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Table 9-2 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity Beeps Possible Cause Recommended Action
Red Power LED flashes six
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue
until problem is solved.
6 Pre-video graphics error. For systems with a graphics card:
1. Reseat the graphics card.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics, replace
the system board.
Red Power LED flashes
seven times, once every
second, followed by a two
second pause. Beeps stop
after fifth iteration but LEDs
continue until problem is
solved.
7 System board failure
(ROM detected failure
prior to video).
Replace the system board.
Red Power LED flashes eight
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue
until problem is solved.
8 Invalid ROM based on
bad checksum.
1. Reflash the system ROM with the latest
BIOS image.
2. Replace the system board.
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.
9 System powers on but is
unable to boot.
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. Unplug the AC power cord from the
computer, wait 30 seconds, then plug the
power cord back in to the computer.
3. Replace the system board.
4. Replace the processor.
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.
10 Bad option card. 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.
184 Chapter 9 POST Error Messages