Maintenance and Service Guide

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 conguration:
a. If no issue with hardware conguration, reinstall one non essential component at
a time to determine faulty hardware.
b. If issue persists, replace essential hardware with a conrmed working part, one at
a time. If no boot, replace system board.
Tips and tricks Intermittent issue is dicult to reproduce and troubleshoot. It is important to record details
on shutdown frequencies, system conguration (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 briey
● Fails to boot into Windows operating
system, displays blue screen, and then
crashes, restarts, or stops responding
Possible causes
Recent changes: conict 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 dierent ways to troubleshoot a blue screen error. Therefore, you
need to identify working conguration (Windows 7/8/10) and specic symptoms
of the failure in order to narrow down the issue. Refer to Blue screen (BSOD) error
on page 131.
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 91) after disconnecting all external peripherals.
108 Chapter 8 Troubleshooting guide