8.212 bytes |
Service Hints & Tips |
Document ID: DDSE-3QNJA6 |
PCServer704 - Power Supply to Power Distribution Board Interface
Applicable to: World-Wide
Specifications (Power Supply to Power Distribution Board Interface)
Table1:
DC Power Connectors from Power Supply to J9A, J9B, J9C on Backplane
Pin Position Description |
1,6 Ground 7 +3.3 Vdc 8 +12 Vdc 10 -5 Vdc 13, 17 Ground 20, 21 +12 Vdc 22, 24 +5.1 Vdc |
Table2:
Power Control and Status Signals from Supply to J8A, J8B, J8C on Backplane
Pin Position Description |
1 +5.1 Vdc remote sense (+) 2 + 12 Vdc remote sense (+) 3 +3.3 Vdc remote sense (+) 5 +5 Vdc load share 7 +3.3 Vdc load share 8 PON 10 +5 V standby 12 Ground 13 Power-Good 14, 15 Not connected |
Table3:
Power Backplane (J6 and J7), Power to System Board
J9 and J10 have identical pinouts, and their connection to the baseboard is interchangeable.
Pin Position Signal |
1 +5V 2 Ground 4 Ground 6 Ground 8 Ground 9 +5V 11 +12V 13 +12V 15 +3.3V 16 Ground 18 Ground 20 Ground |
Table4:
Power Backplane (J11), Power Control Signal to System Board
Pin Position Signal |
1 -12 Vdc 3 Power-on 4 I2 C_SDA 5 I2 C_SCL 6 +5V remote sense (+) 8 +5V standby 10 Power-good 12 I2 C_PRES 13 +3.3V remote sense (+) |
Table5:
Power Backplane (J1, J2), to SCSI Drive Backplane (J10)
Pin Position Description |
1,3 +12 Vdc 4,9 Ground |
Power Backplane, I2 C Input Definitions
The power supply backplane has a single I2 C device to detect status and presence from each power supply. The device is connected through the power control signal connectors J11 and J10 to the I2 C circuit on the system board and the SCSI hard drive backplane. The address of the device is 44h.
Table6:
Power Backplane (J3, J4, J5), Power to System Peripherals
Pin Position Description |
1 +12 Vdc 4 +5.1 Vdc |
Table7:
Power Backplane Fan Connections (J12, J13)
Pin Position Description |
1 Ground 3 Fan fail |
Table8:
Specifications (Power Supply)
Description Specification |
DC power +3.5 V @ 15 A AC line voltage 100-120 V ac 200-240 V ac |
Table9:
Current Sharing Maximum Output per Voltage
Number of +3.3V +5V +12V -5V -12V |
1 15A 32A 16A 0.25A 1A |
Search Keywords |
| |
Hint Category |
Hardware Maintenance Information, Power | |
Date Created |
11-06-96 | |
Last Updated |
01-06-98 | |
Revision Date |
30-05-99 | |
Brand |
IBM PC Server | |
Product Family |
PC Server 704 | |
Machine Type |
8650 | |
Model |
| |
TypeModel |
| |
Retain Tip (if applicable) |
| |
Reverse Doclinks |