User Manual

4-12
Chapter 4: BIOS Setup
The following items appear only when you set SGX Launch Control Policy to [Locked].
SGX LE Public Key Hash 0-3 [0]
Allows you to set the Bytes of the Software Guard Extensions (SGX)
Launch Enclave Public Key Hash.
The following item appears only when you set Software Guard Extensions (SGX) to
[Enabled].
PRMRR Size [128MB]
Allows you to set the PRMMR Size.
Congurationoptions:[32MB][64MB][128MB]
CPU Flex Ratio Override [Disabled]
Allows you to enable or disable CPU Flex Ratio Override.
Congurationoptions:[Disabled][Enabled]
The following item appears only when you set CPU Flex Ratio Override to [Enabled].
CPU Flex Ratio Settings [33]
Allows you to set the CPU Flex Ratio.
ThisvaluemustbebetweentheMaxEfciencyRatio(LFM)andtheMaximumnon-
turboratiosetbytheHardware(HFW).
Hardware Prefetcher [Enabled]
This Item allows you to turn on/off the MLC streamer prefetcher.
Congurationoptions:[Disabled][Enabled]
Adjacent Cache Prefetch [Enabled]
This Item allows you to turn on/off prefetching of adjacent cache lines.
Congurationoptions:[Disabled][Enabled]
Intel (VMX) Virtualization Technology [Enabled]
Enable this item to allow a VMM to utilize the additional hardware capabilities provided by
Vanderpool Technology.
Congurationoptions:[Disabled][Enabled]
Active Processor Cores [All]
Thisitemallowsyoutosetthenumberofcorestoenableineachprocessorpackage.
Congurationoptions:[All][1][2][3][4][5]
BIST [Disabled]
Allows you to enable or disable BIST (Built-In Self Test) on reset.
Congurationoptions:[Disabled][Enabled]
AES [Enabled]
Allows you to enable or disable AES (Advanced Encryption Standard).
Congurationoptions:[Disabled][Enabled]