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Intel® Server System M70KLP Family Technical Product Specification
10.3.3.1
Efficiency
Efficiency shall be tested at AC input voltages of 230VAC/50 Hz as defined by 80 PLUS® standards.
Table 16. 2000W Power Supply Efficiency Data (80-Plus Platinum)
Input Voltage
230VAC
270Vdc
Note:
Fan loading is not included.
Efficiency to be measured at 20~25 degree C ambient after power supply unit has run for 20 minutes.
10.3.3.2
Protection Circuits
Designed into the power supply are several protection circuits that will cause the main DC power output of
the power supply to shut down should a given fault condition occur. Stand-by power and the I
communications bus will continue to operate under a +12VDC fault protection condition. When a protection
circuit shuts down the +12VDC output, the green status LED on the back panel of the power supply shall
change to an Amber status.
Embedded protection circuits include:
•
Current Limit
•
Over Voltage / Under Voltage Protection
•
Over Temperature Protection
10.4 Auxiliary 12-Volt Power
Each of the two riser card slots on the server board can supply a maximum of 100W power. When a riser
card is installed, the 100W is split to support all add-in slots of the riser, with a single add-in slot maximum
of 75W. For GPU, or other high-power add-in cards, that require >75W of power to operate, additional 12-
Volt Auxiliary power must be cabled to the card. In the Intel® Server System M70KLP, additional AUX 12-Volt
power for add-in cards can be drawn from two 8-pin (Black 2x4) AUX power connectors on a power
distribution board found mounted to the power supply bay.
Power Distribution Board
10% load
88%
87%
12-Volt AUX Power
Connectors
Figure 72. AUX 12-Volt Power Connectors
DC Output Load
20% load
50% load
94%
94%
93%
93%
100% load
91%
90%
2
C
70
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