HP Pro 3080 Maintenance & Service Guide: HP Pro 3000/3010/3080 Business PC - Page 171

Solving Hardware Installation Problems

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Table C-10 Solving Hardware Installation Problems (continued) The computer emits one short beep then one long beep followed by a three second pause. 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. 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. NOTE: DIMM2 must always be installed. 3. Replace third-party memory with HP memory. 4. Replace the system board. The computer emits two short beeps then one long beep followed by a three second pause. 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. Solving Hardware Installation Problems 161

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The computer emits one short beep then one long beep followed by a three second pause.
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.
1.
Reseat DIMMs. Power on the system.
2.
Replace DIMMs one at a time to isolate the faulty
module.
NOTE:
DIMM2 must always be installed.
3.
Replace third-party memory with HP memory.
4.
Replace the system board.
The computer emits two short beeps then one long beep followed by a three second pause.
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.
Table C-10
Solving Hardware Installation Problems (continued)
Solving Hardware Installation Problems
161