IBM 8685 Hardware Maintenance Manual - Page 109
The external fans fans 7 through 9 are located in front of the power supplies.
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to the top power-cord connector in power-supply bay 1. Power supplies 2 and 4 (PS2 and PS4, respectively) are connected to the bottom power-cord connector in power-supply bay 1. Before you continue with the power-supply installation procedure, review the following precautions: Notes: 1. To ensure proper cooling and server operation, power-supply bays 1 and 2 must have a power supply installed at all times. 2. The external fans (fans 7 through 9) are located in front of the power supplies. During normal operation, each fan bay must have a fan installed for proper cooling. See "Replacing an external fan" on page 103 for an illustration of the external fan bays. Chapter 4. Customer replaceable units 99
to the top power-cord connector in power-supply bay 1. Power supplies 2 and 4
(PS2 and PS4, respectively) are connected to the bottom power-cord connector in
power-supply bay 1.
Before you continue with the power-supply installation procedure, review the
following precautions:
Notes:
1.
To ensure proper cooling and server operation, power-supply bays 1 and 2 must
have a power supply installed at all times.
2.
The external fans (fans 7 through 9) are located in front of the power supplies.
During normal operation, each fan bay must have a fan installed for proper
cooling. See “Replacing an external fan” on page 103 for an illustration of the
external fan bays.
Chapter 4. Customer replaceable units
99