Technical Product Specification

Intel® Server System SC5650HCBRP TPS Functional Architecture
Revision 1.2
Intel order number E81443-002
27
Error Severity System Action
Processor microcode
missing
Minor The BIOS detects the error condition and responds as follows:
– Logs the error into the SEL.
– Does not disable the processor.
– Displays “8180: Processor 0x microcode update not found” message
in the Error Manager or on the screen.
– The system continues to boot in a degraded state, regardless of the
setting of POST Error Pause in Setup.
3.2.3 Intel
®
Hyper-Threading Technology (Intel
®
HT)
If the installed processor supports the Intel
®
Hyper-Threading Technology, the BIOS Setup
provides an option to enable or disable this feature. The default is enabled.
The BIOS creates additional entries in the ACPI MP tables to describe the virtual processors.
The SMBIOS Type 4 structure shows only the installed physical processors. It does not
describe the virtual processors.
Because some operating systems are not able to efficiently use the Intel
®
HT Technology, the
BIOS does not create entries in the Multi-Processor Specification, Version 1.4 tables to describe
the virtual processors.
3.2.4 Enhanced Intel SpeedStep
®
Technology (EIST)
If the installed processor supports the Enhanced Intel SpeedStep
®
Technology, the BIOS Setup
provides an option to enable or disable this feature. The Default is enabled.
3.2.5 Intel
®
Turbo Boost Technology
Intel
®
Turbo Boost Technology opportunistically and automatically allows the processor to run
faster than the marked frequency if the part is operating below power, temperature, and current
limits.
If the processor supports this feature, the BIOS setup provides an option to enable or disable
this feature. The default is enabled.
3.2.6 Execute Disable Bit Feature
The Execute Disable Bit feature (XD bit) can prevent data pages from being used by malicious
software to execute code. A processor with the XD bit feature can provide memory protection in
one of the following modes:
z Legacy protected mode if Physical Address Extension (PAE) is enabled.
z Intel
®
64 mode when 64-bit extension technology is enabled (Entering Intel
®
64
mode requires enabling PAE).
You can enable and disable the XD bit in the BIOS Setup. The default behavior is enabled.