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Welcome to HP Customer Support

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  • Information
    Important Print Security Update

    HP was recently made aware of a vulnerability in certain inkjet printers by a third-party researcher. HP has updates available for download to address the vulnerability. Details and more information are available in the Security Bulletin

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HP xw4400, xw4550, xw4600, xw6400, xw8400, and xw9400 Workstations - Solving Power Supply Issues

Information
Testing the power supply:
Before replacing the power supply, use the Built-In Self-Test (BIST) feature to learn if the power supply still works.
Details
To test the power supply, complete the following steps:
  1. Unplug the AC power.
  2. Disconnect all internal power supply cables from the system board.
  3. Plug in AC power.
    • If the green BIST LED on the rear of the workstation is illuminated, and the fan is spinning, the power supply is functional.
    • If the green BIST LED is not illuminated, or the fan is not spinning, replace the power supply.

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Ask the community!


Support Forum

Support Forum

Join the conversation! Find Solutions, ask questions, and share advice with other HP product owners. Visit now


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Country/Region: Flag Singapore

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