Technical specifications
8.7 BIOS description
SIMATIC IPC427D
158
Operating Instructions, 05/2017, A5E31347215-AB
"Advanced CPU Control" submenu
Entry
Meaning
AES
When activated (Enabled), AES (Advanced Encryption Stand-
ard) secure encryption is supported by the hardware which
speeds up encryption and decryption.
P-states (ACTUAL)
Enables the processor performance modes (Enabled).
HT Support
If possible, uses hyperthreading (Auto) or deactivates hyper-
threading (Disabled).
Use XD Capability
Allows you to prevent program execution in specific memory
areas (virus protection). The function eXecute Disable Bit (XD
bit) is only effective if it is supported by the operating system.
If it is activated (Enabled), the operating system can activate the
XD bit. If the entry is not activated (Disabled), the operating
system is unable to activate the XD bit function.
VT Support
Enables or disables the virtualization functionality "Vanderpool
Technology".
C-states
Enables (Enabled) energy-saving processor modes for idle
operation (idle state).
Turbo Mode
Activates processor turbo mode (Enabled). Requires EMTTM.
Turbo Mode Level
Select "Temperature optimized" if you are using the device in
higher ambient temperatures. As a result, the CPU power con-
sumption is reduced in favor of a higher permissible ambient
temperature.