CAUTION: Safety Instructions

Use the following safety guidelines to help ensure your own personal safety and to help protect your computer and working environment from potential damage.

General

•Do not attempt to service the computer yourself unless you are a trained service technician. Always follow installation instructions closely.

•If you use an extension power cable with your AC adapter, ensure that the total ampere rating of the products plugged in to the extension power cable does not exceed the ampere rating of the extension cable.

•Do not push objects into air vents or openings of your computer. Doing so can cause fire or electric shock by shorting out interior components.

•Do not store your computer in a low-airflow environment, such as a carrying case or a closed briefcase, while the computer is turned on. Restricting airflow can damage the computer or cause a fire.

•Keep your computer away from radiators and heat sources. Also, do not block cooling vents. Avoid placing loose papers underneath your computer; do not place your computer in a closed-in wall unit or on a bed, sofa, or rug.

•Place the AC adapter in a ventilated area, such as a desk top or on the floor, when you use it to run the computer or to charge the battery. Do not cover the AC adapter with papers or other items that will reduce cooling; also, do not use the AC adapter inside a carrying case.

•The AC adapter may become hot during normal operation of your computer. Use care when handling the adapter during or immediately after operation.

•Do not allow your portable computer to operate with the base resting directly on exposed skin for extended periods of time. The surface temperature of the base will rise during normal operation (particularly when AC power is present). Allowing sustained contact with exposed skin can cause discomfort or, eventually, a burn.

•Do not use your computer in a wet environment, for example, near a bath tub, sink, or swimming pool or in a wet basement.

•If your computer includes an integrated or optional (PC Card) modem, disconnect the modem cable if an electrical storm is approaching to avoid the remote risk of electric shock from lightning via the telephone line.

System Information Guide

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Dell C840 manual General, System Information Guide
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C840 specifications

The Dell C840, released in the early 2000s, was a powerful mobile workstation designed to meet the needs of professionals who demanded high performance in a portable format. As part of Dell's Precision series, the C840 was well-regarded for its robust build quality, advanced features, and capability to handle intensive computing tasks.

One of the standout features of the Dell C840 was its Intel Pentium 4 processor, which offered impressive processing power at the time. Users could opt between different configurations, some even including the Intel Pentium 4 Extreme Edition for those seeking maximum performance. The system was designed to handle demanding applications such as CAD, 3D modeling, and other graphics-intensive programs, making it a favorite among architects, engineers, and graphic designers.

The C840 also featured a vibrant 15-inch display, with options for a high-resolution screen that provided sharp visuals and ample screen real estate for multitasking. The display's quality was complemented by NVIDIA graphics options, including the Quadro4 700 Go graphics card, which was optimized for professional applications, ensuring smoother graphics rendering and improved performance in 3D applications.

In terms of memory, the Dell C840 supported a generous amount of RAM, with configurations allowing up to 2GB, which was substantial for its time. This memory capacity contributed to better multitasking capabilities and overall system performance, allowing users to run multiple applications simultaneously without noticeable slowdowns.

Connectivity was another strong point of the Dell C840. The laptop featured a variety of ports, including USB ports, parallel and serial ports, and an optional docking station, which enhanced its versatility for connecting to various peripherals. Wireless technology was also a part of the package, with the inclusion of Wi-Fi capabilities, making it easier for users to stay connected in different environments.

Durability and design were key aspects as well. The C840 featured a solid chassis designed to withstand the rigors of mobility, making it suitable for on-the-go professionals. Its keyboard was designed for comfort and responsiveness, a critical feature for users who spent long hours typing.

In summary, the Dell C840 was a notable mobile workstation that combined power, performance, and portability. With its advanced Intel processors, high-quality display, robust graphics options, ample memory, and strong connectivity features, it catered to professionals looking for a reliable and efficient tool to handle their demanding workloads. Though technology has evolved significantly since its release, the Dell C840 remains a milestone in the history of mobile computing for professionals.
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