4-32 BIOS Setup
The options you can set on the System Hardware menu and their functions are shown in
the following table.
Table 4-13. System Hardware Menu
Item Option Description
HBB Configuration -- Specifies Master Latency Timer, PCI Gap, and I/O space
for each host PCI bus bridge (HBB: Host Bus Bridge).
For more information, refer to “HBB Configuration
Submenu.”
Console Redirection -- Displays/changes the settings of the serial console
input/output function.
For more information, refer to “Console Redirection
Submenu.”
Shrink total number of
interrupt vectors
-- Specifies whether to aggregate Global System Interrupt
Vectors to 255 or fewer than 255.
For more information, refer to “Shrink Total Number of
Interrupt Vectors Submenu.”
Memory Mapped
I/O > 4GB
-- Specifies whether to map the Memory Mapped I/O to an
area of more than 4 GB.
For more information, refer to “Memory Mapped
I/O>4GB Submenu.”
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