Dell OPTIPLEX 990 Service Manual download pdf (Page 56)

Beep Codes and Text Error Messages

The OptiPlex BIOS is capable of displaying error messages in plain English,

along with beep codes. If the BIOS determine the previous boot was

unsuccessful, it displays an error message similar to the following:

Previous attempts at booting the system have failed at

checkpoint ______. For help resolving this problem, please

note this checkpoint and contact Dell Technical Support.

Navigation

The computer setup can be navigated by either the keyboard or the mouse.

Use the following keystrokes to navigate the BIOS screens:

Action Keystroke

Expand and collapse field <Enter>, left- or right-arrow key, or +/–

Expand or collapse all fields < >

Exit BIOS <Esc> — Remain in Setup, Save/Exit,

Discard/Exit

Change a setting Left or right-arrow key

Select field to change <Enter>

Cancel modification <Esc>

Reset defaults <Alt><F> or Load Defaults menu option

System Setup Options

NOTE: Depending on the computer and its installed devices, the items listed in this

section may or may not appear.

General

System Information Displays the following information:

• System Information: Displays BIOS Version, Service Tag,

Asset Tag, Ownership Date, Manufacture Date, and the

Express Service Code.

• Memory Information: Displays Memory Installed, Memory

Available, Memory Speed, Memory Channels Mode,

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Dell OPTIPLEX 990 Service Manual Page 56