HP ZBook Studio x360 Maintenance and Service Guide - Page 104
Consulting with HP Service, Common issues and possible solutions, Power-on issues, No Power
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Consulting with HP Service If further HP support is required, a lot of the following information may be requested when you call, so it may be helpful to take notes. ● Technical support registration number (if applicable) ● Product serial number ● Product model name and number ● Product identification number ● Applicable error messages ● Add-on boards or hardware ● Third-party hardware or software ● Operating system type and revision level Common issues and possible solutions This section contains common issues, symptoms, and a series of tables that describe possible solutions to issues from Failure classification on page 76 tables. The following sections identify the issue with symptoms and solutions to resolve an issue. Power-on issues No Power When a unit experiences no power there are several contributing factors to consider. Be sure to consider all symptoms related to this behavior in troubleshooting. Items Symptoms ● Computer does not start ● Display is black or blank ● No fan noise ● No hard drive spinning ● Lights do not glow Procedures Possible causes Failed power input to the computer (external power source, AC adapter, faulty battery). Bad connection to the computer (bad power button, power connector). Defective parts (memory, hard drive, graphics) or failed system board. Troubleshooting steps Perform quick check Remove all external devices, including docking station. Verify external power source (2. Examine the environment on page 78). Perform a hard reset (8. Hard reset on page 86). 92 Chapter 6 Troubleshooting guide