Acer M5802(G) manual Initializes DMAC-1 & DMAC-2

Page 53

Checkpoint

Description

 

 

38

Initializes different devices through DIM. See DIM Code Checkpoints section of document

 

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.

 

 

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.

 

 

Chapter 4

45

Image 53
Contents Acer Aspire M5802G Service Guide Revision History Copyright Disclaimer Conventions Service Guide Coverage Table of Contents Viii Chapter FeaturesHard disk On-Board Graphic solutionOptical disk Graphics cardPower supply System BiosUSB ports Extension slotBlock Diagram Component System ComponentsFront Panel Rear Panel Specification Hardware Specifications and ConfigurationsIOS Hotkey List Main Board Major ChipsSystem Memory Memory CombinationsAudio Interface Slot Memory Total MemorySata Interface Power ManagementUSB Port Environmental RequirementsDevice Standby Mode Power Management FunctionACPI support functionGlobal Standby Mode Suspend ModeSystem Utilities Cmos Setup UtilityNavigating Through the Setup Utility Entering Cmos setupParameter Description Setup Utility MenusProduct Information Parameter Description Option Standard Cmos FeaturesEnabled Advanced Bios FeatureAdvanced Chipset Features Integrated Peripherals Power Management Setup PC Health Status Frequency/Voltage Control Setting a supervisor password Bios Security FeaturesLoad Default Settings Exit Without Saving Save & Exit SetupDisassembly Requirements System DisassemblyPre-disassembly Procedure Removing the Side Panel Removing the Heat Sink Fan Assembly Removing the Processor Removing the VGA Card Removing the TV Card Removing the Mode CardRemoving the Hard Disk Drive Page Removing the Front Bezel Removing the Optical Drive Powe-Led Cable HDD Cable ODD Cable Removing CablesRemove System FAN Removing the Power Supply Removing the Memory Modules Removing the Mainboard System Troubleshooting Checkpoint Description Power-On Self-Test PostE1-E8 EC-EE Bootblock Recovery Code CheckpointsBoth the 8259 compatible PICs in the system Initializes DMAC-1 & DMAC-2 DIM Code Checkpoints Cmos Post Error Messages ListMessage Description Displayed Basic No ROMAtapi DMA Description DisplayedVirus PCI IRQ NvramPCI ROM INS MiscellaneousMessage Displayed Description USB eModule Error MessagesError Symptom Action/FRU Processor / Processor Fan Error Symptoms ListMain board and Memory PostCD/DVD-ROM Drive Error Symptom Action/FRUHard Disk Drive Audio Real-time clockModem Video and MonitorKeyboard Power SupplyOther Problems Dimm Undetermined ProblemsPlacement Jumper and Connector InformationLabel Description Setting Jumper Jumper SettingInternal header pin definition Jumper/Header Name Function DefinitionSYS FAN Header ResetFront Panel Header SATALED+ Acpiled Sataled Pwrled PwrswFront USB Header USBVCC4 USBVCC3PORT-EL Spdif HeaderConnector Name Function Definition Connector pin definitionGreen VGA ConnBlue Vdacsdat4AUGND2 USB+LAN Conn8AUGND2 19LANLED2 20LANLED1SATA2RXN SATA2RXP SATA2TXP SATA2TXNSATA3TXP SATA3TXN SATA3RXN SATA3RXP4VCC 16ATXPSONL Atxpower Conn5GND 6VCCFRU Field Replaceable Unit List Aspire M5802 Exploded Diagram Name Type ’TY Category Description Part Number Aspire M5802 FRU ListHDD NEW PCB W/ATX BKT Rohs Speaker Category Description Part Number Category Description Part Number Category Description Part Number Category Description Part Number Category Description Part Number Create Sata RAID IntelR Matrix Storage Manager option ROMChapter Page Create Sata RAID Create Sata RAID 0+1 Chapter IntelR Matrix Storage Console Intel RAID SOP Windows for WIN7Chapter Picture6 Select Menber Hard Drives Picture7 Chapter Chapter Page Chapter Page Chapter Page Chapter

M5802(G) specifications

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