Dell 2950 owner manual System Board Service-only Procedure, Removing the System Board, 107

4Connect the display module cable to the control panel board. See Figure 3-35.

5Connect the control panel cable to the control panel board. See Figure 3-35.

6Close the system. See "Closing the System" on page 55.

7Reconnect the system to the power source and turn on the system and attached peripherals.

8If applicable, install the bezel.

System Board (Service-only Procedure)

Removing the System Board

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.

1Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.

2Open the system. See"Opening the System" on page 54

3If applicable, remove any expansion cards. See "Installing an Expansion Card" on page 77

4Remove the expansion-card cage. See "Removing the Expansion-Card Cage" on page 78

5Remove the cooling shroud. See "Removing the Cooling Shroud" on page 67.

6Remove the fans. See "Removing a System Fan" on page 65.

7Remove the fan bracket. See "Removing the Fan Bracket" on page 68

8If applicable, remove the RAC card. See "Installing a RAC Card" on page 80

CAUTION: The DIMMs are hot to the touch for some time after the system has been powered down. Allow time for the DIMMs to cool before handling them. Handle the DIMMs by the card edges and avoid touching the DIMM components.

9Remove the memory modules. See "Removing Memory Modules" on page 92.

NOTE: While removing the memory modules, record the memory module socket locations to ensure proper installation.

10Remove the heatsink(s) and microprocessor(s). See "Removing a Processor" on page 93.

11Remove the TOE key, if present. See Figure 6-2 for the location of the TOE key.

12Remove the sideplane. See "Removing the Sideplane Board" on page 101.

13Remove the SAS backplane. See "Removing the SAS Backplane Board" on page 103.

14Remove the system board:

a Pull the system-board tray riser release pin. See Figure 3-36.

b While pulling the release pin, slide the system-board tray toward the front of the chassis. c Lift up the system-board tray and remove it from the chassis.

Installing System Components

107