Performance

According to the UL Certification number E198072 this PSU is made by Zalman.



Tested on: AMD Athlon64 FX-62 @ 2800 MHz, ABIT AT8, 2x 512 MB DDR400, WD Raptor 36 GB, Radeon X1900 XTX + Radeon X1900 XTX Crossfire
Voltage stability is fine (as expected from a PSU this class). When running in CrossFire mode the voltages drop a little bit more but nothing to worry about.


The ripple voltage was measured on the 12V line at idle. With an amplitude of 17 mV it is about average.


Standard deviation is a statistical term, which tells how far away from the average the measurements are. In other words it's the average of the average.
A large standard deviation indicates that the data points are far from the average and a small standard deviation indicates that they are close within the average.


Zalman did a great job engineering this power supply for high efficiency. With almost 81% it definitely deserves to claim "80 Plus".