HP Elite Dragonfly 13.5 Maintenance and Service Guide - Page 89

Burnt smell, Use this information to troubleshoot burnt-odor issues., Troubleshooting guide

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Table 6-13 Issues, possible causes, and fixes (continued) Items Procedures 1. Review battery power plans in Control Panel > Power Options that may consume more energy and discharge battery faster. Resetting default to Power Saver option can conserve battery power. 2. Determine whether any graphics are processing. 3. Verify battery maintenance and operations. Leaving the battery at a high level of charge in a high-temperature environment for extended periods accelerates the loss of capacity. 4. Test and calibrate battery using HP PC Hardware Diagnostics (UEFI). 5. Verify battery life cycle using HP Support Assistant tool. If battery cycle life is past its life expectancy (past the 1000-cycle life and 3-year warranty), the battery might need to be replaced. 6. Compare discharge time with a verified working battery (remove AC adapter) using Hardware Diagnostics (UEFI)>Hard Drive Tests>Extensive Test>Loop until error. Tips To conserve battery power, turn off Wireless On-Off button and other peripherals and USB devices, applications, processes (in Task Manager) when not in use; also, reduce screen brightness. Follow HP instructions about how to maintain battery and increase battery life. Also reference http://support.hp.com/us-en/document/c01297640? jumpid=hpr_r1002_usen_link3. Burnt smell Use this information to troubleshoot burnt-odor issues. Table 6-14 Issues, possible causes, and fixes Items Procedures Symptoms Possible causes Emits smoke, burnt smell Defective on-board components. Troubleshooting steps General visual inspection 1. Disconnect the computer from power source (AC adapter and battery). 2. Inspect for visual damage on AC adapter and battery. Test on a known working computer to isolate issue. If issue follows AC adapter or battery, replace it. 3. Inspect any sign of liquid spill on the computer (back of keyboard). The following steps are for authorized providers or technicians. Further inspection on components 1. Inspect further sources internally after disassembling chassis, such as burnt or damaged components. 2. If the issue persists, replace boards, AC adapter, and battery for safety concern, and report issues to HP. 80 Chapter 6 Troubleshooting guide

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Table 6-13
Issues, possible causes, and fixes
(continued)
Items
Procedures
1.
Review battery power plans in
Control Panel > Power Options
that may consume
more energy and discharge battery faster. Resetting default to
Power Saver
option can conserve battery power.
2.
Determine whether any graphics are processing.
3.
Verify battery maintenance and operations. Leaving the battery at a high level of
charge in a high-temperature environment for extended periods accelerates the
loss of capacity.
4.
Test and calibrate battery using HP PC Hardware Diagnostics (UEFI).
5.
Verify battery life cycle using HP Support Assistant tool.
If battery cycle life is past its life expectancy (past the 1000-cycle life and 3-year
warranty), the battery might need to be replaced.
6.
Compare discharge time with a verified working battery (remove AC adapter)
using
Hardware Diagnostics (UEFI)>Hard Drive Tests>Extensive Test>Loop until
error
.
Tips
To conserve battery power, turn off Wireless On-Off button and other peripherals and
USB devices, applications, processes (in Task Manager) when not in use; also, reduce
screen brightness.
Follow HP instructions about how to maintain battery and increase
battery life. Also reference
us-
en/
document/
c01297640?
jumpid=hpr_r1002_usen_link3
.
Burnt smell
Use this information to troubleshoot burnt-odor issues.
Table 6-14
Issues, possible causes, and fixes
Items
Procedures
Symptoms
Emits smoke, burnt smell
Possible causes
Defective on-board components.
Troubleshooting steps
General visual inspection
1.
Disconnect the computer from power source (AC adapter and battery).
2.
Inspect for visual damage on AC adapter and battery. Test on a known working
computer to isolate issue. If issue follows AC adapter or battery, replace it.
3.
Inspect any sign of liquid spill on the computer (back of keyboard).
The following steps are for authorized providers or technicians.
Further inspection on components
1.
Inspect further sources internally after disassembling chassis, such as burnt or
damaged components.
2.
If the issue persists, replace boards, AC adapter, and battery for safety concern,
and report issues to HP.
80
Chapter 6
Troubleshooting guide