Intel S875WP1LX Specification page 28

Functional Architecture
NOTE
ATA-66 and ATA-100 are faster timings and require a specialized 40-pin, 80-wire cable to
reduce reflections, noise, and inductive coupling.
The IDE interfaces also support ATAPI devices (such as CD-ROM drives) and ATA devices
using the transfer modes. The BIOS supports Logical Block Addressing (LBA) and Extended
Cylinder Head Sector (ECHS) translation modes. The drive reports the transfer rate and
translation mode to the BIOS.
The Server Board S875WP1-E supports Laser Servo (LS-120) diskette technology through the
IDE interfaces. The BIOS supports booting from an LS-120 drive.
NOTE
The BIOS will always recognize an LS-120 drive as an ATAPI floppy drive. To ensure correct
operation, do not configure the drive as a hard disk drive.
For information about
The location of the IDE connectors
The signal names of the IDE connectors
BIOS Setup program's Boot Configuration menu
Drive Configuration Submenu
3.2.3.1 SCSI Hard Drive Activity LED Connector
The SCSI hard drive activity LED connector is a 1 x 2-pin connector that allows an add-in
SCSI controller to use the same LED as the on-board IDE controller. For proper operation, this
connector should be wired to the LED output of the add-in SCSI controller. The LED indicates
when data is being read from, or written to, both the add-in SCSI controller and the IDE
controller.
For information about
The location of the SCSI hard drive activity LED connector
16
S875WP1-E TPS
Refer to
Figure 1
Table 30
Section 7.1.3.2
Section 7.1.3.4
Refer to
Figure 1
Revision 4.0