Biostar U8668 GRAND U8668 Grand user's manual - Page 18

ATX 20-pin Power Connector, JATXPWR1, 3. Hard Disk Connectors: IDE1/IDE2 - support

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4-2. ATX 20-pin Power Connector: JATXPWR1 PIN 1 2 3 4 5 6 7 8 9 10 Assignment +3.3V +3.3V Ground +5V Ground +5V Ground PW_OK +5V_SB +12V PIN 11 12 13 14 15 16 17 18 19 20 Assignment +3.3V -12V Ground PS_ON Ground Ground Ground -5V +5V +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.

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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
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.