Diagnosing and recovering from problems 8-3Step 2 Did the system unit beep after it was turned on?There is a problem with the system unit. Find theerror code or message in the section “Error codesand messages” on page 8-17 and take the actionlisted.Note: If the beep is a single long beep followed bytwo short beeps, a video error has occurred and theBIOS cannot initialize the video screen to displayadditional information.If the beep is a repeating single long beep, there’s aproblem with the dynamic random access memory(DRAM).– If you just added hardware and the computerwill not start, you might have a hardwareproblem. Remove the new hardware and restartthe computer to see if the problem is corrected.If the problem is corrected, you might haveinstalled the new hardware incorrectly. Reinstallyour hardware.For instructions on installing hardware in thesystem unit, see “Working with the hardware inthe system unit” on page 6-3. For instructionson installing options on the system board, see“Adding and replacing system boardcomponents” on page 7-1. If you did not justinstall new hardware or the computer appearsto start normally, go to Step 3.Yes, more than onceNo
