Set DIMM Info
更新时间： 2026/08/06
在Gitcode上查看源码Set DIMM Info
Change History
| openUBMC Version | Revision Date | Description |
|---|---|---|
| 25.06 | 2025/06/26 | Initial draft: add command details |
Basic Information
Function Description
This command is used to set memory types and additional information.
This command is used by the BIOS to notify the BMC of various types of DIMMs and related auxiliary information. The information cannot be displayed on the SMBIOS.
Privilege
Command Information
Request Information
| Byte | Data Field |
|---|---|
| NetFn | 30h |
| CMD | 92h |
| 1:3 | Manufacturer ID, LS Byte first. The length is fixed to three bytes. For example, if the vendor ID is 2011 and the corresponding hexadecimal value is 0x0007DB, the first byte is DBh, the second byte is 07h, and the third byte is 00h. |
| 4 | Sub command: 2 Ah |
| 5 | DIMM num Specifies the number of DIMMs whose memory information is displayed in the IPMI message. |
| 6 | Length of the first piece of memory information (starting from the DIMM type) |
| 7 | DIMM Type Memory type 1: common memory 2:AEP 3:NVDIMM |
| 8~10 | First memory location Byte 8: CPU ID or node ID Byte 9: channel ID Byte 10: DIMM ID |
| (11-N) | Other information about the first memory record For NVDIMM: Byte 11: indicates the presence information about a supercapacitor. 1: yes 0: not in position Other memory: None. Leave it blank. |
| N+1 | Length of the second piece of DIMM information |
| N+2 | Type of the second DIMM |
| N+3~N+5 | Position of the second DIMM |
| (N+6~M) | Other information about the second DIMM |
| ~ | Other DIMM information in the preceding format |
Response Information
| Byte | Data Field |
|---|---|
| 1 | Completion Code |
| 2:4 | Manufacturer ID, LS Byte first. The length is fixed to three bytes. For example, if the vendor ID is 2011 and the corresponding hexadecimal value is 0x0007DB, the first byte is DBh, the second byte is 07h, and the third byte is 00h. |
Command Example
Set the slot ID of common DIMM DIMM000.
Request:
bash
ipmicmd -k "0f 00 MM NN" smi 0Response:
text
0f MM NN