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Chapter 2: Installation
2-17
JF1
J13
JL1
R52
R53
JPL1
JPL2
FAN3
FAN1
FAN_NB
41
FAN2
J3
J51
J46
JP5
JP4
BT1
JBT1
TP_ICH3
Tested to Comply
With FCC Standards
FOR HOME OR OFFICE USE
X7SLA-H
DESIGNED IN USA
NIC
I-SATA3
I-SATA2
I-SATA1
I-SATA0
SLOT7 PCI-E X4 in X8
SLOT6 PCI-E X8
USB2/3
COM2
USB4/5
USB6
JBT1:CMOS CLEAR
IDE
SLOT5 PCI 33MHZ
1-2:ENABLE
2-3:DISABLE
JPL1-2:LAN1/2
INTRUSION
JL1:CHASSIS
LAN2
LAN1
VGA
COM1
X
LED
PWRHDD
NIC
/FF
OHRSTPWR ON
1
JF1
DIMM1A
DIMM1B
JPW1
JPW2 for Device Power Only
KB/MOUSE
USB7
USB0/1
CPU
945GC
ICH7R
Fan Header
PinDenitions
Pin# Denition
1 Ground
2 +12V
3 Tachometer
4 PWM_Control
Fan Headers
The X7SLA-L/X7SLA-H has four fan
headers. Fan1 ~ Fan3 are system cooling
fans. MCH_FAN is used for the chipset
fan. These fans are 4-pin fan headers.
However, Pins 1~3 of the fan headers are
backward compatible with the traditional
3-pin fans. (Note: Please use all 3-pin
fans or all 4-pin fans on a motherboard.
Please do not use 3-pin fans and 4-pin
fans on the same board. Refer to the table
on the right for pin denitions.
Note: The speeds of 4-pin (PWM)
fans are controlled by Thermal Man-
agement via BIOS Hardware Moni-
toring in the Advanced Setting. (The
default setting is Disabled.)
A
B
Fan1
Fan2
Fan3
MCH_FAN
C
D
A
B
C
D
Note: MCH_FAN is used for the
chipset only.