CIM_PhysicalMemory class

The CIM_PhysicalMemory class represents low-level memory devices, such as SIMMS, DIMMs, raw memory chips, and so on.

[!Important]
The DMTF (Distributed Management Task Force) CIM (Common Information Model) classes are the parent classes upon which WMI classes are built. WMI currently supports only the CIM 2.x version schemas.

The following syntax is simplified from Managed Object Format (MOF) code and includes all of its inherited properties. Properties are listed in alphabetic order, not MOF order.

Syntax

[abstract, UUID("{FAF76B7B-798C-11D2-AAD1-006008C78BC7}"), AMENDMENT]
class CIM_PhysicalMemory : CIM_Chip
{
  string   BankLabel;
  uint64   Capacity;
  string   Caption;
  string   CreationClassName;
  uint16   DataWidth;
  string   Description;
  uint16   FormFactor;
  boolean  HotSwappable;
  datetime InstallDate;
  uint32   InterleavePosition;
  string   Manufacturer;
  uint16   MemoryType;
  string   Model;
  string   Name;
  string   OtherIdentifyingInfo;
  string   PartNumber;
  uint32   PositionInRow;
  boolean  PoweredOn;
  boolean  Removable;
  boolean  Replaceable;
  string   SerialNumber;
  string   SKU;
  uint32   Speed;
  string   Status;
  string   Tag;
  uint16   TotalWidth;
  string   Version;
};

Members

The CIM_PhysicalMemory class has these types of members:

Properties

The CIM_PhysicalMemory class has these properties.

BankLabel

Data type: string

Access type: Read-only

Qualifiers: MaxLen (64), MappingStrings ("MIF.DMTF|Memory Device|002.4")

Labeled bank in which the memory is located. For example, "Bank 0" or "Bank A".

Capacity

Data type: uint64

Access type: Read-only

Qualifiers: MappingStrings ("MIF.DMTF|Memory Device|002.5"), Units ("bytes")

Total capacity of the physical memory, in bytes.

For more information about using uint64 values in scripts, see Scripting in WMI.

Caption

Data type: string

Access type: Read-only

Qualifiers: MaxLen (64), DisplayName ("Caption")

Short textual description of the object.

This property is inherited from CIM_ManagedSystemElement.

CreationClassName

Data type: string

Access type: Read-only

Qualifiers: CIM_Key, MaxLen (256)

Name of the class or subclass used in the creation of an instance. When used with other key properties of the class, this property allows all instances of the class and its subclasses to be uniquely identified.

This property is inherited from CIM_PhysicalElement.

DataWidth

Data type: uint16

Access type: Read-only

Qualifiers: MappingStrings ("MIF.DMTF|Memory Device|002.8"), Units ("bits")

Data width of the physical memory, in bits. A data width of 0 (zero) , and a total width of 8, indicates that the memory is solely used to provide error correction bits.

Description

Data type: string

Access type: Read-only

Qualifiers: DisplayName ("Description")

Textual description of the object.

This property is inherited from CIM_ManagedSystemElement.

FormFactor

Data type: uint16

Access type: Read-only

Qualifiers: Override ("FormFactor"), MappingStrings ("MIF.DMTF|Memory Device|002.6")

Implementation form factor for the chip. For example, values such as SIMM, TSOP, or PGA can be specified.

This property is inherited from CIM_Chip.

0

Unknown

1

Other

2

SIP

3

DIP

4

ZIP

5

SOJ

6

Proprietary

7

SIMM

8

DIMM

9

TSOP

10

PGA

11

RIMM

12

SODIMM

13

SRIMM

14

SMD

15

SSMP

16

QFP

17

TQFP

18

SOIC

19

LCC

20

PLCC

21

BGA

22

FPBGA

23

LGA

HotSwappable

Data type: boolean

Access type: Read-only

If TRUE, the package can be hot-swapped. A physical package can be hot-swapped if the element can be replaced by a physically different (but equivalent) one while the containing package is turned on. For example, a fan component may be designed to be hot-swapped. All components that can be hot-swapped are inherently removable and replaceable.

This property is inherited from CIM_PhysicalComponent.

InstallDate

Data type: datetime

Access type: Read-only

Qualifiers: MappingStrings ("MIF.DMTF|ComponentID|001.5"), DisplayName ("Install Date")

Date and time the object was installed. This property does not need a value to indicate that the object is installed.

This property is inherited from CIM_ManagedSystemElement.

InterleavePosition

Data type: uint32

Access type: Read-only

Qualifiers: MappingStrings ("MIF.DMTF|Memory Device Mapped Addresses|001.7")

Position of the physical memory in an interleave. A value of 0 indicates non-interleaved, 1 indicates the first position, 2 indicates the second position, and so on. For example, in a 2:1 interleave, a value of 1 indicates that the memory is in the even position.

Manufacturer

Data type: string

Access type: Read-only

Qualifiers: MaxLen (256)

Name of the organization responsible for producing the physical element. For more information, see the Vendor property of CIM_Product.

This property is inherited from CIM_PhysicalElement.

MemoryType

Data type: uint16

Access type: Read-only

Qualifiers: MappingStrings ("MIF.DMTF|Memory Device|002.9")

Type of physical memory.

Unknown (0)

Other (1)

DRAM (2)

Synchronous DRAM (3)

Cache DRAM (4)

EDO (5)

EDRAM (6)

VRAM (7)

SRAM (8)

RAM (9)

ROM (10)

Flash (11)

EEPROM (12)

FEPROM (13)

EPROM (14)

CDRAM (15)

3DRAM (16)

SDRAM (17)

SGRAM (18)

RDRAM (19)

DDR (20)

DDR2 (21)

DDR2 FB-DIMM (22)

Model

Data type: string

Access type: Read-only

Qualifiers: MaxLen (64)

Name by which the physical element is generally known.

This property is inherited from CIM_PhysicalElement.

Name

Data type: string

Access type: Read-only

Qualifiers: DisplayName ("Name")

Label by which the object is known. When subclassed, this property can be overridden to be a key property.

This property is inherited from CIM_ManagedSystemElement.

OtherIdentifyingInfo

Data type: string

Access type: Read-only

Additional data, beyond asset tag information, that can be used to identify a physical element. One example is bar-code data that is associated with an element, which also has an asset tag. Note that if only bar-code data is available, and is unique and able to be used as an element key, this property would be null and the bar-code data would be used as the class key in the Tag property. This property is inherited from CIM_PhysicalElement.

PartNumber

Data type: string

Access type: Read-only

Qualifiers: MaxLen (256)

Part number assigned by the organization that produced or manufactured the physical element.

This property is inherited from CIM_PhysicalElement.

PositionInRow

Data type: uint32

Access type: Read-only

Qualifiers: MappingStrings ("MIF.DMTF|Memory Device Mapped Addresses|001.6")

Position of the physical memory in a row. For example, if it takes two 8-bit memory devices to form a 16-bit row, then a value of 2 indicates that the memory is the second device. A value of 0 is an invalid value for this property.

PoweredOn

Data type: boolean

Access type: Read-only

If TRUE, the physical element is powered on.

This property is inherited from CIM_PhysicalElement.

Removable

Data type: boolean

Access type: Read-only

If TRUE, this element is designed to be taken in and out of the physical container in which it is normally found, without impairing the function of the overall packaging. A package is considered removable even if the power must be off to perform the removal. If the power can be on and the package removed, then the element is removable and can be hot-swapped. For example, an ungradable processor chip is removable.

This property is inherited from CIM_PhysicalComponent.

Replaceable

Data type: boolean

Access type: Read-only

If TRUE, it is possible to replace the element with a physically different one. For example, some computer systems allow the main processor chip to be upgraded to one of a higher clock rating. In this case, the processor is said to be replaceable. All removable components are inherently replaceable.

This property is inherited from CIM_PhysicalComponent.

SerialNumber

Data type: string

Access type: Read-only

Qualifiers: MaxLen (64)

Manufacturer-allocated number used to identify the physical element.

This property is inherited from CIM_PhysicalElement.

SKU

Data type: string

Access type: Read-only

Qualifiers: MaxLen (64)

Stock-keeping unit number for the physical element.

This property is inherited from CIM_PhysicalElement.

Speed

Data type: uint32

Access type: Read-only

Qualifiers: Units ("nanoseconds")

Speed of the physical memory, in nanoseconds.

Status

Data type: string

Access type: Read-only

Qualifiers: MaxLen (10), DisplayName ("Status")

Current status of the object. This property is inherited from CIM_ManagedSystemElement.

Values include the following:

OK ("OK")

Error ("Error")

Degraded ("Degraded")

Unknown ("Unknown")

Pred Fail ("Pred Fail")

Starting ("Starting")

Stopping ("Stopping")

Service ("Service")

Stressed ("Stressed")

NonRecover ("NonRecover")

No Contact ("No Contact")

Lost Comm ("Lost Comm")

Tag

Data type: string

Access type: Read-only

Qualifiers: CIM_Key, MaxLen (256)

Arbitrary string that uniquely identifies the physical element and serves as the element's key. This property can contain information, such as asset tag or serial number data. The key for CIM_PhysicalElement is placed very high in the object hierarchy to independently identify the hardware or entity, regardless of physical placement in (or on) cabinets, adapters, and so on. For example, a removable component that can be hot-swapped can be taken from its containing (scoping) package and be temporarily unused. The object still continues to exist and can even be inserted into a different scoping container. The key for a physical element is an arbitrary string that is defined independently of placement or location-oriented hierarchy.

This property is inherited from CIM_PhysicalElement.

TotalWidth

Data type: uint16

Access type: Read-only

Qualifiers: MappingStrings ("MIF.DMTF|Memory Device|002.7"), Units ("bits")

Total width, in bits, of the physical memory, including check or error correction bits. If there are no error correction bits, the value in this property should match that specified for the DataWidth property.

Version

Data type: string

Access type: Read-only

Qualifiers: MaxLen (64)

Version of the physical element.

This property is inherited from CIM_PhysicalElement.

Remarks

The CIM_PhysicalMemory class is derived from CIM_Chip.

WMI does not implement this class. For WMI classes derived from CIM_PhysicalMemory, see Win32 Classes.

This documentation is derived from the CIM class descriptions published by the DMTF. Microsoft may have made changes to correct minor errors, conform to Microsoft SDK documentation standards, or provide more information.

Requirements

Minimum supported client
Windows Vista
Minimum supported server
Windows Server 2008
Namespace
Root\CIMV2
MOF
CIMWin32.mof
DLL
CIMWin32.dll

See also

CIM_Chip