Acer 250 manual IRQ Assignment Map, DMA Channel Assignment, Interrupt Channel Function

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IRQ Assignment Map

Interrupt Channel

Function

 

 

(ISA) 0

System timer

 

 

(ISA) 1

Keyboard

 

 

(ISA) 6

Keyboard

 

 

(ISA) 8

Standard floppy disk controller

 

 

(ISA) 9

System CMOS/real time clock

 

 

(ISA) 12

Synaptics PS/2 Port Pointing Device

 

 

(ISA) 13

Numeric data processor

 

 

(ISA) 14

Primary IDE Channel

 

 

(ISA) 15

Secondary IDE Channel

 

 

(PCI) 10

Agere Systems AC’97 Modem

 

 

(PCI) 10

Crystal WDM AC’97 Driver for ICH4

 

 

(PCI) 10

Intel (R) 82801DB/DBM SMBus Controller-24C3

 

 

(PCI) 10

Intel (R) 82801DB/DBM USB 2.0 Enhanced Host Controller-24CD

 

 

(PCI) 10

Texas Instruments PCI-1520 CardBus Controller

 

 

(PCI) 10

Texas Instruments PCI-1520 CardBus Controller

 

 

(PCI) 11

Intel (R) 82801DB/DBM USB Universal Host Controller-24C2

 

 

(PCI) 11

Intel (R) 82801DB/DBM USB Universal Host Controller-24C4

 

 

(PCI) 11

Intel (R) 82801DB/DBM USB Universal Host Controller-24C7

 

 

(PCI) 11

Intel (R) 82852/82855 GM/GME Graphics Controller

 

 

(PCI) 11

Realtek RTL8139/810x Family Fast Ethernet NIC

 

 

NOTE: IRQ settings may be changed by OS

DMA Channel Assignment

 

 

 

DMA Channel

Function

 

 

2

Standard floppy disk controller

 

 

3

ECP Printer Port (LPT1)

 

 

4

Direct memory access controller

 

 

Chapter 1

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Contents Acer TravelMate 240/250 Series Date Chapter Updates Revision HistoryCopyright DisclaimerConventions Screen messagesPreface Page Table of Contents Appendix C Online Support Information 146 Index 148 Table of Contents Features System IntroductionDisplay System Block Diagram ICH4-MBoard Layout Top ViewBottom View Panel Front PanelLeft Panel DescriptionIcon Item/ Port Description Icon Item/ Port Description Right Panel Rear Panel Icon Port DescriptionBottom Panel Indicators Icon Function DescriptionUnderstanding the icons Keyboard Special keysLock key Description Desired access Num lock on Num lock off Keys DescriptionHot Keys Click on the language tab and click on Details Launch Keys Processor for TravelMate Hardware Specifications and ConfigurationsSystem Board Major Chips Second Level Cache0MB System MemoryMemory Combinations DDR-DRAMFloppy Disk Drive Interface LAN InterfaceModem Interface MFMItems Specification Hard Disk Drive InterfaceCD-ROM Interface DVD-ROM Interface IDEDVD-9/DVD-R Combo Drive Interface Video Memory Audio InterfaceVideo Interface 8MBUSB Port Video Resolutions ModeParallel Port Pcmcia PortAPI BatteryDC-DC/Charger Converter SimploTX38D85VC1CAB DC-AC LCD InverterAC Adapter TFTHibernation Mode Power ManagementPower Saving Mode Phenomenon Standby Mode System Hibernation timer expiresMechanical Specification Environmental RequirementsMemory Address Map FEC10000-FEC1FFFF Address MapFEBFFC00-FEBFFFFF FF000000-FFFFFFFFAddress Map Interrupt Channel Function IRQ Assignment MapDMA Channel Assignment DMA Channel FunctionBios Setup Utility System UtilitiesNavigating the Bios Utility Information Parameter DescriptionMain Parameter Description Format/Option IRQ7/IRQ5 AdvancedParameter Description Options DMA3/DMA1Security Clear or Set Parameter Description OptionRemoving a Password Chapter Boot Exit Bios Flash Utility System Diagnostic DisketteChapter Machine Disassembly and Replacement General Information Before You BeginDisassembly Procedure Flowchart HDDScrew List Removing the Battery Removing the Memory Module Removing the Modem Board Removing the Hard Disk Drive Module Disassembling the Hard Disk Drive ModuleRemoving the LCD Module Removing the Middle CoverRemoving the Launch Board Removing the LCD Module Chapter Disassembling the LCD Module Removing the LCD BezelRemoving the Inverter Board 15 LCD Removing the 15 TFT LCD Removing the LCD BracketsRemoving the LCD Coaxial Cable Removing the LCD HingesPage Removing the Keyboard Removing the RTC BatteryDisassembling the Main Unit Removing the MimiPCI Card PlateRemoving the Thermal Module Removing the ProcessorInstalling the Processor Removing the Upper Case AssemlyRemoving the Touchpad Board Removing the Touchpad CableRemoving the Floppy Disk Drive Module Dissembling the Floppy Disk Drive ModuleRemoving the VGA Heatsink Plate Removing the CPU Heatsink PlateRemoving the ODD Module1 Removing the ODD Module2Removing the HDD Bracket Removing the Main Board Removing the DC BoardRemoving the I/O Port Bracket Removing the Pcmcia SlotRemoving the Speaker Set System Upgrade Procedure Base Unit to Wireless UnitInstalling the Pcmcia Slot Installing the Speaker SetInstalling the DC Board Installing the Main BoardInstalling the HDD Bracket Installing the ODD ModuleInstalling the CPU Heatsink Plate Installing the VGA Heatsink PlateInstalling the Floppy Disk Drive Module Installing the Touchpad CableInstalling the Touchpad Board Installing the Upper Case Assemly Installing the Thermal Module Installing the MimiPCI Card Plate Installing the RTC Battery Installing the KeyboardPage Installing the LCD Brackets Installing the LCD HingesInstalling the LCD Coaxial Cable Assembling the LCD ModuleInstalling the 15 TFT LCD Installing the Inverter Board 15 LCDInstalling the LCD Bezel Page Installing the LCD Module Installing the LCD ModuleInstalling the Launch Board Installing the Middle Cover TravelMate 240 Installing the Hard Disk Drive Module Removing the Modem Board Installing the Memory Module Installing the Battery Troubleshooting Symptoms Verified Go ToExternal CD-ROM Drive Check System Check ProceduresExternal Diskette Drive Check Keyboard or Auxiliary Input Device CheckPower System Check Memory checkCheck the Power Adapter Check the Battery Pack Touchpad CheckPower-On Self-Test Post Error Message Error Message List Index of Error MessagesError Code List Error Codes Error MessagesCmos Dimm CPU IDNo beep Error Messages FRU/Action in Sequence CRTPost Codes Code Beeps Post Routine DescriptionChapter 104 Code Beeps Post Routine Description Code Beeps For Boot Block in Flash ROM Indicator-Related Symptoms Index of Symptom-to-FRU Error MessageLCD-Related Symptoms Power-Related SymptomsSpeaker-Related Symptoms PCMCIA-Related SymptomsMemory-Related Symptoms Power Management-Related SymptomsPeripheral-Related Symptoms Keyboard/Touchpad-Related SymptomsModem-Related Symptoms Intermittent Problems Undetermined Problems DimmJumper and Connector Locations LOUT1 LIN1FAN1 SW1 RJ1SW1 Settings 115 TravelMate 240 FRU Field Replaceable Unit List TravelMate 240/250 Exploded Diagram MAH Simplo W/ Cover Battery LI-ION 8CELL 2.0 MAH RTC BatteryBattery Module LI-ION 8CELL Wireless LAN Board 802.11BModem Board 56K Ambit Cover Switch CableLaunch Board Touchpad CableOptical Drive Support Switch Cable & Touchpad ModuleHinge CAP Left Bracket HDD BracketTouchpad Cover Wireless Antenna RightBlack Wireless Antenna Left Middle Cove W/LAUNCHFDD Drive 1.44M MCI JU FDD Module 1.44M MCI JUFDD Module 1.44M Mitsumi FDD Drive 1.44M MitsumiSeagate ST94011A Moraga IC25N040ATMR04-0Toshiba Neptune MK4021GAS Fujitsu V-40 MHT2040ATNSK-AC602 Taiwan Keyboard 85KEY Darfon Keyboard 84KEY DarfonNSK-AC61D US-INT Keyboard 84KEY Darfon NSK-AC60S Spanish Keyboard 84KEY DarfonLCD Coaxial Cable Modem & Modem Cable Pcmcia Slot & RTC BatteryInverter Cable LCD Panel W/HINGE & LogoLCD Screw Rubber Lower Touchpad KnobLCD Screw Rubber Upper Rubber FootMemory DDR333 512MB Elpedia W30256AAEPI652A Memory DDR333 256MBMocron MT8VDDT3264HDG Infineon HYS64D64020GBDL-6Chapter 128 129 TravelMate 240/250 Model Battery Wireless NumberModel Name Definition Memory131 TravelMate 240 Test Compatible Components Specifications Microsoft Windows XP Environment TestXGA TFT QSI SBW-242 Simplo BTP-58A1 Assy BTY PK LI+2.0MAH 8C OptionIsdn Pcmcia Pcmcia ATA Pcmcia USB PCMCIA-SCSIMicrosoft Windows 2000 Environment Test Appendix B 138 139 TravelMate 240/250 Appendix B 140 Microsoft Windows 98 Environment Test Appendix B 142 143 TravelMate 240/250 Appendix B 144 145 TravelMate 240/250 Online Support Information 147 Index Pcmcia Windows 98 Environment Test Index 150
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