Fujitsu PRIMERGY BX922 S2 Operating Manual page 68

Advanced menu
Adjacent Cache Line Prefetch
Specifies whether the CPU reads two cache lines ahead (Enabled) or just
one (Disabled).
Hardware Prefetch
Specifies whether a hardware prefetch is activated (Enabled) or
deactivated (Disabled).
I
The use of this option depends on the various performance
results for different applications.
Limit CPUID Function
Specifies whether CPUID commands are to be processed with more
than 3 functions (Enabled) or not processed (Disabled).
I
Some operating systems cannot handle new CPUID commands
that have more than 3 functions. This option should be set to
Enabled for these operating systems.
68 Operating Manual
BIOS Setup
BX922 S2