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JP1: VGA Enable/Disable Jumper
1
3
1
3
J4/J19/J20/J32: 4-pin Fan Connectors with Speed Control
Ta ch ome ter
+12V
S pee d C ontrol
GND
J24: Front Panel Header
NC
GND
_
Warning LED -
Warning LED +
PWR SW
PWR LED-
PWR LED+
(Default)-Enable VGA
Disable VGA
Use these headers to connect the cooling fans to the
motherboard to keep the system stable and reliable.
This connector supports the tachometer monitoring
and auto fan speed control.
Pin 1
GND
J4: FAN2 J19: FAN4 J20: FAN3
SMBUS Clock
18
17
SMBUS Data
16
15
14
13
12
11
Non-mask
Interrupt (NMI)
10
9
8
7
6
5
HDD LED-
4
3
HDD LED+
2
1
http://www.tyan.com
Pin 2
Pin 3
+12V
Tachometer
The motherboard
provides one front panel
header for electrical
connection to the front
panel switches and
5VSB
LED's.
Reset
17
Pin 4
Speed
J32: FAN1
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