerts.join("<br>• "); else alertBox.style.display = 'none'; Fitment and Compatibility Checks return round(reading, 2) //

This method "tricks" the PSU into turning on without being connected to a motherboard. Note that this only confirms if the unit can start, not if it can handle a full power load. PSU: How to test a PSU (Power Supply Unit) - Corsair