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Calling Technical Support; Locating Id Labels - HP Z400 Maintenance And Service Manual

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Calling technical support

At times you might encounter an issue that requires technical support. When you call technical support:
Have the workstation readily accessible.
Write down the workstation serial numbers, product numbers, model names, and model numbers
and have them in front of you.
Note any applicable error messages.
Note any add-on options.
Note the operating system.
Note any third-party hardware or software.
Note the details of any blinking LEDs on the front of the workstation.
Note the applications you were using when you encountered the problem.
Note the power supply BIST status, if applicable.
When calling in for service or support, you might be asked for the Product Number (example:
PS988AV) of the workstation. If the workstation has a Product Number, it is generally located next to
the 10- or 12-digit Serial Number of the workstation.
On most models, the serial number and product number labels can be found on the top panel
or side of the workstation and at the rear of the workstation.
For a listing of all worldwide technical support phone numbers, visit,
select your region, and click Contact HP in the upper-left corner.

Locating ID labels

To assist in troubleshooting, product, serial, and authentication numbers are available on each
Calling technical support


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