User`s manual

4-6
C2SEA/C2SEE User’s Manual
Interrupt 19 Capture
Interrupt 19 is the software interrupt that handles the boot disk function. When this
item is set to Enabled, the ROM BIOS of the host adaptors will "capture" Interrupt
19 at boot and allow the drives that are attached to these host adaptors to func-
tion as bootable disks. If this item is set to Disabled, the ROM BIOS of the host
adaptors will not capture Interrupt 19, and the drives attached to these adaptors
will not function as bootable devices.
Processor & Clock Options
Warning
When you rst enter the Advanced Setup screen, the Setup Warning will
be displayed. Follow the instructions and set the correct value for each
item to ensure that the system functions properly.
Ratio CMOS Setting
This option allows the user to set the ratio between the CPU Core Clock and the
FSB Frequency. (Note: if an invalid ratio is entered, the AMI BIOS will restore the
setting to the previous state.)
CPU VID
This feature allows the user to set VID for the processor. When this feature is
set to Enabled, C1E and TM2 might not function properly. The default setting
is Default.
Hardware Prefetcher (Available when supported by the OS and the CPU)
If set to Enabled, the hardware prefetcher will prefetch streams of data and instruc-
tions from the main memory to the L2 cache in the forward or backward manner to
improve CPU performance. The options are Disabled and Enabled.
Adjacent Cache Line Prefetch (Available when supported by the OS and the
CPU)
The CPU fetches the cache line for 64 bytes if this option is set to Disabled. The
CPU fetches both cache lines for 128 bytes as comprised if Enabled.
Max CPUID Value Limit
This feature allows the user to set the maximum CPU ID value. Enable this function
to boot the legacy operating systems that cannot support processors with extended
CPUID functions. The options are Enabled and Disabled (for the Windows OS.).