Operation Manual
7 Troubleshooting........................................................................................................................................... 57
Basic troubleshooting steps............................................................................................................................................57
Diagnostics........................................................................................................................................................................57
Pre-Boot System Assessment..................................................................................................................................57
Enhanced PSA........................................................................................................................................................... 58
LCD BIST.................................................................................................................................................................... 58
Beep codes.................................................................................................................................................................59
8 BIOS............................................................................................................................................................60
Changing BIOS settings..................................................................................................................................................60
Entering BIOS setup program........................................................................................................................................ 60
Resetting BIOS password............................................................................................................................................... 60
Remove the CMOS battery......................................................................................................................................60
Use system‑board jumper......................................................................................................................................... 61
Changing the boot sequence..........................................................................................................................................61
Using boot menu.........................................................................................................................................................61
Using BIOS setup program........................................................................................................................................61
9 Getting help and contacting Dell..................................................................................................................62
Getting help...................................................................................................................................................................... 62
Self-help resources.................................................................................................................................................... 62
Contacting Dell.................................................................................................................................................................63
10 References................................................................................................................................................. 64
Computer maintenance...................................................................................................................................................64
Power management........................................................................................................................................................ 64
Conguring power settings...................................................................................................................................... 65
Conguring the power button behavior..................................................................................................................65
Dell Power Manager.................................................................................................................................................. 66
Improving battery life.......................................................................................................................................................66
Dell longevity mode....................................................................................................................................................66
Dell desktop mode......................................................................................................................................................67
Migration tips....................................................................................................................................................................67
Migrating from one Windows operating system to a newer Windows operating system.................................67
Ergonomic instructions....................................................................................................................................................67
Dell and the environment................................................................................................................................................ 68
Regulatory compliance policy......................................................................................................................................... 69
Contact details for regulatory compliance web site.............................................................................................. 69
Additional compliance information...........................................................................................................................69
6
Contents