New Transducers TR-5001 - Manual (Page 89)

Load Fail-Safe Defaults
When you press <Enter> on this item you get a confirmation dialog box
with a message similar to:
Load Fail-Safe Defaults (Y/N) ? N
Pressing ‘Y’ loads the BIOS default values for the most stable,
minimal-performance system operations.
Load Optimized Defaults
When you press <Enter> on this item you get a confirmation dialog box
with a message similar to:
Load Optimized Defaults (Y/N) ? N
Pressing ‘Y’ loads the default values that are factory settings for
optimal performance system operations.
85 TR-5001 User Manual