Biostar U8768 Owner's Manual Page 18

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Chapter 1 Motherboard Description
1-15
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, and Ultra DMA / 133 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.
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