Energy Star Compliancy - HP Compaq dc7800 Series Technical Reference Manual

Figure 7-5 shows the power supply cabling for CMT systems.
Power Supply
Unit
Conn Pin 1
P1 +3.3
P1 [1] +3.3
P3 RTN
P4, 5, 9, +3.3
10, 1 1
P6 +12
P8 +5
NOTES:
Connectors not shown to scale.
All + and - values are VDC.
RTN = Return (signal ground)
GND = Power ground
RS = Remote sense
POK = Power ok (power good)
FC = Fan Command
[1] This row represents pins 13–24 of connector P1.
Figure 7-5. CMT Power Cable Diagram

7.2.4 Energy Star Compliancy

The standard power supply unit for SFF and CMT systems is Energy Star 3.0-compliant. An
Energy Star 4.0 (80 Plus-compliant) power supply unit is used for the SFF and CMT form factors
in select configurations. The standard USDT power supply unit is compliant with the Energy Star
4.0 specification.
Technical Reference Guide
P9
P6
Pin 2 Pin 3 Pin 4 Pin 5
+3.3 RTN +5 RTN
- 1 2 RTN PS On RTN
RTN VccP VccP
RTN +5.08 RTN +12
RTN RTN +5
RTN RTN +12
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P10 P11
P8
P4 P5
4
P3
1 2 3 4
P1
13
1
Pin 6 Pin 7 Pin 8
+5 RTN POK
RTN RTN Open
Power and Signal Distribution
P4, P5, P9, P10, P11
5 4
3 2 1
P8
P3
3 2 1
2
4
P6
3
1
P1
24
12
Pin Pin
Pin 9 10 1 1
5 aux +12 +12
+5 +5 +5
Pin
12
+3.3
RTN
7-5