HP EliteDesk 800 G8 Maintenance and Service Guide - Page 5

Cannot remove computer cover or access panel 54 Poor performance ...54 Computer powered off automatically and the power light blinks red four times and then white two times ...55 System does not turn on and the lights on the front of the computer are not blinking 55 Solving power problems ...56 Power supply shuts down intermittently 56 Computer turned off automatically, power light blinks red two times followed by a twosecond pause, and the computer beeps two times (Beeps stop after fifth iteration but lights continue blinking) ...56 Power light blinks red four times followed by a two-second pause and the computer beeps four times (Beeps stop after fifth iteration but lights continue blinking 56 Solving hard drive problems ...57 Hard drive error occurs ...57 Disk transaction problem ...57 Drive not found (identified) ...57 Nonsystem disk/NTLDR missing message 58 Computer will not boot from hard drive 58 Computer seems to be locked up ...59 Solving audio problems ...59 Sound cuts in and out ...59 Sound does not come out of the speaker or headphones 59 Computer appears to be locked up while recording audio 60 Line-in jack is not functioning properly 60 Solving printer problems ...60 Printer will not print ...60 Printer will not turn on ...61 Printer prints garbled information ...61 Printer will not print ...61 Solving keyboard and mouse problems ...61 Keyboard commands and typing are not recognized by the computer 61 Mouse does not respond to movement or is too slow 62 Solving hardware installation problems ...62 A new device is not recognized as part of the system 63 Computer will not start ...63 Power light blinks red three times and then white two times 63 Solving network problems ...64 Network driver does not detect network controller 64 Network status link light never blinks 64 Diagnostics reports a failure ...65 Diagnostics passes, but the computer does not communicate with the network 65 v