Dell 840 manual Closing the System, Connecting Drives

Closing the System

Replacing the Cover

1Ensure that all cables are connected, and fold cables out of the way.

2Ensure that no tools or loose parts are left inside the system.

3Fit the cover on the side of the system, and slide the cover backward.

4Tighten the cover thumbscrew to secure the cover.

Installing the Bezel

To install the bezel, align the hooks at the bottom of the bezel, swing the top of the bezel toward the system, and press the bezel onto the system until it snaps into place. Using the system key, lock the bezel.

Connecting Drives

Interface Cables

Most interface connectors are keyed for correct insertion. Keying ensures that the pin-1 wire in the cable connects to pin 1 in the connectors on both ends. When you disconnect an interface cable, take care to grasp the cable connector, rather than the cable itself, to avoid stress on the cable.

Drive Cable Configurations

Your system can accommodate many different drive configurations, each with specific cable requirements. Table 3-1 shows the cable requirements for common drive configurations.

Table 3-1. Drive Cable Configuration

Drives	Required Cable	Cable Connections
IDE optical drives, internal IDE and	80-pin IDE 2-drop cable or	IDE drive and primary IDE
external SCSI tape drives (with	external SCSI cable	connector on system board or
optional SCSI HBA card) (See		external SCSI tape device (with
Figure 3-7.)		option SCSI HBA card)
Up to four cabled SATA hard drives	7-pin SATA hard-drive cable	SATA hard drives and SATA port
(non-hot-plug) (See Figure 3-9.)	(one cable per drive)	connectors on the system board,
		or via SAS controller card
Up to four cabled (non-hot-plug)	32-pin 1- to 4-drop SAS cable	SAS hard drives connected to
SAS hard-drives (See Figure 3-13.)		SAS controller card
Up to four SAS or SATA hard drives	32-pin SAS backplane cable	SAS backplane connected to the
connected to the SAS backplane (hot		SAS controller card
plug) (See Figure 3-12.)

Installing System Components

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