Supermicro C9Z790-CG - Page 103

Chapter 4: UEFI BIOS
103
Memory conguration
The following memory information will be displayed:
• Memory RC Version
• Memory Frequency
• Memory Timings (tCL-tRCD-tRP-tRAS)
• DIMMA1 / DIMMA2 / DIMMB1 / DIMMB2
Maximum Memory Frequency
This feature selects the type/speed of the memory installed. The default is Auto and all
values are in MHz.
Max TOLUD (Top of Low Usable DRAM)
This feature sets the maximum TOLUD value, which species the "Top of Low Usable
DRAM" memory space to be used by internal graphics devices, GTT Stolen Memory, and
TSEG, respectively, if these devices are enabled. The options are Dynamic, 1 GB, 1.25
GB, 1.5 GB, 1.75 GB, 2 GB, 2.25 GB, 2.5 GB, 2.75 GB, 3 GB, 3.25 GB, and 3.5 GB.
Note: TSEG is a block of memory that is only accessible by the processor while operat-
ing in System Management Mode (SMM).
Memory Scrambler
This feature enables memory scrambler support for memory error correction. The options
are Disabled and Enabled.
Force ColdReset
Use this feature when ColdBoot is required during MRC execution. The options are Enabled
and Disabled.
Force Single Rank
When enabled, only Rank0 will be use in each DIMM. The options are Disabled and
Enabled.
Memory Remap
PCI memory resources will overlap with the total physical memory if 4GB of memory (or
above) is installed on the motherboard. When this occurs, enable this function to reallocate
the overlapped physical memory to a location above the total physical memory to resolve
the memory overlap-ping situation. The options are Enabled and Disabled.
MRC Fast Boot
This feature enables or disables fast path through MRC. The options are Disabled and
Enabled.