Result Analysis and Discussion
Efficiency 115V
|
Load |
Pin(W) |
Pout(W) |
Efficiency |
10 % |
65.18 |
77.23 |
85.76 % |
20 % |
131.44 |
146.84 |
89.51 % |
50 % |
325 |
355.03 |
90.89 % |
100 % |
650 |
732.36 |
87.66 % |
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]t] |
Load |
Rail |
Loading(A) |
Output(V) |
20 % |
5V |
6.30 |
5.02 |
3.3V |
6.30 |
3.29 |
12V |
8.75 |
12.15 |
5VSB |
0.50 |
5.02 |
|
50 % |
5V |
5.00 |
4.98 |
3.3V |
5.00 |
3.27 |
12V |
21.85 |
12.10 |
5VSB |
1.21 |
4.97 |
|
100 % |
5V |
12.68 |
4.91 |
3.3V |
12.68 |
3.23 |
12V |
57.00 |
12.03 |
5VSB |
2.43 |
4.90 |
Noise |
Load |
|
20 % |
Noiseless |
50 % |
Noiseless |
100 % |
Silent |
The Voltage Regulation of
this PSU is very good. It makes use of a DC-DC topology. This means, that the
RM650 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.