Spire BlackDragon 400W Power Supply Review

Testing
The following system was used for testing:

To test the power supply we ran OCCT’s PSU test for a 30 minute interval, running at fullscreen (1920×1200). Here are the results:

3.3V

Spire BlackDragon 400W Power Supply

5V

Spire BlackDragon 400W Power Supply

12V

Spire BlackDragon 400W Power Supply

The 3.3V was the most stable at only 0.05 ripple (1.42%), followed closely by the 5V with a 0.10 ripple (1.88%) and then even more with the 12V which had a 0.45 ripple (3.40%). These ripples aren’t that bad, considering some of the recent power supplies we’ve reviewed.