Artesyn ATCA-8310 Installation and Use (May 2014) - Manual (Page 120)

BIOS
ATCA-8310 Installation and Use (6806800M72E) 120
Table 5-10 CPU Configuration Field Description
Field Description
New Max Non-Turbo
Rat(io) The value can be inclusively between Max Efficiency and Max Non-Turbo
Ratio. 0 means using the Max Efficiency Ratio, 255 means using the Max
Non-Turbo Ratio
> Power & Performance Power & Performance Options
Execute Disable Bit XD can prevent certain classes of malicious buffer overflow attacks when
combined with a supporting OS (Windows Server 2003 SP1, Windows XP
SP2, SuSE Linux 9.2, RedHat Enterprise 3 Update 3.)
Hyper-Threading Enabled for Windows XP and Linux (OS optimized for Hyper-Threading
Technology) and Disabled for other OS (OS not optimized for Hyper-
Threading Technology).
Active Processor Core Number of cores to enable in each processor package.
Limit CPUID Maximum Disabled for Windows XP
Hardware Prefetcher To turn on/off the MLC streamer prefetcher.
Adjacent Cache Line
P(refetch) To turn on/off prefetching of adjacent cache lines.
Intel Virtualization When enabled, a VMM can utilize the additional hardware capabilities
provided by Vanderpool Technology
Intel Trusted Executi(on
Technology) Enables utilization of additional hardware capabilities provided by Intel
(R) Trusted Execution Technology. Changes require a full power cycle to
take effect.
EIST Enable/Disable Intel SpeedStep
Enhanced Debug Disabled for normal system operation, Enabled for test environments.
Three Strike Counter To enable/disable Three Strike counter.
AES New Instruction To enable/disable AES New Instruction.