Acer X3950, X5950 manual Module

Page 66

Checkpoint

Description

 

 

31

Allocate memory for ADM module and uncompress it. Give control to ADM module

 

for initialization. Initialize language and font modules for ADM. Activate ADM

 

module.

 

 

33

Initializes the silent boot module. Set the window for displaying text information.

 

 

37

Displaying sign-on message, CPU information, setup key message, and any OEM

 

specific information.

 

 

38

Initializes different devices through DIM. See DIM Code Checkpoints section for

 

more information. USB controllers are initialized at this point.

 

 

39

Initializes DMAC-1 & DMAC-2.

 

 

3A

Initialize RTC date/time.

 

 

3B

Test for total memory installed in the system. Also, Check for DEL or ESC keys to

 

limit memory test. Display total memory in the system.

 

 

3C

Mid POST initialization of chipset registers.

 

 

40

Detect different devices (Parallel ports, serial ports, and coprocessor in CPU, ...

 

etc.) successfully installed in the system and update the BDA, EBDA…etc.

 

 

50

Programming the memory hole or any kind of implementation that needs an

 

adjustment in system RAM size if needed.

 

 

52

Updates CMOS memory size from memory found in memory test. Allocates

 

memory for Extended BIOS Data Area from base memory. Programming the

 

memory hole or any kind of implementation that needs an adjustment in system

 

RAM size if needed.

 

 

60

Initializes NUM-LOCK status and programs the KBD typematic rate.

 

 

75

Initialize Int-13 and prepare for IPL detection.

 

 

78

Initializes IPL devices controlled by BIOS and option ROMs.

 

 

7A

Initializes remaining option ROMs.

 

 

7C

Generate and write contents of ESCD in NVRam.

 

 

84

Log errors encountered during POST.

 

 

85

Display errors to the user and gets the user response for error.

 

 

87

Execute BIOS setup if needed / requested. Check boot password if installed.

 

 

8C

Late POST initialization of chipset registers.

 

 

8D

Build ACPI tables (if ACPI is supported)

 

 

8E

Program the peripheral parameters. Enable/Disable NMI as selected.

 

 

90

Late POST initialization of system management interrupt.

 

 

A0

Check boot password if installed.

 

 

A1

Clean-up work needed before booting to OS.

 

 

A2

Takes care of runtime image preparation for different BIOS modules. Fill the free

 

area in F000h segment with 0FFh. Initializes the Microsoft IRQ Routing Table.

 

Prepares the runtime language module. Disables the system configuration display if

 

needed.

 

 

A4

Initialize runtime language module. Display boot option popup menu.

 

 

A7

Displays the system configuration screen if enabled. Initialize the CPU’s before

 

boot, which includes the programming of the MTRR’s.

 

 

A8

Prepare CPU for OS boot including final MTRR values.

 

 

A9

Wait for user input at config display if needed.

 

 

AA

Uninstall POST INT1Ch vector and INT09h vector. Deinitializes the ADM module.

 

 

AB

Prepare BBS for Int 19 boot.

 

 

AC

End of POST initialization of chipset registers.

 

 

58

Chapter 4

Image 66
Contents Acer Aspire X3950/X5950 Service Guide Revision History Copyright Disclaimer Conventions Service Guide Coverage Table of Contents System Block Diagram and Board Layout Features ChapterPorts Power supplyDimension and weight Operating system and softwareX3950 System ComponentsFront Panel Icon ComponentX5950 Rear Panel Internal Components System LED Indicators LED indicator Color LED status DescriptionChapter Cmos Setup Utility System UtilitiesEntering Cmos setup Navigating Through the Setup UtilitySetup Utility Menus Product Information Parameter DescriptionStandard Cmos Features Parameter Description OptionAdvanced Bios Features LANAdvanced Chipset Features EistIntegrated Peripherals AhciPower Management Setup PC Health Status VbatFrequency/Voltage Control Bios Security Features Setting a system passwordRemoving a system password Load Default Settings Save & Exit Setup Exit Without Saving System Disassembly Disassembly RequirementsPre-disassembly Procedure Main Unit Disassembly X3950 modelX5950 model Removing the Side Panel Removing the Front Bezel Page Removing the Heatsink Fan Assembly Page Removing the Processor Page Removing the Optical Drive Remove the two screws C that secure the optical drive Slide the optical drive out of the bracket Removing the Hard Disk Drive Removing the Power Supply Lift the power supply module off the unit X3950 Removing the Memory Modules Removing an Expansion Card To remove a network cardTo remove a VGA card To remove a TV tuner card Removing the Front I/O and Card Reader Boards Pull the board out of the bracket Chapter Pull the I/O board out of the bracket Removing the Mainboard Lift the board off the housing Removing the Top Bezel Chapter System Troubleshooting Hardware Diagnostic ProcedureSystem External Inspection System Check ProceduresPower System Check System Internal InspectionCheckpoints Viewing Bios checkpointsBootblock Initialization Code Checkpoints Checkpoint DescriptionBootblock Recovery Code Checkpoints Post Code Checkpoints Module DIM Code Checkpoints Acpi Runtime CheckpointsMemory Error MessagesBoot Message Displayed DescriptionStorage Device Virus Related System Configuration EpromCmos MiscellaneousCPU eModule Error Messages USB eModule Error MessagesSmbios eModule Error Messages MPS Table Multi-processor eModule Error MessagesBeep Symptom Cause and Description Beep CodesIndex of Symptom-to-FRU Error Message Diskette Drive-Related Symptoms Symptom / Error Action/FRU Hard Disk Drive-Related Symptoms Symptom / Error Action/FRU CD/DVD-ROM Drive-Related Symptoms Symptom / Error Action/FRUReal-Time Clock-Related Symptoms Symptom / Error Action/FRU Audio-Related Symptoms Symptom / Error Action/FRUModem-Related Symptoms Symptom / Error Action/FRU Some or all keys on keyboard do not work  Keyboard Bios Recovery Select Save & Exit Setup, then press Enter Undetermined Problems System Block Diagram and Board Layout System Block DiagramMainboard Layout Code DescriptionPWR1 Chapter FRU Field Replaceable Unit List Exploded Diagram X3950 modelX5950 model X3950 FRU List System model PV.SE602.004 AX3950 AAP AJC PV.SE602.004CPU/PROCESSOR System model PT.SE602.003 AX3950 AAP ACS PT.SE602.003 Speaker Speaker Chiamaw 9M-20A200-000 Acer Logo LF System model PT.SE602.004 AX3950 AAP ACS PT.SE602.004 Front Bezel W/LED Switch Cable for TBD CPU/PROCESSOR System model PT.SE602.005 AX3950 AAP ACS PT.SE602.005 KH.01K01.007 X5950 FRU List System model 91.3CY01.002G Aagassi PVT/MVB SKU AX5950Front Bezel for Speaker Speaker USB Neosonica NEW Silver Color AC-MT-113 Specification Appendix aSystem Bios VGA Interface BD Combo Module Specification Keyboard and Input DevicesBdmv Aacs Super Multi Specification PcavDVD-R 2x / 4x CLV, 2.4x~6x Appendix a 100