Installing The Optical Drive; Cooling Fans; Removing A Cooling Fan - Dell External OEMR R620 Owner's Manual

3. release tab

Installing The Optical Drive

CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
NOTE: This procedure applies only to the 8-hard drive system.
1. If installed, remove the front bezel.
2. Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
3. Open the system.
4. Align the optical drive with the optical drive slot on the front of chassis.
5. Slide in the optical drive until the latch snaps into place.
6. Connect the power/data cable to the optical drive and system board.
NOTE: You must route the cable properly on the side of the system to prevent it from being pinched or crimped.
7. Close the system.
8. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
9. If applicable, install the front bezel.

Cooling Fans

Your system supports hot-swappable cooling fans.
NOTE: In the event of a problem with a particular fan, the fan number is referenced by the system's management
software, allowing you to easily identify and replace the proper fan by noting the fan numbers on the cooling fan
assembly.

Removing A Cooling Fan

WARNING: Opening or removing the system cover when the system is on may expose you to a risk of electric
shock. Exercise utmost care while removing or installing cooling fans.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
CAUTION: The cooling fans are hot-swappable. To maintain proper cooling while the system is on, replace only
one fan at a time.
CAUTION: Do not operate the system with the cover removed for a duration exceeding 5 minutes.
NOTE: The procedure for removing each fan is identical.
1. Open the system.
2. Hold the fan and lift it out of the system.
53