Interpreting Post Diagnostic Front Panel Leds And Audible Codes - HP 260 G1 Maintenance And Service Manual

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!
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.
Red Power LED flashes two
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
Red Power LED flashes four
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
Red Power LED flashes five
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
84 Chapter 7 POST error messages
When the computer is plugged into an AC power source, voltage is always applied to the system
Beeps
None
None
2
4
5
Possible cause Recommended action
Computer on. None
Computer in Suspend to None required. Press any key or move the mouse to
RAM mode (some models wake the computer.
only) or normal Suspend
mode.
Processor thermal 1.
protection activated:
A fan may be blocked or not 2.
turning.
OR
The heat sink/fan assembly
3.
is not properly attached to
the processor.
4.
Power failure (power supply 1.
is overloaded).
2.
3.
Pre-video memory error. CAUTION:
system board, you must unplug the computer power
cord before attempting to reseat, install, or remove
a DIMM module.
1.
2.
3.
4.
Ensure that the computer air vents are not
blocked and the cooling fan is running.
Open hood, press power button, and see if the
fan spins. If the processor fan is not spinning,
make sure the fan's cable is plugged onto the
system board header.
If fan is plugged in, but is not spinning, then
replace fan.
Contact an authorized reseller or service
provider.
Check if a device is causing the problem by
removing ALL attached devices. Power on the
system. If the system enters the POST, then
power off and replace one device at a time and
repeat this procedure until failure occurs.
Replace the device that is causing the failure.
Continue adding devices one at a time to
ensure all devices are functioning properly.
Replace the power supply.
Replace the system board.
To avoid damage to the DIMMs or the
Reseat DIMMs.
Replace DIMMs one at a time to isolate the
faulty module.
Replace third-party memory with HP memory.
Replace the system board.