Maintenance and Service Guide
Table Of Contents
- Product description
- Components
- Illustrated parts catalog
- Removal and replacement procedures preliminary requirements
- Removal and replacement procedures for Customer Self-Repair parts
- Removal and replacement procedures for authorized service provider parts
- Interpreting system validation diagnostic front panel LEDs and audible codes
- Troubleshooting guide
- Resources
- General troubleshooting steps
- Identify the issue
- Analyze the issue
- Resolve the issue
- Verify solution
- Helpful Hints
- Common issues and possible solutions
- Additional information
- Acronyms
- Blinking lights and boot error codes
- Processor not executing code
- BIOS recovery code unable to find valid BIOS recovery image
- Memory module error
- Graphics Controller Error (No Controller)
- Failure - System Board Error
- Intel Trusted Execution Technology (TXT) Error
- Sure Start unable to find valid BIOS Boot Block image
- Sure Start has identified a problem (Manual Recovery Policy Set)
- POST error messages and user actions
- Routine maintenance for performance improvement
- Common blue screen error messages
- Use Windows Debugging Tool
- Display issue: pixel anomalies
- Cable management
- Connector types
- Computer Setup (BIOS), TPM, and HP Sure Start
- Using HP PC Hardware Diagnostics
- Backing up, restoring, and recovering
- Specifications
- Power cord set requirements
- Statement of memory volatility
- Recycling
- Index
8 Troubleshooting guide
This chapter is primarily focused on troubleshooting HP Mobile Workstations. The information is provided so
that you can solve problems yourself or at least narrow down what may be causing the problem. Based on
some of the most common symptoms, this chapter helps to identify logical steps and available resources or
tools for resolving an issue. HP recommends that you follow the instructions carefully, observe safety
precautions, and note any observations or results. Capturing this information may help identify and resolve
the problem more quickly.
WARNING! To reduce the risk of electric shock or damage to the equipment:
● Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
● Plug the power cord into a grounded (earthed) outlet that is easily accessible at all times.
● Disconnect power from the equipment by unplugging the power cord from the AC outlet.
● Before disassembling notebooks, always disconnect power and remove the battery.
CAUTION: Static electricity can damage the electronic components of the computer. To prevent damage to
the computer, carefully observe the electrostatic discharge precautions.
● Discharge static electricity by briey touching a grounded metal object before you begin.
● Work on a static-free mat.
● Wear a static strap to ensure that any accumulated electrostatic charge is discharged from your body to
the ground.
● Create a common ground for the equipment you are working on by connecting the static-free mat, static
strap, and peripheral units to that piece of equipment.
● For more information, see Electrostatic discharge information on page 28.
CAUTION: The computer includes customer self-repair parts and parts that should only be accessed by an
authorized service provider. Accessing parts described in the chapter titled "Removal and replacement
procedures for authorized service provider only parts" can damage the computer or void the computer
warranty.
78 Chapter 8 Troubleshooting guide