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Supermicro PWS-920P-SQ Leaflet

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80 PLUS Verification and Testing Report
 
TYPICAL EFFICIENCY (50% Load):
AVERAGE EFFICIENCY :
80 PLUS COMPLIANT:
YES
Units
Volts
Amps
Hz
Watts
Note: All measurements were taken with input voltage at 230 V nominal and 60 Hz.
Input AC Current Waveform (ITHD = 20.45%, 50% Load)
I
RMS
PF
A
0.52
0.88
25.34
*10%
Low
106
1.21
93
87.68%
0.92
0.94
22.67
20%
Light
200
1.21
185
92.51%
2.18
0.97
20.45
50%
Typical 
488
1.45
460
94.27%
4.35
0.99
15.98
100%
Full
987
5.93
917
92.98%
5Vsb
5.17/0.4
5.16/0.8
5.13/2
4.01/5.07
PWS-920P-SQ
1U
Input Frequency
10.7-4.2
Serial Number
94.27%
93.25%
SUPER MICRO COMPUTER INC.
2009
SO-104.1
Year
Ecos ID #
Type
Manufacturer
N/A
Model Number
50-60
Test Date 
11/14/2009
Rated Specifications
Input Voltage
Input Current
I
THD
 (%)
Input 
Watts
Fraction 
of Load
* 10% load results are for informative purposes only and not included in certification requirements.
** Fan power is not included in the efficiency calculations
12.05/7.53
12.03/15.03
11.99/37.53
11.96/75.03
Efficiency %
Output 
Watts
Rated Output Power
Value
100-240
Load 
(%)
External 
Fan (W)**
12V
DC Terminal Voltage (V)/ DC Load Current (A)
920
1000
1200
Input and Output Power
90%
100%
Efficiency of the Power Supply
-8
-6
-4
-2
0
2
4
6
8
-400
-300
-200
-100
0
100
200
300
400
0
0.003
0.006
0.009
0.012
0.015
C
u
rre
n
t (A)
V
o
lt
age (
V
)
Time (s)
Input Current and Voltage Waveforms
Voltage 
Current 
Input Watts
Output Watts
0
200
400
600
800
1000
1200
20%
50%
100%
Po
w
e
r (W
a
tts
)
Loading (% of Rated Output Power)
Input and Output Power
30%
40%
50%
60%
70%
80%
90%
100%
0%
25%
50%
75%
100%
125%
E
ff
ici
en
cy (
%
)
Loading (% of Rated Output Power)
Efficiency of the Power Supply
Efficiency %
-8
-6
-4
-2
0
2
4
6
8
-400
-300
-200
-100
0
100
200
300
400
0
0.003
0.006
0.009
0.012
0.015
C
u
rre
n
t (A)
V
o
lt
age (
V
)
Time (s)
Input Current and Voltage Waveforms
Voltage 
Current 
These tests were conducted by a third party independent testing firm on 
behalf of the 80 PLUS
®
Program. 80 PLUS is a certification program to 
promote highly-efficient power supplies (greater than 80% efficiency in the 
active mode) in technology applications. 
http://www.80plus.org/