User Manual

ASUS P5A-VM User’s Manual 29

III. INSTALLATION

Connectors

III. INST ALLATION

11. Chassis Intrusion Alarm Lead (4-1 pin CHASIS)

This requires an external detection mechanism such as a chassis intrusion moni-

tor/sensor or microswitch. The sensor is triggered when a high level signal is

sent to the CHASIS lead. This occurs when the side panel is opened or drive bay

doors are opened.

NOTE: When the chassis is opened, connect/short the Chassis Signal pin to the

+5VSB pin. When the chassis is closed, connect/short the Chassis Signal pin to

the Ground pin.

P5A-VM Chassis Open Alarm Lead

+5Volt (Power Supply Stand

Ground

Chassis Signal

TIP: You may configure two hard disks to be both Master drives using one ribbon

cable on the primary IDE connector and another ribbon cable on the secondary

IDE connector. You may install one operating system on an IDE drive and an-

other on a SCSI drive and select the boot disk through the BIOS features Setup.