Interpreting Post Diagnostic Front Panel Leds And Audible Codes - HP EliteDesk 700 G1 Maintenance And Service Manual

Control panel message
Network Server Mode Active and No
Keyboard Attached
Parity Check 2
Interpreting POST diagnostic front panel LEDs and
audible codes
This section covers the front panel LED codes as well as the audible codes that may occur before or
during POST that do not necessarily have an error code or text message associated with them.
WARNING!
the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet and allow the internal system components to cool
before touching.
NOTE:
If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front panel of the
computer and refer to the following table to determine the front panel LED codes.
Recommended actions in the following table are listed in the order in which they should be performed.
Not all diagnostic lights and audible codes are available on all models.
Activity
White Power LED On.
White Power LED flashes every
two seconds.
136 Chapter 8 POST error messages
Description
Keyboard failure while Network Server
Mode enabled.
Parity RAM failure.
When the computer is plugged into an AC power source, voltage is always applied to
Beeps
None
None
Possible cause Recommended action
Computer on. None
Computer in Suspend to None required. Press any key or move the mouse
RAM mode (some models to wake the computer.
only) or normal Suspend
mode.
Recommended action
1.
Reconnect keyboard with computer
turned off.
2.
Check connector for bent or missing
pins.
3.
Ensure that none of the keys are
depressed.
4.
Replace keyboard.
Run Computer Setup and Diagnostic utilities.