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Tomcat i7221A S5151
2.9 Installing Drive Cables
TIP: IDE and FDD connectors are "keyed" to only allow insertion only one way. S5151
motherboard has two on-board IDE channels, each supporting two drives.
IDE Cable
When connecting to an IDE cable to a drive, Pin 1 on the IDE cable
(usually designated by a colored wire) should be closest to the drive
power connector.
The blue end of the cable connects directly to the motherboard and the
black end of the connector goes to the IDE device.
Serial ATA
Attaching Serial ATA cables to the Serial ATA connectors are illustrated below:
Plug in one end of the Serial ATA cable into the motherboard Serial ATA
connector, and the other end into the drive. Each standard Serial ATA cable has
tw o connectors, one at each end. Connectors are the same on both ends.
Floppy Drives
Floppy disk drive (FDD) cables are installed the same way as IDE cables. Usually connectors
are keyed to prevent insertion the wrong way. In most cases the cable should be inserted into
the drive with pin 1 closest to the power input. FDD cables usually have a single red wire that
marks pin 1. See the diagram below.
Symptoms of incorrectly installed floppy drives
Drive is not automatically detected
Drive Fail message at boot up
Drive does not power on
Drive activity light is constantly on
Usually caused by faulty cables, cables put in
backwards or a faulty floppy drive. Try another
floppy drive or try replacing the cable. Check to
see if the onboard floppy controller is enabled in
the BIOS setup.
The cable, floppy drive or motherboard may be
faulty. Try another drive or cable.
Check power cable and cabling. A faulty power
supply or drive cable could be the problem.
Usually signifies that the cable on the drive is
inserted backwards. Reverse the cable at the
floppy drive end and try again.
2-20
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Chapter 2: Board Installation
Colored cable denotes pin 1
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