NEC 1080Xd - Manual (Page 150)

4-42 BIOS Setup
Table 4-18. Low MMIO Configuration Submenu
Item Option Description
HBB #N (W/X/Y/Z) [Auto]
4MB
8MB
16MB
32MB
64MB
128MB
256MB
HBB #N (W/X/Y/Z):
N: HBB number (0 - 63)
W: Cell Board number (0 - 7)
X: IOC number (0 - 1)
Y: GSL number (0 - 1)
Z: PCI bus number (0 - 1)
Displays/sets the PCI gap size of the host PCI bus
bridge.
Auto: BIOS automatically sets the optimal size.
Other than Auto: Select from the pop-up menu.
[ ]: Default setting
When [Auto] is selected, the BIOS detects the PCI devices installed on the host PCI bus
bridge. The BIOS automatically sets the optimal PCI Gap size. When the specified PCI
Gap size is smaller than the required PCI Gap size for the installed device, the BIOS
neglects the specified PCI Gap size and sets the optimal PCI Gap size. When the sum of
the specified PCI Gap size is smaller than the total PCI Gap size of the system, a
surplus PCI Gap size is used for the host PCI bus bridge with the largest number.