Biostar U8668 Grand Manuale Proprietario
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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
2 +3.3V 12 -12V
3 Ground 13 Ground
4 +5V 14
PS_ON
5 Ground 15 Ground
6 +5V 16
6 +5V 16
Ground
7 Ground 17 Ground
8 PW_OK 18 -5V
9 +5V_SB 19 +5V
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
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.
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
supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types. This
connector supports the provided floppy drive ribbon cables.