6After the Microsoft® Windows® desktop appears on your computer, turn the computer off: a Save and close all open files and exit all open programs.

b Shut down the operating system:

•In Windows XP, click Start→ Turn Off Computer→ Turn off.

•In Windows Vista, click Start , click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down.

The computer turns off after the operating system shutdown process is complete.

NOTE: Ensure that the computer is off and not in a power management mode. If you cannot shut down the computer using the operating system, press and hold the power button for 4 seconds.

7Disconnect the keyboard and mouse, then disconnect the computer and monitor from their electrical outlets.

8Press the power button on the computer to ground the system board.

9Open the computer cover (see "Removing the Computer Cover" on page 86).

NOTICE: The password jumper plug must be reinstalled on the password jumper pins in order to enable the password feature.

10Locate the 2-pin password jumper on the system board (see "System Board Components" on page 89), and then reinstall the jumper plug to enable the password feature.

11Replace the computer cover (see "Replacing the Computer Cover" on page 159).

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

12Connect your computer and devices to electrical outlets, and then turn them on.

NOTE: In system setup (see "Entering System Setup" on page 166), both system and administrator password options appear as Not Set. The password feature is enabled but a password is not assigned.

Clearing CMOS Settings

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

NOTE: This procedure does not clear or reset system and setup passwords.

1Follow the procedures in "Before You Begin" on page 85.

2Remove the computer cover (see "Removing the Computer Cover" on page 86).

3Locate the password (PASSWORD) and CMOS (RTCRST) jumpers on the system board (see "System Board Components" on page 89).

Appendix

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Dell XPS 720 owner manual Clearing Cmos Settings, 175
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XPS 720, 720 specifications

The Dell XPS 720 is a powerful desktop computer that epitomizes the brand's commitment to performance and innovation. Introduced as part of the XPS (Extreme Performance System) line, the XPS 720 was designed for gamers, content creators, and tech enthusiasts who demand high performance from their machines.

One of the standout features of the XPS 720 is its impressive processing capabilities. The system can be equipped with Intel's quad-core processors, notably the Intel Core 2 Quad, which allows for exceptional multitasking and enhanced performance in multi-threaded applications. This makes it suitable for gaming, video editing, and graphic design.

The XPS 720 also offers a high level of customization, giving users the ability to select their desired specifications. Customers can choose between various configurations of RAM, hard drives, and graphics cards. The XPS 720 supports multi-GPU setups with NVIDIA’s SLI technology, enabling gamers to run the latest titles at optimal settings and resolutions, while also improving performance in demanding applications.

In terms of graphics capabilities, the XPS 720 can be outfitted with powerful NVIDIA GeForce or ATI Radeon graphics cards. This feature makes it a strong candidate for users who require cutting-edge visual performance, whether it’s for gaming, immersive simulations, or graphic-intensive applications.

Cooling solutions are a critical component of the XPS 720’s design, as high-performance systems generate substantial heat. Dell incorporates an advanced cooling system that includes unique thermal management technology to maintain optimal temperatures during heavy use, thereby prolonging the life and performance of the internal components.

The chassis of the XPS 720 is not only aesthetically pleasing but also functional. It features a sleek, futuristic design with customizable LED lighting, providing a visually appealing experience. The case also allows for easy upgrades and maintenance, which is essential for users who wish to enhance their systems over time.

Connectivity options are abundant on the XPS 720, with multiple USB ports, audio jacks, and high-definition multimedia interfaces. The inclusion of high-speed Ethernet and optional Wi-Fi capabilities ensures that users can stay connected whether for online gaming or browsing the web.

Overall, the Dell XPS 720 stands out as a commendable desktop solution that combines raw power, flexibility, and cutting-edge technologies. It remains a favorite among those looking for a robust machine capable of handling a wide variety of demanding tasks, from gaming to professional creative work. Whether you are a hardcore gamer or a professional seeking performance, the XPS 720 offers an exceptional computing experience.
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