Akasa PowerPax 400W

The most lightweight supply we looked at was the Akasa PowerPax 400W (number 5 in the image), a £36 unit that offers two independent +12V rails, rated at 13A and 14A.

In our tests, it achieved exactly 80.6% efficiency, a decent score, but the lowest in this esteemed company.

That power rating of 400W is a little on the low side these days, too, because some modern computers can draw that much even when idle, and running a power supply at full capacity reduces efficiency and reliability.

Under 100% load, the Akasa heated up to 38C, making it this month's warmest contender.

The one-year warranty is unusually short, too, but it's reasonably good value, costing less per watt than any of its rivals.

To read the reviews, click one of the links below:
Intro
Akasa PowerPax 400W
Enermax Modu82+ 525W
Gigabyte Odin GT 550W
Corsair HX 620W
Cooler Master Real Power M700 - Recommended
Seasonic X900
FSP Everest 1010
PC Power & Cooling Silencer 750W

Author: Darien Graham-Smith