Dell PowerEdge 2850 - Manual (Page 45)

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Installing System Options
Dell™ PowerEdge™ 2850 Systems Installation and Troubleshooting Guide
System Fans
Power Supplies
Expansion-Card Cage
Expansion Cards
System Memory
Processors
System Battery
Installing an Optional RAC Card
This section describes how to remove and replace the following components:
l Expansion cards
l Memory upgrades
l Microprocessor upgrades
l RAC card
This section also includes instructions for replacing the fans, power supplies, and system battery, if necessary.
System Fans
The system includes the following hot-pluggable cooling fans:
l Two rear system fans
l Three front fans for one microprocessor or four front fans for two microprocessors
Removing a Cooling Fan
1. Open the system. See " Opening the System " in "Troubleshooting Your System."
2. Raise the fan handle and pull the fan straight up to clear the chassis. See Figure 6 -1 .
Figure 6-1. Removing and Installing a Cooling Fan
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See
your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against
electrostatic discharge.
NOTE: The procedure for removing each individual fan is the same.
NOTICE: The cooling fans are hot-pluggable. To maintain proper cooling while the system is on, replace only one fan at a time.