Author: Colin Dean
Installation and Use
There was nothing remarkable about the installation. It was standard. The unit isn’t larger or smaller than the standard PSU.
We benchmarked the Evo Blue 750W in a newer system after another PSU fried the motherboard and processor in my standard testing rig. This newer system has a ASUS P6T Deluxe motherboard with a Intel Core i7 965 @ 3.2 ghz, 12 GB DDR3 memory, ATI Radeon 4870 x2, two 256gb ssds, two 1TB SATA drives, and a Blu-ray drive in a case with a pair of fans.
At idle, the Evo Blue pulled 3.23V, 5.09V, 12.04V on the 3.3V, 5V, and 12V rails, respectively, and pulled around 3.2V, 5.04V, 11.93V at load.
We used OCCT Perestroika to do load testing. Here are the output graphs comparing the voltages of the Evo Blue 750 with my trusty Antec Truepower 1000W, the PSU I know the best. The Evo Blue results are on the left and the Truepower 1000W results are on the right.
The 3.3V rail was consistently undervolted, but within the +- 5% range. The ripple was much smaller – .93% – and the voltage was virtually stable under stress.
The 5V rail was very steady under load and the variation was within our +- 5% range. The ripple was 1.37%, but the voltage was largely consistent under stress.
The 12V rail had a varying draw. Under stress, the voltage stayed between 11.93 and 11.98 volts, rippling 1.4%. The undervolting is cause for concern, but the amount of undervolting was within our +-5% range.
The Antec Truepower 1000W held its own throughout the tests. There’s a lot of power being pulled from the 3.3V rail, so it’s no surprise that even a sturdy four year old power supply falters a little. It’s not surprising that the immense amount of power required by this system made this power supply groan along the way.
The noise level was fine. The PSU is barely audible.