Silverstone Zeus 1350 W Review

Name: Silverstone Zeus 1350 W
Brand: SilverStone

crmaris

on Nov 20th, 2012,

in Power Supplies.

Manufacturer: SilverStone

Performance Rating & Performance per Dollar »

Ripple Measurements

You will see the ripple levels that we measured on the main rails of the ZM1350 in the following table. The limits are, according to the ATX specification, 120 mV (+12V) and 50 mV (5V, 3.3V, and 5VSB).

Ripple Measurements Silverstone ZM1350
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	7.7 mV	6.7 mV	5.4 mV	6.0 mV	Pass
40% Load	10.0 mV	9.3 mV	7.5 mV	9.3 mV	Pass
50% Load	11.5 mV	10.7 mV	9.1 mV	11.4 mV	Pass
60% Load	12.7 mV	11.9 mV	9.8 mV	12.8 mV	Pass
80% Load	11.5 mV	14.0 mV	12.6 mV	14.4 mV	Pass
100% Load	15.3 mV	16.7 mV	14.5 mV	18.3 mV	Pass
110% Load	19.1 mV	17.7 mV	15.4 mV	19.7 mV	Pass
Crossload 1	6.2 mV	7.0 mV	5.9 mV	5.3 mV	Pass
Crossload 2	14.1 mV	14.8 mV	13.7 mV	16.9 mV	Pass

Ripple suppression is excellent on all rails. Especially the +12V rail registered an amazing performance, and its overload ripple test never eclipsed 20 mV. This is something you don't see every day, especially in a PSU of such high capacity.

We also ran a couple extra tests at a much higher ambient close to 50°C. We noticed that full load and overload tests, after we had dialed a full load at 5VSB, yielded a launching ripple of over 110 mV, but we were unable to reproduce this problem in any of our standard 45-47°C ambient tests. We chose not to include this high ripple reading in our final results since we only put our PSUs through the standard ambient tests. However, we informed Silverstone, although a 4 A load at 5VSB during full load and at near 50°C ambient is very unlikely; you really have a better chance of winning the lottery.

Ripple at Full Load

In the following oscilloscope screenshots, you can see the AC ripple and noise that the main rails registered (+12V, 5V, 3.3V, and 5VSB). The bigger the fluctuations on the oscilloscope's screen, the bigger the ripple/noise. For all measurements, we set 0.01 V/Div (each vertical division/box equals to 0.01 V) as standard.