Seasonic Prime Titanium 750W Review

Published by Marc Büchel on 18.04.17
Page:
« 1 2 3 4 (5) 6 »

Result Analysis and Discussion


Efficiency

Load Pin(W) Pout(W) Efficiency
10 % 83.44 76.52 91.71 %
20 % 163.53 153.48 93.85 %
50 % 407.60 385.56 94.59 %
100 % 834.00 774.67 92.89 %


The 80Plus Titanium certification requirements (90% - 92% - 94% - 90%) are surpassed especially at 20% Load. The full Load efficiency is a bit higher at 230V AC. This is the case with most of todays PSU's an it mainly originates from the reason of lower losses in the AC filtering stage and the PFC at 230V AC. The 230V AC 100% Load efficiency is 90.68%.

Output Stability

Load Rail Loading(A) Output(V)
10 % 3.3V 1.05 3.37
5V 1.05 5.03
12V 5.39 12.25
 
20 % 3.3V 2.10 3.36
5V 2.09 5.02
12V 10.81 12.27
 
50 % 3.3V 5.24 3.35
5V 5.20 5.02
12V 27.07 12.34
 
100 % 3.3V 10.46 3.40
5V 10.40 5.00
12V 53.97 12.44


The Voltage Regulation of this PSU is very good. It makes use of a DC-DC topology. This means, that the Seasonic Prime Titantium 750W is mainly a 12V PSU and then generates its 5 and 3.3V from 12V. This is a modern approach, and since the Load is mainly on 12V it makes a lot of sense. For almost any PSU which makes use of this topology crossload tests do not present a problem.

Noise
Load  
10 % Noiseless
20 % Noiseless
50 % Noiseless
100 % silent


If we listen closer with the power supply, there is no noise until 50%. The Seasonic Prime Titantium 750W is a semi passive power supply and the fan kicks in, when 50 percent load is being surpassed. Even at 100% load the unit can still be described as silent.

Page 1 - Introduction
Page 2 - Preview
Page 3 - Delivery / Specs
Page 4 - A Look Inside
Page 5 - Result Analysis and Discussion
Page 6 - Conclusion




comments powered by Disqus

Seasonic Prime Titanium 750W Review - PSUs - Reviews - ocaholic