11
CPU_FAN1: CPU Fan Power Connector
Pin #
Signal Name
1 Ground
2 +12V
3 Rotation
detection
4
Control
SW1: Software reset button
Signal Name
Pin # Pin #
Signal Name
GND 1
2
PCH
GPIO7
IO Base:
Read IO 0x500 and set bit 7 to “1” (Enabled GPIO function)
Read IO 0x504 and set bit 7 to “1” (GPIO act as GPI )
Read IO 0x50C and check the bit 7 (Control Pin)
Note: SW3 is controlled by GPIO only.
PCIE1: PCI-e x8 Golden Finger 1
PCIE2: PCI-e x8 Golden Finger 2
LED1: Power, Bypass & Status LED
Index port: 4E
Data port: 4F
Device: 06
30h
bit1 = 1
C0h
set bit2, bit3 = 1 for GPO
C3h
set bit2, bit3 = 1 for Push Pull
C1h
bit2, bit3 (Control pin) for GPO32, 33
Signal Name
Pin #
Pin #
Signal Name
SIO GPIO32
C1
A1
SIO GPIO33
Bypass LED-
C2
A2
Bypass LED+
POWER LED-
C3
A3
POWER LED+
STATUS LED
GPIO33
GPIO32
YELLOW H L
RED L
H
C1
C2
C3
A1
A2
A3
