Chapter 2
Installation and Configuration
2-18
ni.com
Spread Spectrum
When the motherboard clock generator pulses, the pulse spikes create
electromagnetic interference (EMI). The Spread Spectrum function
reduces the EMI by modulating the pulses, so that pulse spikes are reduced
to flatter curves. If EMI is not a problem, leave the setting at Disabled for
optimal system stability and performance. If EMI is a problem, change the
setting to Enabled for EMI reduction.
Load Fail-Safe/Optimized Defaults
These two main menu options allow users to restore all BIOS settings to the
default fail-safe or optimized values. The optimized defaults are the values
set by National Instruments for optimal performance. The fail-safe defaults
are the values set by the BIOS vendor for stable system performance.
When you select Load Optimized Defaults, the following message
appears:
Load Optimized Defaults? (Y/N)?
Press <Y> to load the default factory settings for optimal system
performance.
When you select Load Fail-Safe Defaults, the following message appears:
Load Fail Safe Defaults (Y/N)?
Press <Y> to load the BIOS default values for the most stable, minimal
system performance.
Set Supervisor/User Password
When you select this function, the following message appears:
Enter
Password:
.
Type the password, up to eight characters, and press <Enter>. The new
password replaces any previously set password in CMOS memory. You
will be prompted to confirm the password. Retype the password and press
<Enter>. You can also press <Esc> to abort the selection.
To clear a set password, press <Enter> when prompted to enter the
password. A message will confirm that the password will be disabled.
When the password is disabled, the system boots, and you can enter setup
without entering a password.
When you set a password, you will be prompted to enter it every time you
enter setup. This prevents an unauthorized person from changing any part
of your system configuration.
