Asus P4B-MX Motherboard DIY Troubleshooting Guide - Page 41

Connectors

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2.8 Connectors This section describes and illustrates the internal connectors on the motherboard. Do not place jumper caps over connector pins. Doing so may damage your motherboard. Always connect ribbon cables with the red stripe to Pin 1 on the connectors. Pin 1 is usually on the side closest to the power connector on hard drives and CD-ROM drives, but may be on the opposite side on floppy disk drives. 1. Hard disk activity LED (2-pin HDDLED) This connector supplies power to the hard disk activity LED. The read or write activities of any device connected to the primary or secondary IDE connector cause this LED to light up. ® P4B-MX TIP: If the case-mounted LED does not light up, try reversing the 2-pin plug. HDDLED P4B-MX HDD Activity LED Figure 2-25 Hard Disk LED Connector ASUS P4B-MX motherboard user guide 2-21

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ASUS P4B-MX motherboard user guide
2-21
Figure 2-25
Hard Disk LED Connector
2.8
Connectors
This section describes and illustrates the internal connectors on the
motherboard.
Do not place jumper caps over connector pins. Doing so may damage
your motherboard.
Always connect ribbon cables with the red stripe to Pin 1 on the
connectors. Pin 1 is usually on the side closest to the power connector
on hard drives and CD-ROM drives, but may be on the opposite side
on floppy disk drives.
1.
Hard disk activity LED (2-pin HDDLED)
This connector supplies power to the hard disk activity LED. The read
or write activities of any device connected to the primary or secondary
IDE connector cause this LED to light up.
P4B-MX
P4B-MX HDD Activity LED
TIP:
If the case-mounted LED does not
light up, try reversing the 2-pin plug.
HDDLED