Analyse
des résultats et discussion
Rendement 115V
|
| Charge |
Pin(W) |
Pout(W) |
PF |
Rendement |
| 20 % |
284.85 |
251.57 |
0.9869 |
88.32 % |
| 50 % |
697.55 |
629.91 |
0.9970 |
90.30 % |
| 100 % |
1433.5 |
1257.45 |
0.9981 |
87.72 % |
The 80Plus Gold
certification requirements (87% - 90% - 87%) 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 and 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%.
Stabilité
des tensions de sortie |
| Load |
Rail |
Loading(A) |
Output(V) |
| 20 % |
5V |
3.18 |
5.031 |
| 3.3V |
3.18 |
3.337 |
| 12V1 |
3.65 |
12.12 |
| 12V2 |
3.65 |
12.10 |
| 12V3 |
3.65 |
12.13 |
| 12V4 |
7.3 |
12.15 |
| 5VSB |
0.53 |
5.084 |
|
|
| 50 % |
5V |
7.96 |
5.03 |
| 3.3V |
7.96 |
3.333 |
| 12V1 |
9.16 |
12.11 |
| 12V2 |
9.16 |
12.08 |
| 12V3 |
9.16 |
12.14 |
| 12V4 |
18.32 |
12.10 |
| 5VSB |
1.32 |
5.041 |
|
|
| 100 % |
5V |
15.92 |
5.025 |
| 3.3V |
15.92 |
3.326 |
| 12V1 |
18.32 |
12.08 |
| 12V2 |
18.32 |
12.03 |
| 12V3 |
18.32 |
12.16 |
| 12V4 |
36.64 |
12.09 |
| 5VSB |
2.64 |
4.969 |
|
Nuisances
sonores |
| Charge |
|
| 20 % |
Inaudible |
| 50 % |
Silencieux |
| 100 % |
Audible |
The Voltage Regulation of this
PSU is very good. It makes use of a DC-DC topology. This means, that the
P1-1250-BEFX 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/Ripple |
| Tension |
Noise/Ripple Vpp |
| 5V |
0.0344 |
| 12V |
0.0308 |
| -12V |
0.0333 |
| 3.3V |
0.0228 |
| +5VSB |
0.0212 |
The
noise values are good. Only the 34mV at 5V are a bit high, but since the 5V
ripple performance drastically improves with just little less 5V load, we don't
judge this as a negative point.
EVGA SuperNOVA 1000 G2 PSU Review 