Disconnect the monitor cable from the computer and check the cable connector for bent or broken pins. Check for damaged or frayed cables.

If the cable is not damaged, make sure that it is firmly connected to the computer.

Test the electrical outlet. Verify that the device is connected to a working electrical outlet. Verify that the device is turned on.

Check for interference: electrical appliances on the same circuit or operating in close proximity to the computer can cause interference.

Adjust brightness and contrast settings on the monitor.

Reinstall the video driver for your operating system.

Restart the computer.

If the problem still exists after you complete the basic checks, fill out the Diagnostics Checklist as you perform the following steps:

1Turn off the computer, wait at least 30 seconds, and then turn the computer back on.

2Allow 1 minute for the computer to initialize its components, and then adjust the monitor's brightness and contrast controls.

Is the monitor readable? Yes. The problem is resolved. No. Go to step 3.

3Turn off nearby fans, lights, lamps, or other electrical devices. Is the monitor readable?

Yes. One or more of those devices was causing interference. The problem is resolved.

No. Go to step 4.

4Enter system setup and make sure that Primary Video Controller under the Integrated Devices option is set correctly. Then exit system setup properly to save the information, and reboot the computer.

For an AGP expansion card, set Primary Video Controller to AGP. For a PCI expansion card, set Primary Video Controller to Auto.

Is the device working properly? Yes. The problem is resolved.

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Dell GX240 manual Solving Problems 159

GX240 specifications

The Dell GX240, a robust desktop computer released in the early 2000s, exemplifies the breed of machines engineered for business and productivity environments. Targeting corporate users, the GX240 was part of Dell’s OptiPlex series, known for its reliability, support, and manageability.

One of the main features of the Dell GX240 is its Intel Pentium 4 processor, which provided a significant performance boost at the time of its release. This processor was available in various speeds, enabling users to select the model that best met their processing needs. The GX240 also offered ample memory options, supporting up to 2GB of SDRAM, which was considerable for its era, allowing for smoother multitasking and application performance.

The design of the GX240 was practical, featuring a compact, space-saving chassis ideal for office environments. It was designed for easy serviceability, with tool-less access to components, facilitating quick upgrades or repairs. The system was equipped with various configurations, enabling customers to customize it with multiple hard drive options, typically using IDE drives, which provided sufficient storage for everyday tasks.

The desktop utilized a variety of expansion slots, including AGP for graphics cards and PCI slots for additional peripherals. This expandability was crucial for businesses needing to adapt or enhance their systems over time. Integrated Intel graphics were standard, but users could opt for dedicated graphics cards to meet more demanding graphical needs.

Connectivity was also a strong point for the GX240, featuring multiple USB 2.0 ports, a serial port, and audio input/output capabilities. These ports allowed for seamless integration with various peripherals and devices, essential for a productive work environment. The GX240 also supported network connectivity through a built-in Ethernet controller, making it well-suited for office use, especially in networked environments.

In terms of software, the GX240 was usually shipped with Microsoft Windows XP, ensuring users had access to a stable and user-friendly operating system. This operating system not only provided compatibility with a wide range of applications but also enhanced the overall user experience.

In conclusion, the Dell GX240 was a solid desktop choice for businesses in the early 2000s, combining performance, upgradability, and a compact design. Its Intel Pentium 4 processor and ample memory options made it suitable for various tasks, while its space-saving design and expansion capabilities allowed businesses to adapt the system to their evolving needs.