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The I/O space resource distribution to each I/O Hub depends on the number of
recognized I/O Hubs:
4 CPUMEMRs
●
There is no limitation for assigning I/O space.
6 or 8 CPUMEMRs
●
If many expansion cards are installed which require I/O space, the BIOS
may not assign I/O space for all devices. You have to enter the BIOS Setup
menu and to disable the assignment of I/O space for devices that do not
need I/O space under OS operation.
Table 11
lists the I/O space assignment for individual CPU configurations. In the
BIOS Setup menu, you can choose from the following settings for the device per
slot:
Auto: I/O space is assigned when the device requests for it.
●
Disabled: I/O space is not assigned even if the device requests for it.
●
If you specify auto, the I/O space is assigned in descending order of the PCI-bus
number within each I/O Hub until no I/O space is left.
D3144, D3145, D3146 (RX900 S2)
Technical Manual
Features
43
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