Lenovo PC 300PL User guide for IBM PC300PL (type 6584, 6594) systems - Page 99

Power and signal cables for internal drives

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Power and signal cables for internal drives Your computer uses cables to connect integrated drive electronics (IDE) drives to the power supply and riser card. The following cables are provided: Four-wire power cables connect most drives to the power supply. At the end of these cables are plastic connectors that attach to different drives; these connectors vary in size. Also, certain power cables attach to the system board. Flat signal cables, also called ribbon cables, connect IDE and diskette drives to the riser card. There are two sizes of signal cables that come with your computer: - The wider signal cable has two or three connectors. - If the cable has three connectors, one of these connectors attaches to the drive, one is a spare, and the third attaches to the IDE connector on the riser card. - If the cable has two connectors, one of these connectors attaches to the drive, and the other attaches to the IDE connector on the riser card. Important If you want to add another device, and your computer does not come with a CD-ROM preinstalled, you will need a second signal cable with three connectors. You will need an 80-conductor ATA 66 signal cable if you are replacing the existing signal cable or adding a second hard disk. ATA 66 signal cables are color-coded. The blue connector attaches to the riser card; the black connector attaches to the primary device (also known as the master device), and the gray middle connector attaches to the secondary device (also known as the slave device). If your computer comes with a CD-ROM drive, it will have an ATA 33 signal cable. However, if you are installing an ATA 66 hard disk and want to take advantage of the faster rates, you must obtain an ATA 66 signal cable, change the switch setting on the CD-ROM drive to secondary and change the connector used for the CD-ROM drive to the gray middle connector. The hard disk will operate at the faster 66 MHz rate, but the CD-ROM drive will still operate at the slower ATA 33 rate. - The narrower signal cable has two connectors for attaching the diskette drive to the diskette-drive connector on the riser card. Chapter 5. Installing options 85

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Power and signal cables for internal drives
Your computer uses cables to connect integrated drive electronics (IDE)
drives to the power supply and riser card.
The following cables are
provided:
±
Four-wire
power cables
connect most drives to the power supply.
At the
end of these cables are plastic connectors that attach to different drives;
these connectors vary in size.
Also, certain power cables attach to the
system board.
±
Flat
signal cables
, also called
ribbon cables
, connect IDE and diskette
drives to the riser card.
There are two sizes of signal cables that come
with your computer:
–
The wider signal cable has two or three connectors.
-
If the cable has three connectors, one of these connectors
attaches to the drive, one is a spare, and the third attaches to
the IDE connector on the riser card.
-
If the cable has two connectors, one of these connectors
attaches to the drive, and the other attaches to the IDE
connector on the riser card.
Important
If you want to add another device, and your computer
does not come with a CD-ROM preinstalled, you will need
a second signal cable with three connectors.
You will need
an 80-conductor ATA 66 signal cable if you are replacing
the existing signal cable or adding a second hard disk.
ATA 66 signal cables are color-coded.
The blue connector
attaches to the riser card; the black connector attaches to
the primary device (also known as the master device), and
the gray middle connector attaches to the secondary device
(also known as the slave device).
If your computer comes with a CD-ROM drive, it will
have an ATA 33 signal cable.
However, if you are
installing an ATA 66 hard disk and want to take
advantage of the faster rates, you must obtain an ATA 66
signal cable, change the switch setting on the CD-ROM
drive to secondary and change the connector used for the
CD-ROM drive to the gray middle connector.
The hard
disk will operate at the faster 66 MHz rate, but the
CD-ROM drive will still operate at the slower ATA 33 rate.
–
The narrower signal cable has two connectors for attaching the
diskette drive to the diskette-drive connector on the riser card.
Chapter 5.
Installing options
85