Internal Visual Inspection

4.While the boot routine is running, observe the computer for any of the following:

•Diskette-drive and hard-disk drive access indicator activity

These indicators light in response to data being transferred to or from the drives. If either of these indicators fails to light during the boot rou- tine, troubleshoot the diskette-drive or hard-disk drive subsystem, as appropriate.

•Beep codes

A beep code is a series of beeps that indicates an error condition. If the computer emits a beep code, refer to Table 3-1.

NOTE: The computer beeps once during the boot routine. This single beep is normal and is not a beep code.

•System error messages

These messages can indicate problems or provide status information. If a system error message displays, refer to Table 3-2.

5.Observe the monitor screen for the Diagnostics Menu. Does the Diagnostics Menu display?

Yes. See “Running the Diagnostics” found later in this chapter. No. Proceed to step 6.

6.Insert another copy of the Dell Diagnostics Diskette into the diskette drive, and reboot the computer.

Does the Diagnostics Menu display?

Yes. See “Running the Diagnostics” found later in this chapter.

No. Remove the diagnostics diskette from the diskette drive; then proceed to the next section, “Internal Visual Inspection.”

CAUTION: Before you proceed with the internal visual inspection described in this section, ensure that the user has saved all open files and exited all open application programs if possible.

A simple visual inspection of a computer’s interior hardware can often lead to the source of a problem, such as a loose expansion card, cable connector, or mounting screw. When you perform the visual inspection, refer to “System Fea- tures” in Chapter 1 to locate system components.

To perform the internal visual inspection, follow these steps:

1.Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their power sources.

2-4 Dell Dimension XPS H233 and XPS H266 Systems Service Manual

XPS H233, XPS H266 specifications

The Dell XPS series has long been synonymous with premium laptops and high-performance computing. Among their notable offerings are the XPS H266 and XPS H233 models, which embody cutting-edge technology and thoughtful design.

The XPS H266 comes equipped with a vibrant 15.6-inch InfinityEdge display that provides an immersive visual experience with stunning clarity and a near-borderless design. This model includes options for 4K Ultra HD resolution, which elevates the viewing experience for users who require exceptional graphics and detail, whether for gaming, video editing, or content creation. The display also features touch capability, adding versatility for users who prefer an interactive experience.

Under the hood, the XPS H266 leverages the latest Intel Core processors, providing robust power and impressive performance in multitasking scenarios. Coupled with high-speed SSD storage and ample RAM options, this laptop is designed to handle demanding applications with ease. Additionally, the thermal management system ensures that the device remains cool and operational even during extended use.

On the other hand, the XPS H233 model offers a more compact alternative with a 13.3-inch display. This model retains the InfinityEdge technology, maintaining a sleek profile ideal for portability without compromising visual quality. The H233 is also powered by the latest Intel Core processors, allowing efficient power consumption and performance. Its lightweight design makes it suitable for on-the-go professionals and students who need a reliable device that fits comfortably in a bag.

Both models incorporate advanced connectivity options, including Thunderbolt and USB-C ports for fast data transfer and versatile charging solutions. They feature Wi-Fi 6 capabilities, ensuring users experience faster connectivity and improved performance in crowded environments. Security features, such as a fingerprint reader and IR camera for Windows Hello, provide peace of mind for users concerned about their data safety.

In terms of battery life, both the XPS H266 and XPS H233 are optimized for long usage periods, enabling users to work or play without the constant worry of needing to recharge.

Overall, the Dell XPS H266 and H233 models represent a blend of innovative technology, stylish design, and unparalleled performance, catering to a diverse audience from professionals to entertainment enthusiasts. With features that address the needs of today’s users, these laptops continue to uphold the esteemed reputation of the XPS lineup.