HP ZBook Studio x360 Maintenance and Service Guide - Page 118

Electromagnetic Interference (EMI

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Items Procedures Tips and tricks Troubleshooting steps Follow suggested steps below one at a time to verify normal boot process: 1. Disconnect all external peripherals, and perform a hard reset (8. Hard reset on page 86). 2. Perform soft reset (9. Soft reset (Default Settings) on page 87). 3. Update BIOS and drivers (4. Update BIOS and drivers on page 79). a. Roll back to previous version may be necessary. b. Go to safe mode to install drivers. 4. Run Hardware Diagnostics (6. HP Hardware Diagnostics and Tools on page 80) to isolate hardware issue. 5. Undo recent changes in Windows (5. Remove or uninstall recently added hardware, software on page 79). 6. Reseat cables and connections (10. Reseat cables and connections on page 87). 7. Start Windows in safe mode (11. Test with minimum configuration on page 88). 8. Use Startup Repair Windows to fix Windows damaged files. 9. Test with essential hardware configuration (11. Test with minimum configuration on page 88) along with a verified working operating system (i.e., USB Windows-To-Go ) if available to isolate the software issue. For more information, see http://support.hp.com/us-en/document/c03671001. Electromagnetic Interference (EMI) Items Symptoms System locks up, freezes in certain physical area or location Procedures Possible causes Electromagnetic interference (EMI). Troubleshooting steps 1. See (2. Examine the environment on page 78). Pay attention to external power source, high-frequency signals such as cell phones, microwave ovens. 2. Move the computer to different locations nearby to determine where it fails and where it does not fail. 3. Test with a verified working computer in original factory configuration. 4. Consult with support. 106 Chapter 6 Troubleshooting guide

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Items
Procedures
Troubleshooting steps
Follow suggested steps below one at a time to verify normal boot process:
1.
Disconnect all external peripherals, and perform a hard reset (
8. Hard reset
on page
86
).
2.
Perform soft reset (
9. Soft reset (Default Settings)
on page
87
).
3.
Update BIOS and drivers (
4. Update BIOS and drivers
on page
79
).
a.
Roll back to previous version may be necessary.
b.
Go to safe mode to install drivers.
4.
Run Hardware Diagnostics (
6. HP Hardware Diagnostics and Tools
on page
80
)
to isolate hardware issue.
5.
Undo recent changes in Windows (
5. Remove or uninstall recently added
hardware, software
on page
79
).
6.
Reseat cables and connections (
10. Reseat cables and connections
on page
87
).
7.
Start Windows in safe mode (
11. Test with minimum
configuration
on page
88
).
8.
Use Startup Repair Windows to
fix
Windows damaged
files.
9.
Test with essential hardware
configuration
(
11. Test with minimum
configuration
on page
88
) along with a
verified
working operating system (i.e.,
USB Windows-To-Go ) if available to isolate the software issue.
Tips and tricks
For more information, see
us-en/document/c03671001
.
Electromagnetic Interference (EMI)
Items
Procedures
Symptoms
System locks up, freezes in certain
physical area or location
Possible causes
Electromagnetic interference (EMI).
Troubleshooting steps
1.
See (
2. Examine the environment
on page
78
). Pay attention to external power source,
high-frequency signals such as cell phones, microwave ovens.
2.
Move the computer to
different
locations nearby to determine where it fails and where it
does not fail.
3.
Test with a
verified
working computer in original factory
configuration.
4.
Consult with support.
106
Chapter 6
Troubleshooting guide