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Power and signal cables for internal drives
Your server uses cables to connect parallel IDE, simple-swap Serial ATA, and SCSI
devices to the power supply and to the system board. (See "System-board internal
connectors" on page 9 for the location of system-board connectors.) Review the
following information before connecting power and signal cables to internal drives:
v The drives that are preinstalled in your server come with power and signal cables
v When you install a drive, make sure that one of the signal cable drive connectors
v If you have only one IDE device on a cable, it must be set as a master device.
v If two IDE devices are used on a single cable, one must be designated as the
The following cables are provided:
v Power cables: Four-wire power cables connect the drives to the power supply.
v Signal cables: Signal cables are typically flat cables, also called ribbon cables,
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xSeries 206 Type 8482: Installation Guide
attached. If you replace any drives, remember which cable is attached to which
drive.
is connected to the drive and that the connector at the other end of the signal
cable is connected to the system board.
master device and the other as the subordinate device; otherwise, the server
might not recognize some of the IDE devices. The master and subordinate
designation is determined by switch or jumper settings on each IDE device.
At the end of these cables are plastic connectors that can be attached to
different drives; these connectors vary in size. Use either a four-wire power cable
or Serial ATA power cable with Serial ATA drives, but do not use both at the
same time (use one or the other).
that connect parallel IDE, Serial ATA, SCSI, and diskette drives to the system
board. Two or three types of signal cables come with your server:
– IDE: The wider IDE signal cable has three connectors. One of these
connectors is attached to the drive, one is a spare, and the third is attached to
the primary or secondary IDE connector on the system board. The spare
connector can be used to connect an additional IDE drive to your server.
The CD-ROM drive is attached to an ATA 100 signal cable. ATA 100 signal
cables are color-coded. The blue connector is attached to the system board.
The black connector is attached to the master IDE device. The gray middle
connector is attached to the subordinate IDE device.
– Diskette drive: The narrower signal cable has two connectors. One is
attached to the diskette drive, and the other is connected to the connector
(FDD1) on the system board.
– Serial ATA (SATA): The narrower, black signal cable has two connectors. One
is connected to the simple-swap Serial ATA drive, and the other is attached to
the connector on the system board. Each simple-swap Serial ATA drive comes
with a cable. If you install an additional simple-swap Serial ATA drive, you will
need an additional cable.
If you install the optional ServeRAID-7t S-ATA controller to add a third and
fourth SATA drive, all four SATA drives must then be connected to the
ServeRAID-7t S-ATA controller instead of the system board. The optional
ServeRAID-7t S-ATA controller comes with two cables that you can use to
cable the third and fourth SATA drives. See the optional ServeRAID-7t S-ATA
controller documentation for cabling instructions.
– SCSI: A round SCSI cable connects SCSI devices to the SCSI controller on
the system board.
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