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Note: You must install all four power modules if you are using both storage
modules.
If you disengage or remove all devices from the front of the BladeCenter S chassis
(media tray, blade servers, and storage modules), the power modules will be
disabled.
Indicators and controls
There are three LEDs on each power module:
AC power
Lit (green). Power is being supplied to the power module.
DC power
Lit (green). Power is being supplied from the power module to the
BladeCenter S chassis midplane.
Fault
Lit (amber). There is a fault with the power module.
Note: Before unplugging the AC power cord from the power module or
removing the power module from the BladeCenter S chassis, verify that the
capacity of the remaining power modules are sufficient to meet the
minimum power requirements for all components in the BladeCenter S
chassis. You can view power status and requirements through the
advanced management module.
For information on accessing and using the advanced management
module, see the Advanced Management Module User's Guide.
1. Verify that the power modules are properly connected to an AC power
source. All power modules in the BladeCenter S chassis must be
connected to the same power input voltage (either 110 V ac or 220 V
ac). Do not mix power input voltages.
2. Unplug the AC power cord from the power module and plug it in
again.
3. Reseat the power supply.
4. Swap the AC power cord with a power cord that is known to be
working.
5. Move the power module to another power module bay in the
BladeCenter S chassis.
Fan modules
The BladeCenter S chassis comes with four installed hot-swap fan modules.
The fan modules (sometimes called fan packs) are designed to provide cooling
airflow to the blade servers and I/O modules. Each fan module contains two fans.
21
Chapter 1. Introduction
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