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Specifications
System memory map specifications
Size
640 KB
128 KB
64 KB
64 KB
System interrupt specifications
Hardware IRQ
IRQ0
IRQ1
IRQ8
IRQ12
IRQ13
IRQ16
IRQ17*
IRQ18
IRQ19
IRQ20
IRQ21
IRQ22
*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.
✎
PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port
may assert IRQ3 or IRQ4.
✎
For operating systems after Windows 2000, APIC (advanced programming interrupt controller) is used.
6–4
Memory address
00000000–0009FFFF
000A0000–000BFFFF
000C0000–000CFFFF
000E8000–000FFFFF
00100000–XFFFFFFF
(X+1)0000000–FEDFFFFF
FED00000–FED003FF
FEE01000–FFFFFFFF
System function
System timer
Standard 101-/102-key or Microsoft natural keyboard
System CMOS/real-time clock
Synaptics PS/2 TouchPad
Numeric data processor
Intel ICH9 family USB universal host controller 2937
Mobile Intel 5 Series express chipset family
High-definition audio controller
Intel ICH9 family USB universal host controller 2938
Marvell Yukon 88E8072 PCIE-gigabit Ethernet controller
Intel ICH9 family USB universal host controller 2939
Intel ICH9 family USB universal host controller 2936
Intel ICH9 family USB2 enhanced controller 293C
Intel ICH9 family USB2 enhanced controller 293A
Intel ICH9 family USB universal host controller 2934
Intel ICH9M-E/M SATA AHCI controller
Intel ICH9 family USB universal host controller 2935
System function
Base memory
Video memory
Video BIOS
System BIOS
Extended memory (based on
memory installed)
PCI bus
High-precision event timer
PCI bus
Maintenance and Service Guide
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