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
Table 8-22 Issues, possible causes, and xes (continued)
Items Procedures
4. Consult with support.
No wake up
Table 8-23 Issues, possible causes, and xes
Items Procedures
Symptoms
When resuming from a power
management state the computer may
display:
● Blank screen
● Some light activity
Possible causes
Power-saving mode; multiple-display setting.
Troubleshooting steps
1. Verify that front power light (7. Status lights, blinking light codes, troubleshooting
lights, and POST error messages on page 87) is blinking (indicating Sleep state). Press
power button to exit Sleep.
2. Reset BIOS to default (associated with OS Power Management in Power Menu) (4.
Update BIOS and drivers on page 83)
3. Verify power management settings in Windows Power Options. Disable Sleep options if
the issue is resolved.
4. Screen saver is set. Press any key or touch touchpad to resume.
5. Verify that Display Choice is set to external video only. Toggle screen control key
combination Fn + F4 or Windows logo +P.
Tips and tricks If you are using a docking station, set your notebook display as a primary display. When the
computer is undocked, you may think it is in a power-saving state, but the screen image may
actually display on an external display device in the docking conguration.
110 Chapter 8 Troubleshooting guide