Power Supply Specification Guidelines; Power Supply Dc Output Connector; Table 50. Power Supply Dc Power Output Connector Pinout - Penguin Computing Relion 1900e Technical Manual

13. Power Supply Specification Guidelines

This section provides power supply specification guidelines recommended for providing the specified server
platform with stable operating power requirements.
Note: The power supply data provided in this section is for reference purposes only. It reflects Intel's own DC
power out requirements for a 750W power supply as used in an Intel designed 2U server platform. The
intent of this section is to provide customers with a guide to assist in defining and/or selecting a power
supply for custom server platform designs that utilize the server board detailed in this document.

13.1 Power Supply DC Output Connector

The server board includes two main power slot connectors allowing for power supplies to attach directly to
the server board. Power supplies must utilize a card edge output connection for power and signal that is
compatible with a 2x25 Power Card Edge connector (equivalent to 2x25 pin configuration of the FCI power
card connector 10035388-102LF).
Revision 1.0
Relion 1900e/2900e Manual

Table 50. Power Supply DC Power Output Connector Pinout

Pin Name
A1 GND
A2 GND
A3 GND
A4 GND
A5 GND
A6 GND
A7 GND
A8 GND
A9 GND
A10 +12V
A11 +12V
A12 +12V
A13 +12V
A14 +12V
A15 +12V
A16 +12V
A17 +12V
A18 +12V
A19 PMBus SDA
A20 PMBus SCL
A21 PSON
A22 SMBAlert#
A23 Return Sense
A24 +12V remote Sense
A25 PWOK
Pin Name
B1 GND
B2 GND
B3 GND
B4 GND
B5 GND
B6 GND
B7 GND
B8 GND
B9 GND
B10 +12V
B11 +12V
B12 +12V
B13 +12V
B14 +12V
B15 +12V
B16 +12V
B17 +12V
B18 +12V
B19 A0 (SMBus address)
B20 A1 (SMBus address)
B21 12V stby
B22 Cold Redundancy Bus
B23 12V load share bus
B24 No Connect
B25 Compatibility Check pin*
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