I/O address (hex)

System function (shipping configuration)

 

 

 

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

 

 

2F0 - 2F7

Unused

 

 

 

300

- 31F

Unused

 

 

 

320

- 36F

Unused

 

 

 

370

- 377

Secondary diskette drive controller

 

 

 

378

- 37F

Parallel port (LPT1/default)

 

 

 

380

- 387

Unused

 

 

 

388

- 38B

FM synthesizer—OPL3

 

 

38C - 3AF

Unused

 

 

3B0 - 3BB

VGA

 

 

3BC - 3BF

Reserved (parallel port/no EPP support)

 

 

3C0 - 3DF

VGA

 

 

3E0 - 3E1

PC Card controller in CPU

 

 

3E2 - 3E3

Unused

 

 

3E8 - 3EF

Internal modem

 

 

3F0 - 3F7

“A” diskette controller

 

 

3F8 - 3FF

Serial port (COM1/default)

 

 

CF8 - CFB

PCI configuration index register (PCIDIVO-1)

 

 

CFC - CFF

PCI configuration data register (PCIDIVO-1)

 

 

 

System I/O address specifications—Intel processors 101

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HP CQ40-152XX, CQ40-300, CQ40-151XX, CQ40-201XX, CQ40-148TU, CQ40-120TU System I/O address specifications-Intel processors

CQ40-105TU, CQ40-109AX, CQ40-111AU, CQ40-114AU, CQ40-300 specifications

The HP CQ40 series laptops, including models like CQ40-120AU, CQ40-120AX, CQ40-131TU, CQ40-129AU, and CQ40-134TU, represent a blend of performance and versatility tailored for everyday computing needs. These laptops, which were released in the mid-2000s, are characterized by their solid build quality, a user-friendly experience, and a range of features that cater to both students and professionals.

One of the standout features of the CQ40 series is its display. Most models in this lineup boast a 14.1-inch diagonal widescreen display with a standard resolution of 1280x800 pixels. This display size strikes a balance between mobility and usability, making it easy to transport while still providing ample screen real estate for work and entertainment.

Performance-wise, the CQ40 series is equipped with a variety of Intel and AMD processors, depending on the specific model. The processors offer a mix of efficiency and performance, making them suitable for everyday tasks such as web browsing, document editing, and media playback. With RAM options typically ranging from 2GB to 4GB, users can expect smooth multi-tasking capabilities.

Storage options in the CQ40 series include hard drives with capacities that generally range from 250GB to 320GB. This storage provides adequate space for files, applications, and media, ensuring users can keep their important documents within easy reach.

In terms of connectivity, the CQ40 laptops are equipped with multiple USB ports, HDMI outputs, and audio jacks, allowing for easy peripheral connections ranging from external drives to printers. They also typically feature Wi-Fi and Ethernet capabilities, ensuring users stay connected whether at home, in the office, or on the go.

Battery life is another consideration, with most models designed to last several hours on a single charge, depending on usage patterns. This aspect makes the CQ40 series a reliable option for users who need to work remotely or during travel without being tethered to a power outlet.

Overall, the HP CQ40 series, including the models CQ40-120AU, CQ40-120AX, CQ40-131TU, CQ40-129AU, and CQ40-134TU, remains a practical choice for budget-conscious users seeking a dependable laptop for day-to-day tasks. With a combination of decent performance, good battery life, and essential features, these laptops continue to serve a purpose in the computing landscape.