Flex I/O module .............................................................................................................................................................................................................................24
Riser assembly and expansion cards......................................................................................................................................................................... 25
Solid-state drive.......................................................................................................................................................................................................................... 28
WLAN module............................................................................................................................................................................................................................... 29
Wireless antennas and cables.........................................................................................................................................................................................30
Battery............................................................................................................................................................................................................................................... 32
Power button.................................................................................................................................................................................................................................33
Speaker............................................................................................................................................................................................................................................. 34
System board................................................................................................................................................................................................................................ 35
System board callouts............................................................................................................................................................................................................37
5 Troubleshooting without diagnostics................................................................................................................................................................................39
Before you call for technical support.......................................................................................................................................................................... 39
Helpful hints...................................................................................................................................................................................................................................40
Solving general problems....................................................................................................................................................................................................40
Cannot access the Computer Setup (F10) Utility when booting the computer.................................................................40
Computer appears locked up and will not turn off when the power button is pressed............................................... 41
Computer will not respond to keyboard or mouse.................................................................................................................................. 41
Computer date and time display is incorrect ............................................................................................................................................. 41
There is no sound or sound volume is too low............................................................................................................................................ 41
Cannot remove computer cover or access panel ................................................................................................................................. 42
Poor performance.......................................................................................................................................................................................................... 42
Computer turned off with four red blinks and two white blinks ....................................................................................................43
System does not turn on and the lights on the front of the computer are not blinking...............................................43
Solving power problems....................................................................................................................................................................................................... 44
Power supply shuts down intermittently........................................................................................................................................................44
Two red blinks then two beeps..............................................................................................................................................................................44
Four red blinks then four beeps ...........................................................................................................................................................................45
Solving hard drive problems..............................................................................................................................................................................................45
Hard drive error occurs.............................................................................................................................................................................................. 45
Disk drive transaction problem ............................................................................................................................................................................ 45
Drive not found (identified) ......................................................................................................................................................................................46
Nonsystem disk/NTLDR missing message .................................................................................................................................................46
Computer will not boot from hard drive..........................................................................................................................................................46
Computer seems to be locked up .......................................................................................................................................................................47
Solving audio problems..........................................................................................................................................................................................................47
Sound cuts in and out...................................................................................................................................................................................................47
Sound does not come out of the speaker or headphones ...............................................................................................................47
Computer appears to be locked up while recording audio..............................................................................................................48
Line-in jack is not functioning properly ...........................................................................................................................................................48
Solving printer problems......................................................................................................................................................................................................48
Printer will not print........................................................................................................................................................................................................48
Printer will not turn on..................................................................................................................................................................................................49
Printer prints garbled information...................................................................................................................................................................... 49
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