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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. The options are Enabled and
Disabled
.
X
Processor & Clock Options
Warning
!
When you fi rst enter the Advanced Setup screen, the Setup
Warning will be displayed. Follow the instructions given on the screen to
set the correct value for each item to make sure that the system functions
properly.
CPU Ratio
Use this feature to select between automatic selection of the CPU clock ratio, or
manually setting it. The options are
Auto
and Manual.
Ratio CMOS Setting
This option appears when Manual is select under CPU Ratio (above). It 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.) Use your '+' and '-' keyboard keys to change the value.
Hardware Prefetcher (Available when supported by 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 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.).
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