Dell R805 owner manual System Fans, Removing a System Fan

2Open the system. See "Opening the System" on page 71.

3Locate the SD card slot at the top of riser 1 and insert the contact-pin end of the card into the slot with the label on the card facing outward from the riser. See Figure 3-8.

NOTE: The slot is keyed to ensure correct insertion of the card.

4Press down on the card to lock it into the slot.

5Close the system. See "Closing the System" on page 71.

System Fans

The system includes six hot-pluggable fans to provide cooling to the system’s interior components. Fans 1 through 4, located behind the optical drive and SAS backplane, provide airflow over the processors and the "B" memory modules. Fans 5 and 6, located near the power supply bays, draw air over the "A" memory modules and into the power supplies. See Figure 3-9.

Removing a System 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.

NOTICE: The system fans are hot-pluggable. To maintain proper cooling while the system is on, replace only one fan at a time.

1Open the system. See "Opening the System" on page 71.

CAUTION: Use caution when handling the fan until the fan blades stop spinning.

2Raise the fan handle and pull the fan straight up from the fan bracket to clear the chassis. See Figure 3-9.

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Installing System Components