Chapter 4: BIOS Setup
60
AES-NI
Disable
Enable
Enable/disable AES-NI support
PECI Enable
Disable
Enable
Enable/disable Punit PECI support
PECI Trusted
Disable
Enable
Enable/disable Punit Trusted PECI support
PECI SMBus Speed
Standard (80
kHz)
Standard (100
kHz)
Fast Mode
(400 kHz)
Fast Mode
Plus (1 MHz)
PECI SMBus Speed: Value to indicate what speed physical
bus must operate.
Turbo
Disable
Enable
Enable or Disable CPU Turbo capability. This option only
applies to ES2 and above.
RAPL
Enable
Enable or Disable CPU RAPL capability. This option only
applies to ES2 and above.
MSR 670
PKG_TURBO_CFG
40c001
Specifies various parameters used for Turbo, Min Energy
[28:16], SoC TDP Policy [11:9], ICCMax Control [4:3], Turbo
Mode [2:0] and others
MSR 672
TURBO_WKLD_CF
0
Specifies ICCMax Throttle Ratio for C6 exits when
PKG_TURBO_CFG1[4:3] == 10y
Active Processor
Core
All
4
2
Number of cores to
enable in SoC package.
CPU Flex Ratio
Disable
Enable
Enable/Disable CPU Flex Ratio Programming
CPU Core Ratio
24
ACPI 3.0 T-States
Disable
Enable
Enable/Disable EIST. GV3 and TM1 must be enabled for TM2
to be available. GV3 must be enabled for Turbo. Auto - Enable
for B0 CPU stepping, all others disabled, change setting to
override.
