Result Analysis and Discussion
Efficiency 115V
|
| Load |
Pin(W) |
Pout(W) |
Efficiency |
| 20 % |
158.83 |
143.69 |
90.47 % |
| 50 % |
391.40 |
357.06 |
91.23 % |
| 100 % |
805.8 |
706.22 |
87.64 % |
The 80Plus
Gold certification
requirements (87% - 90% - 87%) are surpassed especially at 20% Load. 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.
Output Stability |
| Load |
Rail |
Loading(A) |
Output(V) |
| 20 % |
5V |
3.30 |
5.05 |
| 3.3V |
3.27 |
3.32 |
| 12V |
11.54 |
12.10 |
| 5VSB |
1.00 |
5.08 |
|
|
| 50 % |
5V |
7.53 |
5.03 |
| 3.3V |
7.53 |
3.26 |
| 12V |
23.07 |
12.05 |
| 5VSB |
1.54 |
5.03 |
|
|
| 100 % |
5V |
15.05 |
4.92 |
| 3.3V |
15.01 |
3.21 |
| 12V |
50.01 |
11.94 |
| 5VSB |
3.00 |
4.96 |
The stability of the
output voltages and the outcome of the crossload tests (results not shown here)
are not perfect but still with margin within standards and absolutely
satisfactory (especially when you consider the topology used in this
PSU). Transient loads are a big issue for this topology. In modern PCs transient
load changes often occur. This can end in a output voltage not within the norm
for a short moment. This again can end up in system instabilities.
|
Noise |
| Load |
|
| 20 % |
Silent |
| 50 % |
Audible |
| 100 % |
Audible |
Noise level results are decent and mostly attributed to be quiet!'s choice to use its own high-quality thermally controlled 135mm fan with rifle bearing, but we would prefer that it is much less noisy under full load.
|
Noise/Ripplee |
| Voltage |
Noise/Ripple Vpp |
| 5V |
0.025 |
| 12V |
0.061 |
| -12V |
0.038 |
| 3.3V |
0.017 |
| +5VSB |
0.025 |
The noise values are within the ATX norm. This is a
perfect example for the quality difference between Japanese and non Japanese
capacitors. The filter performance is worse by
factors compared to high end PSUs using Japanese capacitors.
Seasonic Platinum Series SS-660XP2 Review 