Compaq dc7700 - Convertible Minitower PC Quick Setup & Getting Started page 29

Table 3 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity
Red Power LED flashes
nine 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
ten times, once every
second, followed by a
two second pause.
Beeps stop after fifth
iteration but LEDs
continue until problem is
solved.
System does not power
on and LEDs are not
flashing.
ENWW
Beeps Possible Cause
9 System powers on
but is unable to boot.
10 Bad option card.
None System unable to
power on.
Recommended Action
1. Check that the voltage selector,
located on the rear of the power
supply (some models), is set to the
appropriate voltage. Proper voltage
setting depends on your region.
2. Replace the system board.
3. Replace the processor.
1. Check each option card by
removing the card (one at a time if
multiple cards), then power on the
system to see if fault goes away.
2. Once a bad card is identified,
remove and replace the bad option
card.
3. Replace the system board.
Press and hold the power button for less
than 4 seconds. If the hard drive LED
turns green, the power button is working
correctly. Try the following:
1. Check that the voltage selector
(some models), located on the rear
of the power supply, is set to the
appropriate voltage. Proper voltage
setting depends on your region.
2. 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 5V_aux light on
the system board is turned on. If it
is turned on, then replace the
power button harness. If the
Basic Troubleshooting
21