Intel RSD Memory Device Extended Information (Type 197)

Source: Intel® RSD Firmware Extension Specification Software v2.3.2 (document 337201-003US), section 3.8.

Extends the memory device information (type 17) with the kind of the memory module, its firmware, its power and the SMBus address it is managed at. Every structure belongs to a memory device structure of the table.

Table 1. Intel RSD Memory Device Extended Information structure
Offset	Version	Name	Length	Value	Description
`0x00`	2.0+	Type	`BYTE`	`197`	Memory Device Extended Information indicator
`0x01`	2.0+	Length	`BYTE`	Varies	Length of the structure
`0x02`	2.0+	Handle	`WORD`	Varies
`0x04`	2.0+	Memory Device Handle	`WORD`	`HANDLE`	Memory device structure (type 17) the structure extends
`0x06`	2.0+	Memory Type	`BYTE`	`ENUM`	Kind of the memory module, see Memory types
`0x07`	2.0+	Memory Media	`BYTE`	`ENUM`	Media the memory is built on, see Memory media
`0x08`	2.0+	Memory Firmware Revision	`BYTE`	`STRING`	Revision of the firmware of the memory module
`0x09`	2.0+	Memory Firmware API Version	`BYTE`	`STRING`	Version of the interface the firmware of the memory module provides
`0x0A`	2.0+	Max TDP	`DWORD`	`NUMBER`	Highest power the memory module consumes, its thermal design power, in milliwatts
`0x0E`	2.0+	Memory System Management Model (SMBus) Address	`BYTE`	`NUMBER`	SMBus address of the memory module, which gives access to its serial presence detect (SPD) data or to the firmware interface of a 3D XPoint module. The management software passes it on to Intel Intelligent Power Node Manager to query the memory subsystem.

1. Intel RSD Memory Device Extended — Memory types

Table 2. Intel RSD Memory Device Extended: Memory type field
Hex Value	Dec Value	Meaning
`0x00`	`0`	DIMM
`0x01`	`1`	NVDIMM-N, persistent memory accessed by bytes
`0x02`	`2`	NVDIMM-F, persistent memory accessed by blocks
`0x03`	`3`	NVDIMM-P

2. Intel RSD Memory Device Extended — Memory media

Table 3. Intel RSD Memory Device Extended: Memory media field
Hex Value	Dec Value	Meaning
`0x00`	`0`	DRAM
`0x01`	`1`	NAND
`0x03`	`3`	Proprietary

The specification defines no value 0x02 for the memory media.