Compaq dc7700 - Convertible Minitower PC Quick Setup & Getting Started page 27

Table 3 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity
Green 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
three 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.
ENWW
Beeps Possible Cause
None Computer in
Suspend to RAM
mode (some models
only) or normal
Suspend mode.
2 Processor thermal
protection activated:
A fan may be blocked
or not turning.
OR
The heatsink/fan
assembly is not
properly attached to
the processor.
3 Processor not
installed (not an
indicator of bad
processor).
4 Power failure (power
supply is
overloaded).
Recommended Action
None required. Press any key or move
the mouse to wake the computer.
1. Ensure that the computer air vents
are not blocked and the processor
cooling fan is running.
2. Open hood, press power button,
and see if the processor fan spins.
If the processor fan is not spinning,
make sure the fan's cable is
plugged onto the system board
header.
3. If fan is plugged in, but is not
spinning, then replace heatsink/fan
assembly.
4. Contact an authorized reseller or
service provider.
1. Check to see that the processor is
present.
2. Reseat the processor.
1. Open the hood and ensure the 4 or
6-wire power supply cable is
seated into the connector on the
system board.
2. Check if a device is causing the
problem by removing ALL attached
devices (such as hard, diskette, or
optical drives, and expansion
cards). 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.
3. Replace the power supply.
4. Replace the system board.
Basic Troubleshooting
19