1

Intrusion switch

2

SAS backplane

3

Center brace

4

Center brace channel

5

Center brace lock

6

Heat sink retention bracket

7

ZIF lever

8

System board

9

SATA_A connector

10

SATA_B connector

11

Blue plunger

12

CONTROL PANEL connector

13

SIGNAL connector

14

PWR DIST CONN connectors (2)

CAUTION: Exercise care when removing the system board to prevent damage to cables, connectors, and components.

1Ensure power is removed.

2Disconnect any USB, VGA, and serial connections on the back of the chassis.

3Remove the top cover. See "Removing the Top Cover" on page 60.

4Remove the cooling shroud. See "Removing the Cooling Shroud" on page 76.

5Remove the processor heat sinks. See "Removing a Processor Heat Sink" on page 101.

6Remove the SAS controller card. See "Removing a SAS Controller Card" on page 80.

7Remove the RAID battery. See "Removing a RAID Battery" on page 85.

8Disconnect the Intrusion switch from the system board at J1H1.

9Remove the memory risers. See "Removing a Memory Riser" on page 96.

10Remove all PCI Express cards. See "PCI Express Add-in Cards" on page 86.

11Remove the I/O Riser. See "Removing the I/O Riser" on page 110.

12Remove the back fans and fan housings. See "System Fans" on page 70.

13Disconnect SATA_A from the system board at J3E2.

14Remove the SATA_A cable from the center brace channel.

15Slide the center brace locks toward the back of the chassis to unlock the center brace, then lift the center brace out of the chassis.

Installing System Components

123

Page 123
Image 123
Dell XK946 manual 123