HP rp5800 Maintenance & Service Guide HP rp5800 Retail System - Page 169

Solving Hardware Installation Problems

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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. Power off the system. 2. Reseat DIMMs. Power on the system. 3. Replace DIMMs one at a time to isolate the faulty module. NOTE: DIMM1 or XMM1 must always be installed. DIMM1 must be installed before DIMM2, and DIMM3 must be installed before DIMM4 4. Replace third-party memory with HP memory. 5. 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. Power off the system. 2. Reseat the graphics card. Power on the system. 3. Replace the graphics card. 4. 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. Power off the system. 2. 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. 3. Once bad card is identified, remove and replace bad option card. 4. Replace the system board. Solving Hardware Installation Problems 159

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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.
Power off the system.
2.
Reseat DIMMs. Power on the system.
3.
Replace DIMMs one at a time to isolate the faulty
module.
NOTE:
DIMM1 or XMM1 must always be installed.
DIMM1 must be installed before DIMM2, and DIMM3
must be installed before DIMM4
4.
Replace third-party memory with HP memory.
5.
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.
Power off the system.
2.
Reseat the graphics card. Power on the system.
3.
Replace the graphics card.
4.
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.
Power off the system.
2.
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.
3.
Once bad card is identified, remove and replace bad
option card.
4.
Replace the system board.
Solving Hardware Installation Problems
159