
V06
The ATX power supply provides a single 20-pin connector.
Pin Description Pin Description
1
2
3
4
5
6
7
8
9
10
3.3V
3.3V
Ground
+5V
Ground
+5V
Ground
Power OK
5VSB
+12V
11
12
13
14
15
16
17
18
19
20
3.3V
-12V
Ground
PS-ON
Ground
Ground
Ground
-5V
+5V
+5V
Note:
Some ATX–power does not have –5V voltage output, it will
effect some function of ADD-ON card devices.
2-4 Hard Disk and Floppy Drive Connector: IDE1 IDE2 and FDD
The mainboard has a 32-bit Enhanced IDE controller that provides PIO mode 0-4, Bus
Master, and Ultra DMA33/66 function. It has two HDD connectors IDE1 (primary) and IDE2
(secondary). You can connect up to four hard disk drives, CD-ROM and other devices to IDE1
and IDE2.
Moreover, to each group of IDE connector, IDE can connect a Master and a Slave driver.
IDE1 Primary IDE Connector marked with blue
The first hard drive should always be connected to IDE1. IDE1 can connected a Master and a
slave drive. You must configure second hard drive to slave mode by setting the jumper
accordingly.
IDE2 Secondary IDE Connector
IDE2 can also connect a Master and a Slave drive.