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 added hardware and associated software.
7.Remove any recently added software and reboot.
8.Restore system and file settings from a known good date using System Restore. 
If the issue is not fixed, repeat the preceding steps and select an earlier time and date.
9.Run the Event Viewer to check the events log for errors. For more information see Windows Help and 
Support.
10.Roll back the mouse driver to the previous version if updated recently.
11 .Remove and reinstall the mouse driver.
12.Check the Device Manager to determine that:
• The device is properly installed. There are no red Xs or yellow exclamation marks. 
• There are no device conflicts. 
• No hardware is listed under Other Devices.
13.If the Issue is still not resolved, see “Online Support Information” on page 243.
Other Failures
If the CRT Switch, Dock, LAN Port, external MIC or Speakers, PCI Express Card, 5-in-1 Card Reader or 
Volume Wheel fail, perform the following general steps to correct the problem. Do not replace a non-defective 
FRUs:
1.Check Drive whether is OK.
2.Check Test Fixture is ok.
3.Swap M/B to Try. 
						

							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 error is detected, replace the FRU. Rerun the test to verify that there are no more errors. 
Undetermined Problems
The diagnostic problems does not identify which adapter or device failed, which installed devices are incorrect, 
whether a short circuit is suspected, or whether the system is inoperative. 
Follow these procedures to isolate the failing FRU (do not isolate non-defective FRU).
NOTE: Verify that all attached devices are supported by the computer.
NOTE: Verify that the power supply being used at the time of the failure is operating correctly. (See “Power On 
Issue” on page 130.):
1.Power-off the computer.
2.Visually check them for damage. If any problems are found, replace the FRU.
3.Remove or disconnect all of the following devices:
• Non-Acer devices
• Printer, mouse, and other external devices
•Battery pack
• Hard disk drive
•DIMM 
• CD-ROM/Diskette drive Module
• PC Cards
4.Power-on the computer.
5.Determine if the problem has changed.
6.If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
7.If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU:
• System board
• LCD assembly 
						

							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 Name (Include 
PostCode.h)PhasePost
CodeDescription
SEC_SYSTEM_POWER_ON SEC 1 CPU power on and switch to 
Protected mode
SEC_BEFORE_MICROCODE_PATCH SEC 2 Patching CPU microcode
SEC_AFTER_MICROCODE_PATCH SEC 3 Setup Cache as RAM
SEC_ACCESS_CSRSEC4PCIE MMIO Base Address initial
SEC_GENERIC_MSRINITSEC5CPU Generic MSR initialization
SEC_CPU_SPEEDCFGSEC6Setup CPU speed
SEC_SETUP_CAR_OK SEC 7 Cache as RAM test
SEC_FORCE_MAX_RATIOSEC8Tune CPU frequency ratio to 
maximum level
SEC_GO_TO_SECSTARTUP SEC 9 Setup BIOS ROM cache
SEC_GO_TO_PEICORE SEC 0A Enter Boot Firmware Volume 
						

							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
PEI_SB_REG_INIT PEI 76 South Bridge Early Initialization
PEI_PCIE_TRAININGPEI77PCIE Training
PEI_TPM_INIT PEI 78 TPM Initialization
PEI_SMBUS_INIT PEI 79 SMBUS Early Initialization
PEI_PROGRAM_CLOCK_GEN PEI 7A Clock Generator Initialization
PEI_IGD_EARLY_INITIALPEI7BInternal Graphic device early 
Initialization
PEI_HECI_INITPEI7CHECI Initialization
PEI_WATCHDOG_INITPEI7DWatchdog timer Initialization
PEI_MEMORY_INIT PEI 7E Memory Initial for Normal boot.
PEI_MEMORY_INIT_FOR_CRISIS PEI 7F Memory Initial for Crisis Recovery
PEI_MEMORY_INSTALL PEI 80Simple Memory test
PEI_TXTPEIPEI81TXT function early Initialization
PEI_SWITCH_STACK PEI 82 Start to use Memory
PEI_MEMORY_CALLBACK PEI 83 Set cache for physical memory
PEI_ENTER_RECOVERY_MODE PEI 84 Recovery device Initialization
PEI_RECOVERY_MEDIA_FOUND PEI85 Found Recovery image
PEI_RECOVERY_MEDIA_NOT_FOUND PEI 86 Recovery image not found
PEI_RECOVERY_LOAD_FILE_DONE PEI 87 Load Recovery Image completed
PEI_RECOVERY_START_FLASH PEI 88 Start Flash BIOS with Recovery 
image
PEI_ENTER_DXEIPL PEI 89 Loading BIOS image to RAM
PEI_FINDING_DXE_CORE PEI8A Loading DXE core
PEI_GO_TO_DXE_CORE PEI8B Enter DXE core 
						

							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 I/O DXE initialization
DXE_LEGACY_REGIONDXE47Setup Legacy Region service
DXE_SB_INITDXE48South Bridge Middle initialization
DXE_IDENTIFY_FLASH_DEVICE DXE 49 Identify Flash device
DXE_FTW_INIT DXE 4A Fault Tolerant Write verification
DXE_VARIABLE_INIT DXE 4B Variable Service initialization
DXE_VARIABLE_INIT_FAIL DXE 4C Fail to initial Variable Service
DXE_MTC_INIT DXE 4D MTC Initial
DXE_CPU_INIT DXE 4E CPU Middle Initialization
DXE_MP_CPU_INIT DXE 4F Multi-processor 
MiddleInitialization
DXE_SMBUS_INIT DXE 50 SMBUS Driver Initialization
DXE_SMART_TIMER_INIT DXE 51 8259 Initialization
DXE_PCRTC_INIT DXE 52 RTC Initialization
DXE_SATA_INITDXE53SATA Controller earlyInitialization
DXE_SMM_CONTROLER_INITDXE54Setup SMM Control service
DXE_LEGACY_INTERRUPTDXE55Setup Legacy Interrupt service
DXE_RELOCATE_SMBASE DXE 56 Relocate SMM BASE
DXE_FIRST_SMI DXE 57 SMI test
DXE_VTD_INITDXE58VTD Initial
DXE_BEFORE_CSM16_INIT DXE 59 Legacy BIOS Initialization
DXE_AFTER_CSM16_INIT DXE 5A Legacy interrupt function 
Initialization
DXE_LOAD_ACPI_TABLE DXE 5B ACPI Table Initialization
DXE_SB_DISPATCHDXE5CSetup SB SMM Dispatcher 
service
DXE_SB_IOTRAP_INITDXE5DSetup SB IOTRAP Service
DXE_SUBCLASS_DRIVERDXE5EBuild AMT Table
DXE_PPM_INITDXE5FPPM Initialization
DXE_HECIDRV_INITDXE60HECIDRV Initialization 
						

							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 17 Video device initialization
BDS_CONNECT_STD_ERR BDS 18 Error report device initialization
BDS_CONNECT_USB_HC BDS 19 USB host controller initialization
BDS_CONNECT_USB_BUS BDS 1A USB BUS driver initialization
BDS_CONNECT_USB_DEVICE BDS 1B USB device driver initialization
BDS_NO_CONSOLE_ACTION BDS 1C Console device initial fail
BDS_DISPLAY_LOGO_SYSTEM_INFO BDS 1D Display logo or system information
BDS_START_IDE_CONTROLLER BDS 1E IDE controller initialization
BDS_START_SATA_CONTROLLER BDS 1F SATA controller initialization
BDS_START_ISA_ACPI_CONTROLLER BDS20 SIO controller initialization
BDS_START_ISA_BUS BDS 21 ISA BUS driver initialization
BDS_START_ISA_FDD BDS 22 Floppy device initialization
BDS_START_ISA_SEIRAL BDS 23 Serial device initialization
BDS_START_IDE_BUS BDS 24 IDE device initialization
BDS_START_AHCI_BUS BDS 25 AHCI device initialization
BDS_CONNECT_LEGACY_ROM BDS 26 Dispatch option ROMs
BDS_ENUMERATE_ALL_BOOT_OPTION BDS 27 Get boot device information
BDS_END_OF_BOOT_SELECTION BDS 28 End of boot selection
BDS_ENTER_SETUP BDS 29 Enter Setup Menu
BDS_ENTER_BOOT_MANAGER BDS 2A Enter Boot manager
BDS_BOOT_DEVICE_SELECT BDS 2BTry to boot system to OS
BDS_EFI64_SHADOW_ALL_LEGACY_RO
MBDS 2C Shadow Misc Option ROM
BDS_ACPI_S3SAVE BDS 2D Save S3 resume required data in 
RAM
BDS_READY_TO_BOOT_EVENT BDS 2E Last Chipset initial before boot to 
OS
BDS_GO_LEGACY_BOOT BDS 2F Start to boot Legacy OS
BDS_GO_UEFI_BOOT BDS 30 Start to boot UEFI OS
BDS_LEGACY16_PREPARE_TO_BOOT BDS 31 Prepare to Boot to Legacy OS
BDS_EXIT_BOOT_SERVICESBDS32Send END of POST Message to 
ME via HECI
BDS_LEGACY_BOOT_EVENT BDS 33 Last Chipset initial before boot to 
Legacy OS.
BDS_ENTER_LEGACY_16_BOOT BDS 34 Ready to Boot Legacy OS. 
						

							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
POST_BDS_JUMP_BOOT_SECTOR POST_BDS FE Try to Boot with INT 19
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
POST_BDS_JUMP_BOOT_SECTOR POST_BDS FE Try to Boot with INT 19
Functionality Name (Include\ PostCode.h)PhasePost
CodeDescription
ASL_ENTER_S1 ASL 51 Prepare to enter S1
ASL_ENTER_S3 ASL 53 Prepare to enter S3
ASL_ENTER_S4 ASL 54 Prepare to enter S4
ASL_ENTER_S5 ASL 55 Prepare to enter S5
ASL_WAKEUP_S1 ASL E1 System wakeup from S1
ASL_WAKEUP_S3 ASL E3 System wakeup from S3
ASL_WAKEUP_S4 ASL E4 System wakeup from S4
Functionality Name (Include 
PostCode.h)PhasePost
CodeDescription
SMM_IDENTIFY_FLASH_DEVICE SMM 0xA0Identify Flash device in SMM
SMM_SMM_PLATFORM_INIT SMM0xA2 SMM service initial
SMM_ACPI_ENABLE_START SMM 0xA6OS call ACPI enable function
SMM_ACPI_ENABLE_END SMM 0xA7 ACPI enable function complete
SMM_S1_SLEEP_CALLBACK SMM 0xA1 Enter S1
SMM_S3_SLEEP_CALLBACK SMM 0xA3 Enter S3
SMM_S4_SLEEP_CALLBACK SMM 0xA4 Enter S4
SMM_S5_SLEEP_CALLBACK SMM 0xA5 Enter S5
Functionality Name (Include 
PostCode.h)PhasePost
CodeDescription 
						

							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 Insyde debugger 0xD4 DDT Cable become low speed device
Used by Insyde debugger 0xD5 DDT Cable Transmission Error (Get descriptor fail)
Used by Insyde debugger 0xD6 DDT Cable Transmission Error (Set Debug mode fail)
Used by Insyde debugger 0xD7 DDT Cable Transmission Error (Set address fail)
Functionality Name (Include 
PostCode.h)PhasePost
CodeDescription 
						

							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 Board (FFC)
Chapter 5 
						

							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