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
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) |
01F0H -
01F7H |
Opti Viper Max
Dual PCI IDE Controller |
01F0H -
01F7H |
Primary IDE
controller (dual fifo) |
0220H -
022FH |
ES1869 Plug and
Play AudioDrive |
02F8H -
02FFH |
Compaq Presario
56K-DF |
0330H -
0331H |
ES1869 Plug and
Play AudioDrive |
0370H -
0371H |
Motherboard
resources |
0376H -
0376H |
Opti Viper Max
Dual PCI IDE Controller |
0376H -
0376H |
Secondary IDE
controller (dual fifo) |
0378H -
037FH |
Printer Port
(LPT1) |
0388H -
038BH |
ES1869 Plug and
Play AudioDrive |
03B0H -
03BBH |
NeoMagic
MagicGraph 128XD |
03C0H -
03DFH |
NeoMagic
MagicGraph 128XD |
03F0H -
03F5H |
Standard Floppy
Disk Controller |
03F6H -
03F6H |
Opti Viper Max
Dual PCI IDE Controller |
03F6H -
03F6H |
Primary IDE
controller (dual fifo) |
03F7H -
03F7H |
Standard Floppy
Disk Controller |
03F8H -
03FFH |
Communications
Port (COM1) |
040BH -
040BH |
Motherboard
resources |
0480H -
048FH |
Motherboard
resources |
04D6H -
04D6H |
Motherboard
resources |
0800H - 0807H |
ES1869 Control
Interface |
0CF8H - 0CFFH |
PCI bus |
FCF0H - FCF7H |
Primary IDE
Controller (dual fifo) |
FCF0H - FCFFH |
Opti Viper Max
Dual PCI IDE Controller |
FCF8H - FCFFH |
Secondary IDE
Controller (dual fifo) |
Return to the index list of Specifications.
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Revised: 25 February 1999
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