HP dx2200 HP Compaq dx2200 MT Business PC, 1st Edition - Page 115

Power LED flashes

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Troubleshooting Without Diagnostics Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Power LED flashes six times, once every second, followed by a two second pause. None Pre-video graphics error. For systems with a graphics card: 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. Power LED flashes eight times, once every second, followed by a two second pause. None Invalid ROM based on bad checksum. 1. Reflash the ROM using a ROMPaq diskette. 2. Replace the system board. System does not power on and LEDs are not flashing. None System unable to power on. Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, then: 1. Check that the voltage selector, located on the rear of the power supply, is set to the appropriate voltage. Proper voltage setting depends on your region. 2. Remove the expansion cards one at a time until the LED light on the system board turns on. 3. Replace the system board. OR Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on green then: 1. Check that the unit is plugged into a working AC outlet. 2. Open hood and check that the power button harness is properly connected to the system board. 3. Check that both power supply cables are properly connected to the system board. 4. Check to see if the LED light on the system board is turned on. If it is turned on, then replace the power button harness. 5. If the LED light on the system board is not turned on, then replace the power supply. 6. Replace the system board. Service Reference Guide, dx2200 MT 415606-001 E-27

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Service Reference Guide, dx2200 MT
415606-001
E–27
Troubleshooting Without Diagnostics
Power LED flashes
six times, once
every second,
followed by a two
second pause.
None
Pre-video graphics
error.
For systems with a graphics card:
1. Reseat the graphics card. Power on
the system.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics,
replace the system board.
Power LED flashes
eight times, once
every second,
followed by a two
second pause.
None
Invalid ROM
based on bad
checksum.
1. Reflash the ROM using a ROMPaq
diskette.
2. Replace the system board.
System does not
power on and LEDs
are not flashing.
None
System unable to
power on.
Press and hold the power button for less
than 4 seconds. If the hard drive LED turns
green, then:
1. Check that the voltage selector,
located on the rear of the power
supply, is set to the appropriate
voltage. Proper voltage setting
depends on your region.
2. Remove the expansion cards one at a
time until the LED light on the system
board turns on.
3. Replace the system board.
OR
Press and hold the power button for less
than 4 seconds. If the hard drive LED does
not turn on green then:
1. Check that the unit is plugged into a
working AC outlet.
2. Open hood and check that the power
button harness is properly connected
to the system board.
3. Check that both power supply cables
are properly connected to the system
board.
4. Check to see if the LED light on the
system board is turned on. If it is
turned on, then replace the power
button harness.
5. If the LED light on the system board is
not turned on, then replace the power
supply.
6. Replace the system board.
Diagnostic Front Panel LEDs and Audible Codes
(Continued)
Activity
Beeps
Possible Cause
Recommended Action