Biostar U8668 Pro, User Manual

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Chapter 1 Motherboard Description
13
4-1. Front Panel Connector: JPANEL1
Pin Assignment Function Pin Assignment Function
No. No.
1
+5V
2
Sleep Control Sleep
3
NA Speaker
4
Ground Button
5
NA Connector
6
NA
NA
7
Speaker
8
Power LED (+)
9
HDD LED (+) Hard Drive
10
Power LED (+) POWER
11
HDD LED (-) LED
12
Power LED (-) LED
13
Ground Reset
14
Power Button Power-on
15
Reset Control Button
16
Ground Button
17
NA
18
KEY
19
NA IrDA
20
KEY IrDA
21
VCC5 Connector
22
Ground Connector
23
IRTX
24
IRRX
SPK (Speaker Connector)
An offboard speaker can be installed on the motherboard as a
manufacturing option. An offboard speaker can be connected to
the motherboard at the front panel connector. The speaker
(onboard or offboard) provides error beep code information during
the Power On Self-Test when the computer cannot use the video
interface. The speaker is not connected to the audio subsystem
and does not receive output from the audio subsystem.
RST (Reset Button)
This connector can be attached to a momentary SPST switch. This
switch is usually open and when closed will cause the
motherboard to reset and run the POST (Power On Self Test).