Power and Signal Distribution
7.3Power Distribution
The power supply assembly includes a
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| P3 |
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| P2 |
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| 5 4 3 2 1 |
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| 4 |
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| P3 | 6 |
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| P2 |
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| Power Supply |
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| 1 |
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| 3 |
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| P1 |
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| 403777 |
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| P1 |
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| 13 |
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| 24 | |||||||||||||
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| 1 |
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| Pin |
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| Pin |
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| Pin | ||||||||
Conn | Pin 1 | Pin 2 | Pin 3 | Pin 4 | Pin 5 | Pin 6 | Pin 7 |
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| Pin 8 |
| Pin 9 |
| 10 |
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| 11 |
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| 12 | |||||||||||||||||||||||||
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P1 | +5 | RTN | + 5 | +5 |
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| PS On | RTN | Pwr Gd |
| +3.3 |
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| +3.3 |
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| Tach |
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| RTN |
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| Fan | ||||||||||||||||||||||
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P1 [1] | +12 | +5 sns | RTN | +5 |
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| +5 | +3.3 | RTN |
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| +3.3 sns | +3.3 |
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| +3.3 |
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| RTN |
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P2 | +3.3 | RTN | +5 | RTN | +12 |
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P3 | RTN | RTN | RTN | VccP |
| VccP | +12 |
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NOTES:
Connectors not shown to scale. All + and – values are VDC. RTN = Return (signal ground) sns = sense
GND = Power ground RS = Remote sense FO = Fan off
FSpd = Fan speed FS = Fan Sink
FC = Fan Command Vccp = +12 VDC for CPU
[1] This row represents pins 13 – 24 of connector P1.
Figure
| www.hp.com | Technical Reference Guide |