Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275
Maintenance & Service Guide
Presario 1200 Series
Models: 1255, 1257, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275
| 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)
0000H - 000FH Direct memory access controller
0020H - 0021H Programmable interrupt controller
0022H - 0024H Motherboard resources
0040H - 0043H System timer
0060H - 0060H
Standard 101/102-Key or Microsoft
Natural Keyboard
0061H - 0061H System speaker
0064H - 0064H
Standard 101/102-Key or Microsoft
Natural Keyboard
0070H - 0071H System CMOS/real time clock
0080H - 0080H Motherboard resources
0081H - 008FH Direct memory access controller
0092H - 0092H Motherboard resources
00A0H - 00A1H Programmable interrupt controller
00C0H - 00DFH Direct memory access controller
00ECH - 00EFH Motherboard resources
00F0H - 00FFH Numeric data processor
0170H - 0177H
Opti Viper Max Dual PCI IDE
Controller
0170H - 0177H Secondary IDE controller (dual fifo)
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