HP Nc6400 - Compaq Business Notebook Maintenance And Service Guide

Specifications
Maintenance and Service Guide 6–13
I/O Address (hex) System Function (shipping configuration)
0A2 - 0BF Unused
0C0 - 0DF DMA controller no. 2
0E0 - 0EF Unused
0F0 - 0F1 Coprocessor busy clear/reset
0F2 - 0FF Unused
100 - 16F Unused
170 - 177 Secondary fixed disk controller
178 - 1EF Unused
1F0 - 1F7 Primary fixed disk controller
1F8 - 200 Unused
201 JoyStick (decoded in ESS1688)
202 - 21F Unused
220 - 22F Entertainment audio
230 - 26D Unused
26E - 26 Unused
278 - 27F Unused
280 - 2AB Unused
2A0 - 2A7 Unused
2A8 - 2E7 Unused
2E8 - 2EF Reserved serial port
Table 6-8
System I/O Addresses
(Continued)

HP Nc6400 - Compaq Business Notebook Specifications

General

Operating System	Windows XP Professional
Networking	10/100/1000 Gigabit Ethernet
Processor	Intel Core 2 Duo
RAM	Up to 4GB DDR2
Storage	80 GB HDD
Display	14.1-inch WXGA (1280 x 800)
Graphics	Intel GMA 950
Battery	6-cell Lithium Ion
Chipset	Intel 945GM Express
Optical Drive	DVD+/-RW
Wireless	Intel PRO/Wireless 3945ABG
Ports	3 USB 2.0, VGA, headphone, microphone, RJ-11, RJ-45
Slots	ExpressCard/54
Dimensions	13.1 x 9.3 x 1.2 in