Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five
times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Solution
Memory is installed incorrectly or is bad. CAUTION: To avoid damage to the DIMMs or the system
board, you must unplug the computer power cord before
attempting to reseat, install, or remove a DIMM module.
1. Reseat DIMMs. Power on the system.
2. Replace DIMMs one at a time to isolate the faulty module.
NOTE: DIMM 1 must always be installed.
3. Replace third-party memory with HP memory.
4. Replace the system board.
Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six
times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Solution
Graphics card is not seated properly or is bad, or system board
is bad.
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 Red ten times, once every second, followed by a two second pause, and the computer beeps ten
times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Solution
Bad option card. 1. Check each option card by removing the cards one at time
(if multiple cards), then power on the system to see if fault
goes away.
2. Once bad card is identified, remove and replace bad
option card.
3. Replace the system board.
Table E-11 Solving Hardware Installation Problems (continued)
Solving Hardware Installation Problems 221
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