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Hardware Specifications and Configurations
1-43
System Interrupt Specification
Hardware IRQ
System Function
IRQ0 System
timer
IRQ1
Standard 101-/102-Key or Microsoft® Natural Keyboard
IRQ2 Cascaded
IRQ3 Hudson-M1
define
IRQ5*
Conexant AC-Link Audio Intel 82801DB/DBM SMBus
Controller-24C3 Data Fax
Modem with SmartCP
IRQ6 Diskette
drive
IRQ7* Parallel
port
IRQ8
System CMOS/real-time clock
IRQ9* Microsoft
ACPI-compliant
system
IRQ10*
Intel USB UHCI controller-24C2
Intel 82852/82855 GM/GME Graphic Controller
Realtek RTL8139 Family PCI Fast Ethernet Controller
IRQ11
Intel USB EHCI controller-24CD
Intel USB UHCI controller-24C4
Intel USB UHCI controller-24C7
Intel Pro/Wireless 2200BG
TI OHCI 1394 host controller
TI PCI1410 CardBus controller
IRQ12
Synaptics PS/2 Touchpad
IRQ13
Numeric data processor
IRQ14
Primary IDE channel
IRQ15
Secondary IDE channel
*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.
NOTE:
Express Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the
infrared or the serial port may assert IRQ3 or IRQ4.
Summary of Contents for ASPIRE 4253
Page 1: ...Aspire 4253 4253G SERVICEGUIDE ...
Page 10: ...x ...
Page 11: ...CHAPTER 1 Hardware Specifications ...
Page 14: ...1 4 ...
Page 56: ...1 46 Hardware Specifications and Configurations ...
Page 57: ...CHAPTER 2 System Utilities ...
Page 84: ...2 28 System Utilities ...
Page 85: ...CHAPTER 3 Machine Maintenance Procedures ...
Page 88: ...3 4 ...
Page 110: ...3 26 Machine Maintenance Procedures ID Size Quantity Screw Type C M2 5 3 0 Ni 1 ...
Page 129: ...CHAPTER 4 Troubleshooting ...
Page 151: ...CHAPTER 5 Jumper and Connector Locations ...
Page 158: ...5 8 Jumper and Connector Locations ...
Page 159: ...CHAPTER 6 FRU Field Replaceable Unit List ...
Page 160: ...6 2 Exploded Diagrams 6 4 FRU List 6 7 Screw List 6 20 ...
Page 179: ...CHAPTER 7 Model Definition and Configuration ...
Page 180: ...1 2 Acer 4255 7 1 Aspire 4253G 7 22 ...
Page 212: ...7 32 Model Definition and Configuration ...
Page 213: ...CHAPTER 8 Test Compatible Components ...
Page 214: ...8 2 Microsoft Windows 7 Environment Test 8 4 ...
Page 223: ...CHAPTER 9 Online Support Information ...
Page 224: ...9 2 Introduction 9 3 ...
Page 226: ...9 4 Online Support Information ...