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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1257, 1260, 1262, 1266, and 1267
United States June 27, 104
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Maintenance & Service Guide
Presario 1200 Series
Models: 1255, 1257, 1260, 1262, 1266, and 1267
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Specifications
System I/O Address
System I/O Address
I/O Address (Hex)
System Function (Shipping
Configuration)
x0000 - x000F Direct memory access controller
x0020 - x0021 Programmable interrupt controller
x0022 - x0024 Motherboard resources
x0040 - x0043 System timer
x0060 - x0060
Standard 101/102-Key or Microsoft
Natural Keyboard
x0061 - x0061 System speaker
x0064 - x0064
Standard 101/102-Key or Microsoft
Natural Keyboard
x0070 - x0071 System CMOS/real time clock
x0080 - x0080 Motherboard resources
x0081 - x008F Direct memory access controller
x0092 - x0092 Motherboard resources
x00A0 - x00A1 Programmable interrupt controller
x00C0 - x00DF Direct memory access controller
x00EC - x00EF Motherboard resources
x00F0 - x00FF Numeric data processor
x0170 - x0177
Opti Viper Max Dual PCI IDE
Controller
x0170 - x0177 Secondary IDE controller (dual fifo)
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