Chapter
1
Motherboard
Description
11
4-2. ATX 20-pin Power Connector: JATXPWR1
PIN Assignment PIN Assignment
1 +3.3V 11 +3.3V
2 +3.3V 12 -12V
3 Ground 13 Ground
4 +5V 14
PS_ON
5 Ground 15 Ground
6 +5V 16
Ground
7 Ground 17 Ground
8 PW_OK 18 -5V
9 +5V_SB 19 +5V
10 +12V 20 +5V
4-3. Hard Disk Connectors: IDE1/IDE2
This mainboard has a 32-bit Enhanced PCI IDE Controller that provides
PIO Mode 0~4, Bus Master, and Ultra DMA / 33, Ultra DMA / 66,Ultra
DMA / 100 functionality. It has two HDD connectors IDE1 (primary)
and IDE2 (secondary).
•
IDE1 (Primary IDE Connector)
The first hard drive should always be connected to IDE1. IDE1 can
connect a Master and a Slave drive. You must configure the second
hard drive on IDE1 to Slave mode by setting the jumper accordingly.
•
IDE2 (Secondary IDE Connector)
The IDE2 controller can also support a Master and a Slave drive. The
configuration is similar to IDE1. The second drive on this controller
must be set to slave mode.
4-4. Floppy Disk Connector: FDD1
The motherboard provides a standard floppy disk connector (FDC) that
supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types. This
connector supports the provided floppy drive ribbon cables.
