Acnodes RMC 7155 - Manual (Page 52)

RMC 7155
14” short depth server
52
© Copyright 2011 Acnodes, Inc.
All rights reserved. Product description and product specifications
are subject to change without notice. For latest product information,
please visit Acnodes’ web site at www.acnodes.com. 14628 Central Blvd,
Chino, CA91710
tel:909.597.7588, fax:909.597.1939
DIMM Pitch
This is the physical space between each DIMM module. Each step is in 1/1000 of an inch. The default is [400]. Press "+" or
"-" on your keyboard to change this value.
Intel VT-d
Select Enabled to enable Intel's Virtualization Technology support for Direct I/O VT-d by reporting the I/O device assignments
to VMM through the DMAR ACPI Tables. This feature offers fully-protected I/O resource-sharing across the Intel platforms,
providing the user with greater reliability, security and availability in networking and data-sharing. The settings are Enabled
and Disabled.
SR-IOV Support
Single Root I/O Virtualization is an industry-standard mechanism that allow devices to advertise their capability to be
simultaneously shared among several virtual machines. SR-IOV is capable of partitioning a PCI function into several virtual
interfaces for sharing the resources of a PCI Express (PCIe) device under a virtual environment. The options are Disabled and
Enabled.
Intel I/OAT
The Intel I/OAT (I/O Acceleration Technology) significantly reduces CPU overhead by leveraging CPU architectural improve-
ments, freeing resources for more other tasks. The options are Disabled and Enabled.
Max Payload Size
Some add-on cards perform faster with the coalesce feature, which limits the pay- load size to 128 MB; while others, with a
payload size of 256 MB which inhibits the coalesce feature. Please refer to your add-on card user guide for the desired
setting. The options are 256 MB and 128MB.
Active State Power Management
Select Enabled to start Active-State Power Management for signal transactions between L0 and L1 Links on the PCI Express
Bus. This maximizes power-saving and transaction speed. The options are Enabled and Disabled.
USB Functions
This feature allows the user to decide the number of onboard USB ports to be en- abled. The Options are: Disabled, 2 USB
ports, 4 USB ports, 6 USB ports, 8 USB ports, 10 USB ports and 12 USB ports.
USB 2.0 Controller
Select Enabled to activate the onboard USB2.0 controller. The options are En- abled and Disabled.
Legacy USB Support
Select Enabled to use Legacy USB devices. If this item is set to Auto, Legacy USB support will be automatically enabled if a
legacy USB device is installed on the motherboard, and vise versa. The settings are Disabled, Enabled and Auto.
BIOS EHCI Hand-Off
Select Enabled to enable BIOS Enhanced Host Controller Interface support to provide a workaround solution for an operat-
ing system that does not have EHCI Hand-Off support. When enabled, the EHCI Interface will be changed from the BIOS-
controlled to the OS-controlled. The options are Disabled and Enabled.
XIDE/Floppy Configuration
When this submenu is selected, the AMI BIOS automatically detects the presence of the IDE devices and displays the
following items: