be quiet! Pure Power 9 700W Review

Publié par Marc Büchel le 22.03.16
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Analyse des résultats et discussion


Rendement 115V

Charge Pin(W) Pout(W) Rendement
20 % 166.54 143.03 90.16 %
50 % 407.5 354.85 90.46 %
100 % 837.4 703.82 86.14 %


The 80Plus Bronze certification requirements (85% - 88% - 85%) are surpassed especially at 20% load. This is the case with most of PSU's that you can buy today and it mainly originates from the reason of lower losses in the AC filtering stage and the PFC at 230V AC.

Stabilité des tensions de sortie

Load Rail Loading(A) Output(V)
20 % 5V 2.72 5.07
3.3V 3.42 3.29
12V 9.34 12.18
 
50 % 5V 6.79 5.00
3.3V 8.55 3.26
12V 23.4 12.05
 
100 % 5V 13.56 5.02
3.3V 17.00 3.25
12V 46.68 11.86


The stability of the output voltages and the outcome of the crossload tests (results not shown here) are not perfect but still within the margin and the norms, so they are 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 that is not within the norm for a short moment. This again can end up in system instabilities.

Nuisances sonores
Charge  
20 % Silencieux
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 120mm fan with rifle bearing.

Noise/Ripple
Tension Noise/Ripple Vpp
5V 0.022
12V 0.021
3.3V 0.020



Page 1 - Présentation
Page 2 - Galerie Photo
Page 3 - Bundle / Spécifications
Page 4 - À l'intérieur
Page 5 - Puissance d'entré/sortie et rendement
Page 6 - Analyse des résultats et discussion
Page 7 - Conclusion




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