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Chapter 5
91
Jumper Setting
The section explains how to set jumper for correct configuration of the mainboard.
Setting Jumper
Use the motherboard jumpers to set system configuration options. Jumpers with more Than one pin are
numbered. When setting the jumpers, ensure that the jumper caps are Placed on the correct pins.
Internal header pin definition
Jumper/Header Name
Function
Definition
CPU_FAN (4 PIN)
CPU FAN HEADER
1: PWM
2: SENSE
3: POWER
4: GND
SYS_FAN (3 PIN)
SYS FAN HEADER
Yellow is symbol, Red is Pin 1 of symbol.
1: SENSE
2: POWER
3: GND
CLR_CMOS (3 PIN)
CLEAR CMOS HEADER
Yellow is symbol, Red is Pin 1 of symbol.
1-2:CLEAR_CMOS
(1:Ground, 2:RTC_RSTJ)
2-3:NORMAL
(3:VCC_RTC)
CPU_FAN
Header_1X3
1
2
3
Summary of Contents for Aspire M3970
Page 1: ...Acer Aspire M3970 Service Guide PRINTED IN TAIWAN ...
Page 12: ...4 Chapter 1 Block Diagram ...
Page 48: ...40 Chapter 3 4 Pull the ODD from the chassis ...
Page 72: ...64 Chapter 3 Install the I O Shielding 1 Install I O shielding into chassis ...
Page 87: ...Chapter 3 79 Install the Side Panel 1 Install the side Panel then fix two Screws ...
Page 95: ...87 Chapter 4 b Select Proceed with flash update and Press Enter ...
Page 97: ...Chapter 5 89 M B Placement Jumper and Connector Information Chapter 5 ...