BIOS Configuration
44
Throttling – Closed Loop /
Throttling – Open Loop
Throttling improves reliability and reduces power in the processor by automatic
voltage control during processor idle states. Available options are Disabled and
Enabled. If Enabled, the following DIMM-related items appear:
Hysteresis Temperature (Closed Loop only) – Temperature Hysteresis is the
temperature lag (in degrees Celsius) after the set DIMM temperature threshold is
reached before Closed Loop Throttling begins. The options are Disabled, 1.5°C,
3.0°C, and 6.0°C.
Guardband Temperature (Closed Loop only) – This is the temperature that
applies to the DIMM temperature threshold. Each step is in increments of 0.5°C.
The default is [006]. Press “+” or “-” to change this value.
Inlet Temperature – This is the temperature detected at the chassis inlet. Each
step is in increments of 0.5°C. The default is [070]. Press “+” or “-” to change this
value.
Temperature Rise – This is the temperature rise to the DIMM thermal zone. Each
step is in 0.5°C increment. The default is [020]. Press “+” or “-” to change this
value.
Air Flow – This is the air flow speed to the DIMM modules. Each step is one mm/
sec. The default is [1500]. Press “+” or “-” to change this value.
Altitude – This feature defines how many meters above or below sea level the
system is located. The options are Sea Level or Below, 1–300, 301–600, 601–
900, 901–1200, 1201–1500, 1501–1800, 1801–2100, 2101–2400, 2401–2700, and
2701–3000.
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 “-” to change this value.
Intel VT-d Select Enabled to enable Intel’s Virtualization Technology support for Direct I/O VT-d,
which reports 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 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 allows 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.
NUMA Support Select Enabled to use the feature of Non-Uniform Memory Access to improve CPU
performance. The options are Enabled and Disabled.
Intel I/OAT The Intel I/OAT (I/O Acceleration Technology) significantly reduces CPU overhead by
leveraging CPU architectural improvements, freeing resources for other tasks. The
options are Disabled and Enabled.
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 enables you to decide the number of onboard USB ports to be enabled.
The Options are Disabled, 2 USB ports, 4 USB ports, 6 USB ports, 8 USB ports, 10
USB ports and 12 USB ports.
Table 45. Advanced Chipset Control submenu (Continued)
BIOS item Usage
To Next Page
Loading...
