1-36
System
BIOS
Hitachi Compute Rack 210H/220H BIOS Guide
IOH Configuration
Place the cursor on an item to display or set, and press
Enter
.
Figure 1-22: IOH Configuration submenu
The following table shows description of menu items.
Table 1-20: IOH Configuration submenu items
Menu items
Selection
*
Description
Intel(R) VT for Directed
I/O Configuration
-
Displays the
Intel(R) VT for Directed I/O
Configuration
submenu.
Intel(R) VT for Directed I/O Configuration
for
the details.
Intel(R) I/OAT
[Disabled]
Enabled
Sets Intel I/O Acceleration Technology to enable.
DCA Support
Disabled
[Enabled]
Sets QPI DCA to enable..
MMIOH Size
[64G]
1G, 2G, 4G, 8G, 16G,
32G, 128G
Sets the size of the memory-mapped I/O above
4GB address.
CPU PCI Express L1
Disabled
[Enabled]
Sets the power saving function (L1) by the CPU.
* A value in square brackets, [ ], shows the default.