Dell PowerEdge 840 Hardware Owner's Manual (PDF) - Page 47

Closing the System, Replacing the Cover, Installing the Bezel, Connecting Drives, Interface Cables - hard drive replacement

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Closing the System Replacing the Cover 1 Ensure that all cables are connected, and fold cables out of the way. 2 Ensure that no tools or loose parts are left inside the system. 3 Fit the cover on the side of the system, and slide the cover backward. 4 Tighten 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 IDE optical drives, internal IDE and external SCSI tape drives (with optional SCSI HBA card) (See Figure 3-7.) 80-pin IDE 2-drop cable or external SCSI cable Up to four cabled SATA hard drives 7-pin SATA hard-drive cable (non-hot-plug) (See Figure 3-9.) (one cable per drive) Up to four cabled (non-hot-plug) 32-pin 1- to 4-drop SAS cable SAS hard-drives (See Figure 3-13.) Up to four SAS or SATA hard drives 32-pin SAS backplane cable connected to the SAS backplane (hot plug) (See Figure 3-12.) Cable Connections IDE drive and primary IDE connector on system board or external SCSI tape device (with option SCSI HBA card) SATA hard drives and SATA port connectors on the system board, or via SAS controller card SAS hard drives connected to SAS controller card SAS backplane connected to the SAS controller card Installing System Components 47

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Installing System Components
47
Closing the System
Replacing the Cover
1
Ensure that all cables are connected, and fold cables out of the way.
2
Ensure that no tools or loose parts are left inside the system.
3
Fit the cover on the side of the system, and slide the cover backward.
4
Tighten 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
external SCSI tape drives (with
optional SCSI HBA card) (See
Figure 3-7.)
80-pin IDE 2-drop cable or
external SCSI cable
IDE drive and primary IDE
connector on system board or
external SCSI tape device (with
option SCSI HBA card)
Up to four cabled SATA hard drives
(non-hot-plug) (See Figure 3-9.)
7-pin SATA hard-drive cable
(one cable per drive)
SATA hard drives and SATA port
connectors on the system board,
or via SAS controller card
Up to four cabled (non-hot-plug)
SAS hard-drives (See Figure 3-13.)
32-pin 1- to 4-drop SAS cable
SAS hard drives connected to
SAS controller card
Up to four SAS or SATA hard drives
connected to the SAS backplane (hot
plug) (See Figure 3-12.)
32-pin SAS backplane cable
SAS backplane connected to the
SAS controller card