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4 BIOS Setup
The Basic Input/Output System (BIOS) provides a basic level of communication between the
processor and peripherals. In addition, the BIOS also contains code for various advanced
features applied to the PXIe-63975 controller. The BIOS setup program includes menus for
configuring settings and enabling PXIe-63975 controller features.
Changing BIOS settings may result in incorrect operation and possibly an inability
to boot. If this occurs, follow the instructions in Section 2.3.15: Clearing CMOS
Jumper (JP1) to clear CMOS and restore default settings. In general, do not
change a BIOS setting unless you are absolutely certain of the consequences.
4�1 Starting the BIOS
1. Power on or reboot the PXIe-63975 controller.
2. Press the <Delete> key when the controller beeps. Thisshould be concurrent with the
main startup screen. The BIOS setup program loads after a short delay.
3. The Main menu is displayed when you first enter theBIOS setup program.
In most cases, the < Delete > key is used to invoke the setup screen. There are
several cases that use other keys, such as < F1 >, < F2 >, and so on.
The main BIOS setup menu is the first screen that you can navigate. Each main BIOS setup
menu option is described in this user’s guide.
The Main BIOS setup menu screen has two main frames. The left frame displays all the
options that can be configured. “Grayed” options cannot be configured, “Blue” options can
be.
The right frame displays the key legend. Above the key legend is an area reserved for a text
message. When an option is selected in the left frame, it is highlighted in white. Often a text
message will accompany it.
Navigation
The BIOS setup/utility uses a key-based navigation system called hot keys. Most BIOS setup
utility hot keys can be used at any time during setup navigation, as follows.
Key(s)
Function
Right Arrow, Left Arrow
Moves between different setup menus
Up Arrow, Down Arrow
Moves between options within a setup menu
<Enter>
Opens a submenu or displays all available settings for
a highlighted configuration option
<Esc>
Returns to the previous menu and shortcuts to the
Exit menu from top-level menus
<+> and <–>
Cycles between all available settings
<Tab>
Selects time and date fields
<F1>
Opens the general help window for the BIOS
