Use and Stress Testing
I used OCCT Perestroika in conjunction with Everest for benchmarking and monitoring on Windows 7 64-bit after installing into my standard testing rig with an ASUS M3A32-MVP motherboard, Athlon X2 6000+, 8 GB of DDR2 RAM, three SATA hard drives, a Kingston V-Series 128 GB SDD, a Killer 2100 Gaming NIC, and a Foxconn-made nVidia 8800 GTX inside a Cooler Master Cosmos S case.
Spot checks put the 3.3V, 5V, and 12V rails at 3.26V, 4.92V, 12.97V idle and 3.26V, 4.92V, 12.97V under load. Stability!
I’ve included comparison graphs from the Cooler Master Silent Pro Gold 1200W PSU review I did a while ago. The Zalman graphs are on the left, CM on the right.
The 3.3V rail had some rippling instability (0.91%) at the beginning of the test, but remained solid throughout the remainder of the test.
The 5V rail was a little more wild, but not by much. For the most part, it stuck to the idle and load spot check voltage of 4.92V.
The 12V rails were solid at 11.97V. This system is admittedly not putting a whole lot of strain on the 12V rails, so any significant instability would be alarming.
The noise level was unnoticeable.