System I/O Addresses

Specifications

Table 6-15

I/O Address (hex) System Function (shipping configuration)

000	- 00F	DMA controller no. 1

010	- 01F	Unused

020	- 021	Interrupt controller no. 1

022	- 024	Opti chipset configuration registers

025	- 03F	Unused

02E - 02F		87334 “Super I/O” configuration for CPU

040	- 05F	Counter/timer registers

044	- 05F	Unused

060		Keyboard controller

061		Port B

062 - 063		Unused

064		Keyboard controller

065	- 06F	Unused

070 - 071		NMI enable/real time clock

072	- 07F	Unused

080	- 08F	DMA page registers

090 - 091		Unused

092		Port A

093	- 09F	Unused

0A0 - 0A1		Interrupt controller no. 2

6–16	Maintenance and Service Guide

Evo N800c Series, Evo N800w Series, Presario 2800, Evo N800v Series specifications

The Compaq Evo N800 series and Presario 2800 series represent a blend of portability, performance, and versatility suited primarily for business and educational environments during the early 2000s. These laptops were designed to meet the demands of users requiring reliable computing on the go.

The Compaq Evo N800v series is particularly notable for its robust design, featuring a magnesium alloy chassis that contributes to durability while maintaining a relatively lightweight profile. This series is powered by Intel’s Pentium 4 processors, offering solid performance for multitasking and running various applications. Equipped with a 15-inch TFT display, the N800v provided crisp visuals, making it suitable for presentations and prolonged work sessions. The inclusion of an expansive keyboard and touchpad also enhanced the user experience, facilitating easier navigation and typing.

The Evo N800w series followed closely, catering to users requiring wireless connectivity. Its integrated Wi-Fi capabilities allowed users to connect to networks effortlessly, promoting productivity in mobile and flexible work environments. The series also boasted multiple USB ports, providing connectivity options for various peripherals such as printers and external drives. Security was not overlooked, as many models in this series included features such as Smart Card readers and fingerprint scanners to protect sensitive information.

The Evo N800c series distinguished itself with its focus on expandability and upgrade options. Users could enhance their laptops with additional RAM and larger hard drives, accommodating the increasing need for storage in professional settings. This series was often favored for its business-class support services and reliability, streamlining IT management in corporate environments.

Meanwhile, the Presario 2800 series catered more to the consumer market, blending entertainment and productivity. With vibrant displays and capable graphics options, the Presario series allowed for a comfortable multimedia experience, catering to casual gaming and video playback. The laptops featured integrated sound systems, enhancing the audio experience during media consumption.

Overall, the Compaq Evo N800 and Presario 2800 series provided a range of features and technological advancements that catered to diverse user needs, balancing performance, mobility, and security. Their design principles and functionality marked them as reliable choices in the competitive laptop market of their time, leaving a lasting legacy in portable computing.

Compaq Evo N800c Series, Evo N800w Series, Evo N800v Series, Presario 2800 System I/O Addresses

Models: Evo N800c Series Evo N800w Series Presario 2800 Evo N800v Series

System I/O Addresses

Evo N800c Series, Evo N800w Series, Presario 2800, Evo N800v Series specifications