Chapter 9. Power supply and fan assembly
This topic provides the following information:
• “Power supply and fan assembly overview” on page 61
• “Precautions specic to the power supply and fan assemblies” on page 62
• “Identifying the airflow direction” on page 63
• “Interpreting nonport-side LEDs” on page 57
• “Power supply and fan assembly unit fault indicators” on page 63
• “Power supply and fan assembly task guide” on page 63
• “Time and items required” on page 64
• “Recording power supply and fan assembly critical information” on page 64
• “Removing a power supply and fan assembly” on page 65
• “Installing a new power supply and fan assembly” on page 65
• “Verifying the operation of the power supply and fan assemblies” on page 67
Removing the battery
CAUTION:
The battery contains lithium. To avoid possible explosion, do not burn or charge the
battery. Do not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local
regulations. In the United States, IBM has a process for the collection of this battery. For
information, call 1-800-426-4333. Have the IBM part number for the battery unit available when
you call. (C003)
Local regulations may require removing the battery prior to disposing of or recycling this product.
Complete these steps to remove the battery.
1. Disconnect all power and communication cables.
2. Remove all transceivers.
3. Remove the power supplies and fans.
4. Unscrew the fasteners and remove the sheetmetal cover from the chassis.
5. On the main circuit board, go to location 1 shown in Figure 34 on page 80 and remove the BR1225
battery from the holder.
©
Copyright IBM Corp. 2016, 2020 79
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