NEC 1080Xd manual 20. IO Space Configuration Submenu, BIOS Setup

Models: 1080Xd

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Table 4-20. IO Space Configuration Submenu

Table 4-20. IO Space Configuration Submenu

Item

Option

Description

HBB #N (W/X/Y/Z)

[Auto]

HBB #N (W/X/Y/Z):

 

256Byte

N: HBB number (0 - 63)

 

512Byte

W: Cell Board number (0 - 7)

 

1KB

X: IOC number (0 - 1)

 

4KB

Y: GSL number (0 - 1)

 

8KB

Z: PCI bus number (0 - 1)

 

16KB

Displays/sets the I/O space 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 I/O resource size. When the sum of specified I/O resource size is smaller than the I/O resource size of the system (64 KB), a surplus I/O resource size is used for the host PCI bus bridge with the largest number. The sum of the specified I/O resource size must be smaller than 64kB or must be 64kB. If the size is larger than 64kB, the system detects a setting error at the next start up and the I/O resource size settings are initialized. (The procedure is the same as selecting option [Auto].)

4-46 BIOS Setup

Page 154
Image 154
NEC 1080Xd manual 20. IO Space Configuration Submenu, BIOS Setup