Supero C9X299-PG, User Manual

Page: 79 / 156

Chapter 4: AMI BIOS
4-7
Maximum Memory Frequency
Use this feature to set the maximum memory frequency for onboard
memory modules. The options are
Auto , 1067, 1333, 1600, 1867, 2133,
2400, 2667, 2933, and 3200.
HOB Buffer Size
This feature controls the Handling of Buffers (HOB) buffer size. The op-
tions are
Auto , 1B, 1KB, and Max (assuming 63KB HOB size).
ECC Support
This feature enables or disables support for DDR ECC memory. The op-
tions are Disabled or
Enabled .
SA GV
SpeedStep, also known as System Agent Geyserville. This feature enables
a processor to dynamically enter different P-states in order to control
power consumption. The options are Disabled, Fixed Low, Fixed High,
and
Enabled .
SA GV Low Freq
This feature sets the low point frequency for System Agent Geyserville.
The default for LPDDR3/DDR3 is 1067. The default for DDR4 is 1333.
The general default options is
MRC default .
Retrain on Fast Fail
This feature restarts MRC in Cold mode in the event that a software
MemTest fails during fast flow. The options are Disabled or Enabled .
Command Tristate
This feature enables tri-state logic. Tri-state logic is used to ensure clear
data bit transmissions via Buses. The options are Disabled or
Enabled .
Enable RH Prevention
This feature enables row hammer prevention. The options are Disabled
or
Enabled .
Row Hammer Solution
Select the method used in order to prevent row hammer. The options
are Hardware RHP or 2x Refresh.