Acer Aspire 5741g Service Guide

Chapter 4141
External Mouse Failure
If an external Mouse fails, perform the following actions one at a time to correct the problem. 
1.Try an alternative mouse.
2.If the mouse uses a wireless connection, insert new batteries and confirm there is a good connection. See 
the mouse user manual.
3.If the mouse uses a USB connection, try an alternate USB port.
4.Try an alternative program to verify mouse operation. Reinstall the program experiencing mouse failure.
5.Restart the computer.
6.Remove any recently...

142Chapter 4
Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a 
hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement 
should be considered only when a recurring problem exists.
When analyzing an intermittent problem, do the following:
1.Run the advanced diagnostic test for the system board in loop mode at least 10 times.
2.If no error is detected, do not replace any FRU.
3.If any...

Chapter 4143
Post Codes
These tables describe the POST codes and descriptions during the POST.
Post Code Range
SEC Phase POST Code Table
NOTE: The color bar items indicate 3rd party related functions that are platorm dependent.
PhasePOST Code Range
SEC 0x01 - 0x0F
PEI 0x70 - 0x9F
DXE 0x40 - 0x6F
BDS 0x10 - 0x3F
SMM 0xA0 - 0xBF
S3 0xC0 - 0xCF
ASL 0x51 –  0x55
0xE1 – 0xE4
PostBDS 0xF9 – 0xFE
InsydeH2ODDT™
Reserve0xD0 – 0xD7
OEM Reserve 0xE8 – 0xEB
Reserved 0xD8 – 0xE0
0xE5 – 0xE7
0xEC – 0xF8
Functionality...

144Chapter 4
PEI Phase POST Code Table:
NOTE: The color bar items indicate 3rd party related functions that are platorm dependent.
Functionality Name (Include 
PostCode.h)PhasePost
CodeDescription
PEI_SIO_INIT PEI 70 Super I/O Initialization
PEI_CPU_REG_INIT PEI 71 CPU Early Initialization
PEI_CPU_AP_INITPEI72Multi-processor Early Initial
PEI_CPU_HT_RESETPEI73HyperTransport Initialization
PEI_PCIE_MMIO_INIT PEI 74 PCIE MMIO BAR Initialization
PEI_NB_REG_INIT PEI 75 North Bridge Early Initialization...

Chapter 4145
DXE Phase POST Code Table:
NOTE: The color bar items indicate 3rd party related functions that are platorm dependent.
Functionality Name (Include\ 
PostCode.h)PhasePostCodeDescription
DXE_TCGDXEDXE40TPM initial in DXE
DXE_SB_SPI_INITDXE41South bridge SPI initialization
DXE_CF9_RESETDXE42Setup Reset service
DXE_SB_SERIAL_GPIO_INITDXE43South bridge Serial GPIO 
initialization
DXE_SMMACCESSDXE44Setup SMM ACCE SS service
DXE_NB_INITDXE45North bridge Middle initialization
DXE_SIO_INITDXE46Super...

146Chapter 4
BDS Phase POST Code Table:
Functionality Name (Include 
PostCode.h)PhasePost
CodeDescription
BDS_ENTER_BDS BDS 10 Enter BDS entry
BDS_INSTALL_HOTKEY BDS 11 Install Hotkey service
BDS_ASF_INITBDS12ASF Initialization
BDS_PCI_ENUMERATION_START BDS 13 PCI enumeration
BDS_BEFORE_PCIIO_INSTALL BDS 14 PCI resource assign complete
BDS_PCI_ENUMERATION_END BDS 15 PCI enumeration complete
BDS_CONNECT_CONSOLE_IN BDS 16 Keyboard Controller, Keyboard 
and Mouse initialization
BDS_CONNECT_CONSOLE_OUT BDS...

Chapter 4147
NOTE: The color bar items indicate 3rd party related functions that are platorm dependent.
PostBDS POST Code Table
S3 Functions POST Code Table
ACPI Functions POST Code Table
SMM Functions POST Code TableBDS_RECOVERY_START_FLASH BDS 35 Fast Recovery Start Flash.
Functionality Name (Include 
PostCode.h)PhasePost
CodeDescription
POST_BDS_NO_BOOT_DEVICE POST_BDS F9 No Boot Device
POST_BDS_START_IMAGE POST_BDS FB UEFI Boot Start Image
POST_BDS_ENTER_INT19 POST_BDS FD Legacy 16 boot entry...

148Chapter 4
InsydeH2ODDT Debugger POST Code TableSMM_ACPI_DISABLE_START SMM 0xA8 OS call ACPI disable function
SMM_ACPI_DISABLE_END SMM 0xA9 ACPI disable function complete
Functionality Name 
(Include PostCode.h)PostCodeDescription
Used by Insyde debugger 0x0D Waiting for device connect
Used by Insyde debugger 0xD0 Waiting for device connect
Used by Insyde debugger 0xD1 InsydeH2ODDT Ready
Used by Insyde debugger 0xD2 EHCI not found
Used by Insyde debugger 0xD3 Debug port connect low speed device
Used by...

Chapter 5149
Jumper and Connector Locations
Top View
ItemDescriptionItemDescription
JLVDS1 Connect to LED / CCFL Connector JLED1 Connect to Powerboard (FFC) 
JSPK2 Connect to Left Speaker JLED2 Connect to Powerboard (FFC)
JSPK1 Connect to Right Speaker JP1 Connect to internal MIC
JKB1 Connect to Keyboard SW2/SW3 Left button / Right button
JTP1 Connect to Touch pad (FFC) LED1/LED3 Power State Indicator
JUSB2 Connect to Power USB Board 
(FFC)LED2/LED4 Battery Charging Indicator
JCR1 Connect Card Reader...

150Chapter 5
Bottom View
ItemDescriptionItemDescription
PJP2 Connect to Battery JHP1 Connect to external headphone
PJP1 DC-IN jack JBT1 Connect to BT
JDIMM1/
JDIMM2DDR3 memory socket JHDD1 Connect to SATAHDD
JCRT1 Connect to external CRT JODD1 Connect to SATAODD
JRJ45 RJ45 LAN JP4 Connect to 3G board
JHDMI1 HDMI connector JFAN1 Connect to FAN
JMINI1 Connect to WLAN JCPU1 CPU socket
JUSB1 USB connector U41 PCH
JMIC1 Connect to external microphone