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POST Diagnostic Front Panel LEDs and Audible Codes (Continued)
Activity
Red Power LED
flashes nine times,
once every
second, followed
by a two second
pause.
Red Power LED
flashes ten times,
once every
second, followed
by a two second
pause.
System does not
power on and
LEDs are not
flashing.
Service Reference Guide, dc7600
Beeps
Possible Cause
9
System powers on
but is unable to
boot.
10
Bad option card.
None
System unable to
power on.
390742-001
Recommended Action
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.
Replace the power supply.
Replace the system board.
Replace the processor.
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.
Once a bad card is identified, remove and
replace the bad option card.
Replace the system board.
Press and hold the power button for less
than 4 seconds. If the hard drive LED turns
green, then:
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.
Remove the expansion cards one at a time
until the LED light on the system board
turns on.
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:
Check that the unit is plugged into a
working AC outlet.
Open hood and check that the power
button harness is properly connected to
the system board.
Check that both power supply cables are
properly connected to the system board.
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.
If the LED light on the system board is not
turned on, then replace the power supply.
Replace the system board.
POST Error Messages
C–11
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