Memory Config
This section describes system parameters and function control on the Memory Config screen.
Figure 4-5 shows the Memory Config screen. Table 4-3 describes the parameters.
When the BBU is in position, modifying parameters on the Memory Config screen will cause data loss in the battery-protected memory.
Parameter |
Description |
Default Value |
|---|---|---|
Memory Frequency |
Configures the memory speed. The options are as follows:
|
Auto |
Custom Refresh Enabled |
Sets whether to enable the function for customizing the memory refresh rate. The options are as follows:
|
Enable |
Custom Refresh Rate |
Specifies the memory refresh rate. The options are as follows:
|
32ms |
Rank Margin Tool |
The rank margin tool (RMT) determines whether to conduct a margin test (on the memory timings and voltage signals). The options are as follows:
|
Disable |
RMT Pattern Length |
RMT pattern length is configurable when a margin test (on the memory timings and voltage signals) is enabled. The value ranges from 1 to 32767. NOTE:
This parameter is displayed when Rank Margin Tool is set to Enable. |
1 |
Per Bit Margin |
The parameter is configurable when the Margin test (which tests the memory timings and voltage signals) is enabled, and determines the margin test granularity (per rank or per bit). The options are as follows:
NOTE:
This parameter is displayed when Rank Margin Tool is set to Enable. |
Disable |
CA Margin |
Indicates whether a command line/address line margin test is performed. The options are as follows:
NOTE:
This parameter is displayed when Rank Margin Tool is set to Enable. |
Disable |
Die Interleaving |
Determines whether to enable DIE interleaving. When the DIE interleaving is enabled, the DDR bandwidth can be fully used and the bandwidth of each DDR channel can be balanced to improve the DDR usage efficiency. The options are as follows:
|
Disable |
Channel Interleaving |
Determines whether memory channels can be interconnected with each other. |
Enable |
Channel Interleaving 3Way |
Determines whether three memory channels can be interconnected with each other. The options are as follows:
|
Enable |
Rank Interleaving |
Sets the rank interleaving mode. The options are as follows:
|
4-way Interleave |
NUMA |
Determines whether the non-uniform memory access (NUMA) can be enabled. The options are as follows:
|
Enable |
Skt Interleaving |
Enables or disables the cross-CPU interleaving function. After this function is enabled, memory resources can be evenly allocated among CPUs to resolve bandwidth and latency issues. The options are as follows:
NOTE:
|
Disable |
One Numa Per Socket |
Enables or disables one NUMA for each CPU. The options are as follows:
NOTE:
|
Disabled |
CKE Power Down |
Enables or disables the CKE power signal shutdown function. The options are as follows:
|
Disable |
CKE Idle Timer |
Sets the CKE idle timer. The unit is DCLK, and the value ranges from 1 to 4095. NOTE:
This parameter is available only when CKE Power Down is set to Enable. |
20 |
Memory Test |
Sets whether to enable the memory test during fast boot. The options are as follows:
|
Enable |
Warm Boot Fast Support |
Enables or disables the fast boot of warm reset. The options are as follows:
|
Enabled |
Cold Boot Fast Support |
Enables or disables the fast boot of cold reset. The options are as follows:
|
Enabled |
Memory Init Type |
Sets the memory initialization type. The options are as follows:
NOTE:
TaiShan 200 servers (models XA320 and XA320C) do not support this parameter. |
Parallel |
Halt On Memory Error |
Controls whether to disable memory initialization when an error occurs. The options are as follows:
|
Disable |
Exmbist Supports |
Controls whether to perform a memory Exmbist test during cold boot. The options are as follows:
|
Disable |
Multi-Bank Error Threshold |
The following message is added to Exmbist Supports:
|
65535 |
Memory Topology |
Displays memory topology information. |
N/A |
Figure 4-6 shows the Memory Topology screen. Table 4-4 describes the parameters.
The Memory Topology screen may vary according to the server.
Parameter |
Description |
Default Value |
|---|---|---|
DIMMxyz |
Displays the memory capacity, dominant frequency, and manufacturer.
NOTE:
NO DIMM indicates that no DIMM is installed in the slot. |
N/A |