Supermicro MicroBlade MBI-6119M-C2, User Manual

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5-15
Chapter 5: BIOS
Table 5-10. ACPI Settings Sub-menu
Menu Option Description
WHEA Support
This feature Enables the Windows Hardware Error Architecture (WHEA)
support for the Windows 2008 (or a later vision) operating system. The
options are
Enabled and Disabled.
High Precision 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.
Table 5-11. USB Configuration Sub-menu
Menu Option Description
USB Configuration
Informaion
Static information is displayed showing the current USB configuration.
Legacy USB Support
This setting enables/disables legacy USB support. The Auto option
disables legacy support if no USB devices are connected. The Disable
option will keep USB devices available only for EFI applictions. Options
include
Enabled , Disabled and Auto.
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI
ownership change should be claimed by the XHCI driver. Options include
Enabled and Disabled.
USB Mass Storage Driver
Support
This setting Enables /Disables USB Mass Storage Driver support.
Port 60/64 Emulation
This setting enables the I/O port 60h/64h emulation support. This should
be enabled for the complete USB keyboard legacy support for non-USB
aware OSes. Options include
Enabled and Disabled.
USB Transfer time-out
This setting allows you to specify the time-out value for Control, Bulk and
Interrupt transferes. Options include 1 sec, 5 sec, 10 sec and
20 sec .
Device Reset time-out
This setting allows you to specify the USB mass storage device Start Unit
Command time-out. Options include 10 sec,
20 sec , 30 sec and 40 sec.
Device power-up delay
This setting specifies the maximum time the device will take before it
properly reports itself to the host controller. The Auto option uses the
default value for Root port of 100 ms, for a Hub port the delay is taken form
the Hub describer. Options include
Auto and Manual.
Table 5-12. PCIe/PCI/PnP Configuration Sub-menu
Menu Option Description
PCI Bus Driver Version This displays the PCI Bus Driver Version for your system.
PCI Latency Timer
This specifies the value to be programmed into the PCI Latency Timer
Register. Options include values that range from
32 PCI Bus Clocks to
248 PCI Bus Clocks.
PERR# Generation Enables or Disables PCI device to generate PERR#.