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
Thermal shutdown (hot)
Table 8-54 Issues, possible causes, and xes
Items Procedures
Symptoms
Similar to fan runs constantly issue
(Fan runs constantly on page 133)
● System shutdown
● Abnormal heat
● Continually running fan
● Decreased computer
performance
Possible causes
BIOS not up to date, thermal condition (fan, air ow)
Troubleshooting steps
1. Update BIOS and drivers (4. Update BIOS and drivers on page 83) and reset BIOS to
default. BIOS may implement new fan characteristics and updates for other component.
2. Perform a hard reset (8. Hard reset on page 89). Performing a hard reset can reset
recorded thermal values in memory.
3. Determine whether you are using a correct AC adapter.
4. Be sure to turn power o completely when putting a notebook in a travel bag.
Thermal-related issue
1. Verify thermal condition:
a. Check fan and connection. Reseat fan cable.
b. Be sure that no obstructions or dust are in heat sink fan, n, or vent.
c. Be sure that the notebook is not sitting on a hot surface that blocks vent intakes.
d. Test fan using HP PC Hardware Diagnostics (UEFI) tool (6. HP Hardware Diagnostics
and Tools on page 84). Be sure that the fan is not producing a loud noise and that
fan blades spin correctly.
e. Test with a veried working fan.
f. Remove old thermal compound and pads, and replace properly with new pads.
2. Verify thermal solution:
○ Use Thermal Monitor tool (available only to authorized service providers/
technicians) to run stress test (processor and GPU) and verify that thermal sensors
are within limits after thermal condition is serviced.
Note See https://support.hp.com/us-en/document/c01657439.
Stuck power button
Table
8-55 Issues, possible causes, and xes
Items Procedures
Symptoms
● Rear power indicator light is on
● Will not turn on when power
button is pressed
● Automatically powers on
Possible causes
Sticky or defective power button.
Troubleshooting steps
General actions
1. Perform a hard reset (8. Hard reset on page 89).
2. Perform a soft reset if system can turn on.
The sections below are intended for authorized service providers/technicians.
1. Disassemble the unit.
134 Chapter 8 Troubleshooting guide