HP Z1 G3

Downloading HP PC Hardware Diagnostics (UEFI) to a USB device
NOTE: The HP PC Hardware Diagnostics (UEFI) download instructions are provided in English only, and you
must use a Windows computer to download and create the HP UEFI support environment because only .exe
les are oered.
There are two options to download HP PC Hardward Diagnostics to USB device.
Download the latest UEFI version
1. Go to http://www.hp.com/go/techcenter/pcdiags. The HP PC Diagnostics home page is displayed.
2. In the HP PC Hardware Diagnostics section, click the Dowload link, and then select Run.
Download any version of UEFI for a specic product
1. Go to http://www.hp.com/support, and then select your country. The HP Support page is displayed. .
2. Click Drivers & Downloads.
3. Use the categories listed to nd your product.
– or –
Click Find Now to let HP automatically detect your product.
4. Select your computer, and then select your operating system.
5. In the Diagnostic section, follow the on-screen instructions to select and download the UEFI version you
want.
POST error messages and diagnostic front panel LEDs and
audible codes
This appendix lists the error codes, error messages, and the various indicator light and audible sequences
that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the
problem, and steps you can take to resolve the error condition.
POST Message Disabled suppresses most system messages during POST, such as memory count and non-
error text messages. If a POST error occurs, the screen will display the error message. To manually switch to
the POST Messages Enabled mode during POST, press any key (except F10, F11, or F12). The default mode is
POST Message Disabled.
The speed at which the computer loads the operating system and the extent to which it is tested are
determined by the POST mode selection.
Quick Boot is a fast startup process that does not run all of the system level tests, such as the memory test.
Full Boot runs all of the ROM-based system tests and takes longer to complete.
Full Boot may also be enabled to run every 1 to 30 days on a regularly scheduled basis. To establish the
schedule, recongure the computer to the Full Boot Every x Days mode, using Computer Setup.
NOTE: For more information on Computer Setup, see Computer Setup (F10) Utilities on page 11.
POST error messages and diagnostic front panel LEDs and audible codes 61