MSI K9AU Speedster-A4 - Manual (Page 24)

2-12
MS-96B3 Mainboard
PIN SIGNAL DESCRIPTION
1 HD_LED + Hard disk LED pull-up
2 FP PWR/SLP MSG LED pull-up
3 HD_LED - Hard disk active LED
4 FP PWR/SLP MSG LED pull-up
5 RST_SW - Reset Switch low reference pull-down to GND
6 PWR_SW + Power Switch high reference pull-up
7 RST_SW + Reset Switch high reference pull-up
8 PWR_SW - Power Switch low reference pull-down to GND
9 RSVD_DNU Reserved. Do not use.
JFP1 Pin Definition
Front Panel Connector: JFP1
This connector is provided for electrical connection to the front panel switches and
LEDs and is compliant with Intel
® Front Panel I/O Connectivity Design Guide.
Fan Power Connectors: CPUFAN1, SYSFAN1, SYSFAN2
The fan power connectors support system cooling fan with +12V. W hen connecting
the wire to the connectors, always note that the red wire is the positive and should
be connected to the +12V; the black wire is Ground and should be connected to GND.
If the mainboard has a System Hardware Monitor chipset onboard, you must use a
specially designed fan with speed sensor to take advantage of the CPU fan control.
Important
Please refer to the recommended CPU fans at CPU’s official website or con-
sult the vendors for proper CPU cooling fan.
2
1
10
9
JFP1
HDD
LED Reset
Switch
Power
LED Power
Switch
+ +
+
- -
-
CPUFAN1,
SYSFAN1,
SYSFAN2
S
E
N
S
O
R
+
1
2
V
G
N
D
C
O
N
T
R
O
L
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