Chapter 6. Symptom-to-FRU Index

The Symptom-to-FRU index lists error symptoms and possible causes. The most likely cause is listed first. Always begin with Chapter 4, “General Checkout,” on page 11. This index can also be used to help you decide which FRUs to have available when servicing a computer. If you are unable to correct the problem using this index, go to “Undetermined problems” on page 20.

Notes:

If you have both an error message and an incorrect audio response, diagnose the error message first.

If you cannot run the diagnostic tests or you get a diagnostic error code when running a test but did receive a POST error message, diagnose the POST error message first.

If you did not receive any error message look for a description of your error symptoms in the first part of this index.

Hard disk drive boot error

A hard disk drive boot error can have the following causes.

Error

FRU/Action

 

 

The startup drive is not included in the boot sequence

Check the configuration and ensure the startup drive is

in configuration.

in the boot sequence.

 

 

No operating system installed on the boot drive.

Install an operating system on the boot drive.

 

 

The boot sector on the startup drive is corrupted.

The drive must be formatted. Do the following:

 

1. Attempt to back-up the data on the failing hard disk

 

drive.

 

2. Use the operating system to format the hard disk

 

drive.

 

 

The drive is defective.

Replace the hard disk drive.

 

 

Power Supply Problems

Follow these procedures if you suspect there is a power supply problem.

Check/Verify

FRU/Action

 

 

Check that the following are properly installed:

Reseat connectors

Power Cord

 

On/Off Switch connector

 

• System Board Power Supply connectors

 

Microprocessor(s) connection

 

 

 

Check the power cord.

Power Cord

 

 

Check the power-on switch.

Power-on Switch

 

 

 

© Copyright Lenovo 2012

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Lenovo H520S manual Symptom-to-FRU Index, Hard disk drive boot error, Power Supply Problems, Error FRU/Action

H520S specifications

The Lenovo H520S is a compact desktop PC designed to cater to both home and office environments. It combines sleek design with robust performance, making it an excellent choice for users seeking versatility in a desktop system. One of the standout features of the H520S is its powerful computing capabilities, driven by Intel's third-generation Core processor family. This ensures that tasks ranging from everyday browsing to demanding applications run smoothly and efficiently.

The design of the Lenovo H520S is notably space-saving, allowing it to fit comfortably in various environments without taking up excessive desk space. With a brushed metal finish and minimalist aesthetic, it blends seamlessly with modern office setups and home entertainment centers alike. The compact chassis not only contributes to its stylish appearance but also enhances portability, making it easier to transport if needed.

In terms of performance, the H520S is equipped with up to 16GB of DDR3 RAM, which provides ample memory for multitasking and running multiple applications simultaneously. The inclusion of integrated graphics and support for discrete graphics options allows users to engage in casual gaming and enjoy multimedia content without lag. For storage, the system offers a range of hard drive options, including traditional HDDs and faster SSDs, catering to different performance and capacity needs.

The desktop is also designed with connectivity in mind. It features multiple USB ports, HDMI output, and audio jacks, ensuring compatibility with a wide range of peripherals and devices. Additionally, the Lenovo H520S includes built-in Wi-Fi and Ethernet options for seamless internet connectivity, enabling users to stay connected whether working from home or in a busy office.

User convenience extends to its energy efficiency, with the H520S being Energy Star certified. This not only contributes to lower energy bills but also reflects Lenovo's commitment to sustainability. Overall, the Lenovo H520S stands out with its combination of compact design, powerful performance, and thoughtful features, making it an ideal choice for anyone looking for a reliable desktop solution that meets both personal and professional needs.