Mouse Problems, Network Problems, Power Problems

•Ensure that the memory you are using is supported by your computer. For more information about the type of memory supported by your computer, see "Specifications" in the Setup and Quick Reference Guide.

•Run the Dell Diagnostics (see Dell Diagnostics).

Mouse Problems

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

Check the mouse cable —

•Ensure that the cable is not damaged or frayed and check cable connectors for bent or broken pins. Straighten any bent pins.

•Remove any mouse extension cables, and connect the mouse directly to the computer.

•Verify that the mouse cable is connected as shown on the setup diagram for your computer.

Restart the computer —

1.Simultaneously press <Ctrl><Esc> to display the Start menu.

2.Press <u>, press the up- and down-arrow keys to highlight Shut down or Turn Off, and then press <Enter>.

3.After the computer turns off, reconnect the mouse cable as shown on the setup diagram.

4.Turn on the computer.

Test the mouse — Connect a properly working mouse to the computer, and then try using the mouse.

Check the mouse settings —

Windows XP

1.Click Start→ Control Panel→ Mouse.

2.Adjust the settings as needed.

Windows Vista:

1.Click Start → Control Panel→ Hardware and Sound→ Mouse.

2.Adjust the settings as needed.

Reinstall the mouse driver

Run the Hardware Troubleshooter — See Hardware Troubleshooter.

Network Problems

Check the network cable connector — Ensure that the network cable is firmly inserted into the network connector on the back of the computer and the network jack.

Check the network lights on the back of the computer — If the link integrity light is off (see "About Your Computer" in the Setup and Quick Reference Guide), no network communication is occurring. Replace the network cable.

Restart the computer and log on to the network again

Check your network settings — Contact your network administrator or the person who set up your network to verify that your network settings are correct and that the network is functioning.

Run the Hardware Troubleshooter — See Hardware Troubleshooter.

Power Problems

220S, 220, 420 specifications

The Dell 420, 220, and 220S are well-regarded servers in the Dell PowerEdge lineup, showcasing robust performance and reliability for various enterprise applications. These servers are designed to meet the needs of small to medium-sized businesses, as well as larger enterprises seeking reliable computing solutions.

The Dell PowerEdge 420 stands out with its high-density architecture, optimized for virtualization and cloud applications. Equipped with Intel Xeon processors, it offers impressive processing power and scalability, supporting demanding workloads. With the ability to host multiple virtual machines, the 420 provides efficient resource utilization, ensuring that businesses can maximize their IT investments. The server also features advanced storage options, including the support for both traditional hard drives and solid-state drives, allowing for flexible data management and storage strategies.

In contrast, the Dell PowerEdge 220 and 220S are designed with simplicity and cost-effectiveness in mind. These servers feature tower and rack configurations that are ideal for environments with limited space. They leverage Intel's latest processor technologies, enhancing performance while maintaining energy efficiency. This makes the 220 series suitable for a variety of applications, including file and print services, web hosting, and database management.

One of the key characteristics of the Dell 220 and 220S is their ease of use. The systems are designed with straightforward setup procedures, allowing IT administrators to get them up and running quickly. Additionally, these servers come with Dell's OpenManage systems management tools, which offer comprehensive monitoring and management capabilities, enabling IT teams to maintain optimal server performance and reliability.

In terms of networking technologies, all three models support advanced network connectivity options, including multiple Ethernet ports and support for network interface cards (NICs) to ensure high-speed data transmission. Furthermore, they incorporate features such as redundancy in power supplies and cooling systems, enhancing overall system reliability and uptime.

Overall, the Dell 420, 220, and 220S represent a versatile range of server options that cater to varying business needs. With advancements in processing power, storage flexibility, and comprehensive management tools, these servers are well-suited for organizations looking to enhance their IT infrastructure while ensuring performance, reliability, and scalability.