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IDE Hard Drive Connectors
Primary IDE Hard Drive Connector (CN16)
Secondary IDE Hard Drive Connector (CN17)
You can attach up to four Enhanced Integrated Device Electronics
hard disk drives to the mainboard's internal controller. The main-
board's IDE controller uses a PCI local-bus interface. This advance
interface supports faster data transfer and allows the IDE hard
drive to exceed 528 MB.
Connecting the hard drive
Connecting drives, their done in a daisy-chain fashion and requires
one of the three cables, depending on the drive size. 1.8" and 2.5"
drives need one 44-pin to two 44-pin flat cable connector. 3.5"
drives use one 44-pin to two 40-pin connector.
Wire number 1 on the cable is normally red or blue, and the other
wires are usually gray.
1. Connect one end of the cable to CN16 or CN17. Make sure that
the red (or blue) wire corresponds to pin 1 on the con- nector,
which is marked and connectors are slotted.
2. Plug the other end of the cable to the Enhanced IDE hard drive,
with pin 1 on the cable corresponding to pin 1 on the hard
drives. (see your hard drive's documentation for the location of
the connector).
Connect a second drive as described above.
Unlike floppy drives, IDE hard drives can be connected to either
end of the cable. The pin definitions for this section are listed
on the next page.
Chapter 2 Installation 33
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