Abit NV7M User Manual page 24

2-16
(13). IDE1and IDE2 Connectors
! The Master or Slave status of the hard disk drive is set on the hard disk itself. Please refer to the
hard disk drive user's manual.
! To connect Ultra DMA 100 devices on IDE1and IDE2, an Ultra DMA 66 cable is required.
! A red mark on a wire typically designates the location of pin 1. You need to align the wire pin 1 to
the IDE connector pin 1, before inserting the wire connector into the IDE connector.
NV7m Motherboard
This motherboard provides two IDE ports (IDE1 &
IDE2) to connect up to four IDE devices in Ultra DMA
100 mode by Ultra DMA 66 ribbon cables. Each cable
has 40-pin 80-conductor and three connectors,
providing two hard drive connections with the
motherboard. Connect the single end (blue connector)
at the longer length of ribbon cable to the IDE port on
motherboard, and the other two ends (gray and black
connector) at the shorter length of the ribbon cable to
the connectors on hard drives.
If you want to connect two hard drives together through
one IDE channel, you must configure the second drive
to Slave mode after the first Master drive. Please refer
to the HDD documentation for jumper settings. The
first drive connected to IDE1 is usually referred to as
"Primary Master", and the second drive as "Primary
Slave". The first drive connected to IDE2 is referred to as
"Secondary Master" and the second drive as "Secondary
Slave".
Keep away from connecting one legacy slow speed device,
like CD-ROM, together with another hard disk drive on
the same IDE channel; this will decrease your integral
system performance.
Note
Figure 2-8. Ultra DMA 66
Ribbon Cable Outline
Chapter 2