Supero C7X58, User Manual

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Chapter 4: AMI BIOS
4-11
901~1200 (above-), 1201~1500 (above-), 1501~1800 (above-), 1801~2100
(above-), 2101~2400 (above-), 2401~2700 (above-), and 2701~3000 (above-)
the sea level.
DIMM Pitch
Use this feature to specify the distance of 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.
Performance Tuning Mode (Available on the C7X58 only, when both XMP
memory and an Extreme Edition CPU are installed.)
This item allows the user to choose the Intel Extreme Memory Profile (XMP) Speci -
fication which enables DDR3 memory to operate beyond the standard JEDEC SPD
specification. Select XMP for 1600 MHz XMP memory operation and better system
performance. Otherwise, leave this setting at Auto .
High Performance Event Timer
Select Enabled to activate the High Performance Event Timer (HPET) that
produces periodic interrupts at a much higher frequency than a Real-time Clock
(RTC) does in synchronizing multimedia streams, providing smooth playback
and reducing the dependency on other timestamp calculation devices, such as
an x86 RDTSC Instruction embedded in the CPU. The High Performance Event
Timer is used to replace the 8254 Programmable Interval Timer. The options are
Enabled and
Disabled .
HDA Controller
Select Enabled to enable the High-Definition Audio controller. The options are
Enabled and Disabled.
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 .
Intel I/OAT
The Intel I/OAT (I/O Acceleration Technology) significantly reduces CPU
overhead by leveraging CPU architectural improvements, freeing resources for
more other tasks.
Available options are Disabled and Enabled .