Peripheral bay, Removing the peripheral bay – Dell PowerVault 770N (Deskside NAS Appliance) User Manual

Page 31

Advertising
background image

The system board holds the system's control circuitry and other electronic components. Several hardware options, such as the

microprocessors and memory, are installed directly on the system board. The system board can accommodate up to seven

PCI expansion cards (two PCI or PCI-X cards at 64-bit/33-133 MHz, four PCI or PCI-X cards at 64-bit/33-100 MHz, and one

PCI card at 32-bit/33 MHz).

The peripheral bay provides space for a 3.5-inch diskette drive, a CD drive, and two hard drives.The hard-drive bays provide

space for up to five 1-inch SCSI hard drives. The hard drives connect to a controller on the system board or a RAID controller

card through the SCSI backplane board. For more information, see "

Hard Drives

."

The hard-drive bays provide space for up to six 1-inch hard drives. These hard drives are connected to a SCSI host adapter

on the system board or on an expansion card, by way of the SCSI backplane board.

The power supply distribution board (PSDB) provides power distribution for the system. One front-loadable power supply

slides into connectors mounted on the PSDB to provide power to the system board and internal peripherals. An option for a

second hot-pluggable power supply to provide redundant power is available.

For non-SCSI drives such as the diskette drive and CD drive, an interface cable connects the interposer board, attached to

the diskette drive and CD drive, to the system board. For SCSI devices, interface cables connect externally accessible SCSI

devices and the SCSI backplane board to a SCSI host adapter either on the system board or on an expansion card. For more

information, see "

Installing a Hard Drive

."

During an installation, repair, or troubleshooting procedure, you may be required to change a jumper. For information on the

system board jumpers, see "

Jumpers and Connectors

."

Peripheral Bay

The peripheral bay provides space for a CD/diskette drive and two hard drives (optional).

CAUTION:

Only trained service technicians are authorized to remove the system cover and access any of

the components inside the system. See your System Information Guide for complete information about

safety precautions, working inside the computer, and protecting against electrostatic discharge.

Removing the Peripheral Bay

1. Remove the bezel (see "

Removing the Bezel

").

2. Remove the system cover (see "

Removing the Cover

").

3. Disconnect the CD/diskette drive cable from the back of the CD/diskette drive.

Advertising