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Internal/external power supply efficiency:
PSU 1:
Table 2. Power supply efficiency (PSU 1)
IRMS A
PF
0.41
0.811
0.72
0.901
1.65
0.956
3.28
0.976
PSU 2:
Table 3. Power supply efficiency (PSU 2)
IRMS A
PF
0.50
0.694
0.74
0.867
1.63
0.968
3.24
0.988
Maximum power (watts):
See
Power
supply.
Idle state power (watts):
129
Sleep mode power (watts):
N/A for servers
Off mode power (watts):
Not available
Noise levels (the declared A-weighed sound power level of the computer):
See
Acoustical noise
Test voltage and frequency:
230V / 50 Hz or 60 Hz
Total harmonic distortion of the electricity supply system:
The maximum harmonic content of the input voltage waveform will be equal or less than 2%. The
qualification is compliant with EN 61000-3-2.
Information and documentation on the instrumentation set-up and circuits used for electrical testing:
ENERGY STAR Test Method for Computer Servers; ECOVA Generalized Test Protocol for Calculating
the Energy Efficiency of Internal Ac-Dc and Dc-Dc Power Supplies.
Measurement methodology used to determine information in this document:
ENERGY STAR Servers Version 2.0 Program Requirements; ECOVA Generalized Test Protocol for
Calculating the Energy Efficiency of Internal Ac-Dc and Dc-Dc Power Supplies.
Server controls, LEDs, and power
This section describes the controls and light-emitting diodes (LEDs) and how to turn the server on and off.
ITHD (%)
39.8%
30.5%
21.8%
17.5%
ITHD (%)
19.02%
15.1%
4.85%
5.3%
emissions.
Load (%)
Input Watts
10%
77.25
20%
148.45
50%
361.99
100%
736.58
Load (%)
Input Watts
10%
79.4
20%
148.4
50%
362.1
100%
737.3
.
Chapter 2
Output
Efficiency %
Watts
67.50
87.38%
134.74
90.76%
336.34
92.91%
670.10
90.97%
Output
Efficiency %
Watts
68.2
85.9%
134.8
90.8%
336.1
93.0%
672.3
91.2%
The Lenovo System x3550 M3 server
9
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