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 8-19 Issues, possible causes, and xes (continued)
Items Procedures
1. Check for any signs of loose connections, bent pins, stray wires, dust, nearly faulty
parts (bulging/leaking capacitor).
2. Verify that lights are solid.
3. If shutdown is reproducible, test essential hardware conguration:
a. If no issue with hardware conguration, reinstall one non essential component at
a time to determine faulty hardware.
b. If issue persists, replace essential hardware with a conrmed working part, one at
a time. If no boot, replace system board.
Tips and tricks Intermittent issue is dicult to reproduce and troubleshoot. It is important to record details
on shutdown frequencies, system conguration (3D video application) and operating
conditions.
Blue screen
Table 8-20 Issues, possible causes, and xes
Items Procedures
Symptoms
● Have power, light activity, fan spinning
● HP Logo displays briey
● Fails to boot into Windows operating
system, displays blue screen, and then
crashes, restarts, or stops responding
Possible causes
Recent changes: conict of instructions from multiple programs or just added
hardware.
Incompatible hardware and driver.
Poor connection (hard drive, memory).
Hardware malfunctioning due to overheating (GPU, processor).
Defective hardware (memory, hard drive).
Important Notes & Resources Troubleshooting steps
There are many dierent ways to troubleshoot a blue screen error. Therefore, you
need to identify working conguration (Windows 7/8/10) and specic symptoms
of the failure in order to narrow down the issue. Refer to Blue screen (BSOD) error
on page 129.
Recommended resources
Microsoft knowledge base:
http://windows.microsoft.com/en-us/windows-8/resolve-windows-blue-screen-
errors
For more information search for HP Troubleshooting Error Messages on a blue
screen at http://www.hp.com.
Overview of General Troubleshooting Steps for a blue screen error
1. Note the blue screen error message and what activity was performed at the time.
2. Perform a hard reset (8. Hard reset on page 89) after disconnecting all external peripherals.
106 Chapter 8 Troubleshooting guide