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

Connector types
IMPORTANT: Connector pins and connector gold ngers should not be touched directly with bare hands.
There are several dierent types of connectors on the system board with dierent requirements for cable
removal or insertion.
Flex cable
When connecting ex cables to a ZIF connector, rotate the latch to 90 degrees, push the cable completely,
evenly into the connector, and then close the latch.
When removing ex cables from a ZIF connector on the system board, the latch must be released before the
cable can be removed. Always follow these steps:
1. Flip the connector latch 90 degrees to release the cable.
2. Grasp the cable end of the connector and pull it straight out.
CAUTION: Always release connector latch before removing the cable. Otherwise, pulling the cable could
damage the cable pins and result in a failed device.
Horizontal installation cable
Use at tool to pull connector evenly. Do not pull on cable to remove.
Slide connector into receptacle on same horizontal plane as board and use at tool to push evenly into
receptacle.
148 Chapter 8 Troubleshooting guide