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Connect the first hard drive to the other end of the cable. Wire 1
on the cable should also connect to pin 1 on the hard drive
connector, which is labeled on the drive circuit board. Check the
documentation that came with the drive for more information.
Connect the second drive, as described above, on CN15.
2.5.14 Serial IRQ ???? (CN16)
2.5.15 Audio connector (CN17)
Connect external speakers to CN17. To activate the on-board
buzzer, set the connector so that Pins 3 and 4 are closed.
2.5.16 EIDE, CDROM, HDD connector (CN18)
The PCI-6870 provides 2 IDE channels which you can attach up to
four Enhanced Integrated Device Electronics hard disk drives or
CDROM to the PCI-6870's internal controller. The PCI-6870's IDE
controller uses a PCI interface. This advanced IDE controller
supports faster data transfer, PID mode 3, mode 4 and UDMA/100.
The secondary channel supports UDMA/33 only.
Connecting the hard drive
Connecting drives is done in a daisy-chain fashion. It requires one
of two cables (not included in this package), depending on the
drive size. 1.8" and 2.5" drives need a 1 x 44-pin to 2 x 44-pin flat-
cable connector. 3.5" drives use a 1 x 44-pin to 2 x 40-pin
connector.
Wire number 1 on the cable is red or blue, and the other wires are
gray.
Connect one end of the cable to CN14 or CN16. Make sure that the
red (or blue) wire corresponds to pin 1 on the connector, which is
labeled on the board (on the right side).
Chapter 2 Installation
18
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