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Win32_SMBIOSMemory class

The Win32_SMBIOSMemory abstract WMI class represents the properties of a computer system memory as seen through the system management BIOS (SMBIOS) interface. The SMBIOS interface does not distinguish between nonvolatile, volatile, and flash memories. The CIM_Memory class is the parent class of all types of memory.

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

Syntax

[Abstract, UUID("{FECB095B-F0FA-11d2-8617-0000F8102E5F}"), AMENDMENT]
class Win32_SMBIOSMemory : CIM_StorageExtent
{
  uint16   Access;
  uint8    AdditionalErrorData[];
  uint16   Availability;
  uint64   BlockSize;
  string   Caption;
  uint32   ConfigManagerErrorCode;
  boolean  ConfigManagerUserConfig;
  boolean  CorrectableError;
  string   CreationClassName;
  string   Description;
  string   DeviceID;
  uint64   EndingAddress;
  uint16   ErrorAccess;
  uint64   ErrorAddress;
  boolean  ErrorCleared;
  uint8    ErrorData[];
  uint16   ErrorDataOrder;
  string   ErrorDescription;
  uint16   ErrorInfo;
  string   ErrorMethodology;
  uint64   ErrorResolution;
  datetime ErrorTime;
  uint32   ErrorTransferSize;
  datetime InstallDate;
  uint32   LastErrorCode;
  string   Name;
  uint64   NumberOfBlocks;
  string   OtherErrorDescription;
  string   PNPDeviceID;
  uint16   PowerManagementCapabilities[];
  boolean  PowerManagementSupported;
  string   Purpose;
  uint64   StartingAddress;
  string   Status;
  uint16e  StatusInfo;
  string   SystemCreationClassName;
  boolean  SystemLevelAddress;
  string   SystemName;
};

Members

The Win32_SMBIOSMemory class has these types of members:

Methods

The Win32_SMBIOSMemory class has these methods.

MethodDescription
Reset

Not implemented. To implement this method, see the Reset method in CIM_StorageExtent.

SetPowerState

Not implemented. To implement this method, see the SetPowerState method in CIM_StorageExtent.

 

Properties

The Win32_SMBIOSMemory class has these properties.

Access
Data type: uint16
Access type: Read-only

Type of access. This property is inherited from CIM_StorageExtent.

ValueMeaning
0

Unknown

1

Readable

2

Writable

3

Read/Write Supported

4

Write Once

 

AdditionalErrorData
Data type: uint8 array
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 18|32-bit Memory Error Information|Vendor Syndrome") , MAX (64)

Array of octets that hold additional error information. An example is Error Checking and Correcting (ECC) Syndrome, or the return of the check bits if a CRC-based error methodology is used. In the latter case, if a single bit error is recognized and the cyclical redundancy check (CRC) algorithm is known, it is possible to determine the exact bit that failed. This type of data (ECC Syndrome, Check Bit or Parity Bit data, or other vendor supplied information) is included in this field. If the ErrorInfo property is equal to 3 (OK), then this property has no meaning.

Availability
Data type: uint16
Access type: Read-only

Availability and status of the device. Inherited from CIM_LogicalDevice.

ValueMeaning
1 (0x1)

Other

2 (0x2)

Unknown

3 (0x3)

Running or Full Power

4 (0x4)

Warning

5 (0x5)

In Test

6 (0x6)

Not Applicable

7 (0x7)

Power Off

8 (0x8)

Off Line

9 (0x9)

Off Duty

10 (0xA)

Degraded

11 (0xB)

Not Installed

12 (0xC)

Install Error

13 (0xD)

Power Save - Unknown

The device is known to be in a power save mode, but its exact status is unknown.

14 (0xE)

Power Save - Low Power Mode

The device is in a power save state but still functioning, and may exhibit degraded performance.

15 (0xF)

Power Save - Standby

The device is not functioning, but could be brought to full power quickly.

16 (0x10)

Power Cycle

17 (0x11)

Power Save - Warning

The device is in a warning state, though also in a power save mode.

 

BlockSize
Data type: uint64
Access type: Read-only

Size in bytes of the blocks that form this storage extent. If unknown or if a block concept is not valid (for example, for aggregate extents, memory or logical disks), enter a 1. This property is inherited from CIM_StorageExtent.

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

Caption
Data type: string
Access type: Read-only
Qualifiers: MaxLen (64)

Short description of the object—a one-line string. This property is inherited from CIM_ManagedSystemElement.

ConfigManagerErrorCode
Data type: uint32
Access type: Read-only

Win32 Configuration Manager error code.

ValueMeaning
0 (0x0)

Device is working properly.

1 (0x1)

Device is not configured correctly.

2 (0x2)

Windows cannot load the driver for this device.

3 (0x3)

Driver for this device might be corrupted, or the system may be low on memory or other resources.

4 (0x4)

Device is not working properly. One of its drivers or the registry might be corrupted.

5 (0x5)

Driver for the device requires a resource that Windows cannot manage.

6 (0x6)

Boot configuration for the device conflicts with other devices.

7 (0x7)

Cannot filter.

8 (0x8)

Driver loader for the device is missing.

9 (0x9)

Device is not working properly. The controlling firmware is incorrectly reporting the resources for the device.

10 (0xA)

Device cannot start.

11 (0xB)

Device failed.

12 (0xC)

Device cannot find enough free resources to use.

13 (0xD)

Windows cannot verify the device's resources.

14 (0xE)

Device cannot work properly until the computer is restarted.

15 (0xF)

Device is not working properly due to a possible re-enumeration problem.

16 (0x10)

Windows cannot identify all of the resources that the device uses.

17 (0x11)

Device is requesting an unknown resource type.

18 (0x12)

Device drivers must be reinstalled.

19 (0x13)

Failure using the VxD loader.

20 (0x14)

Registry might be corrupted.

21 (0x15)

System failure. If changing the device driver is ineffective, see the hardware documentation. Windows is removing the device.

22 (0x16)

Device is disabled.

23 (0x17)

System failure. If changing the device driver is ineffective, see the hardware documentation.

24 (0x18)

Device is not present, not working properly, or does not have all of its drivers installed.

25 (0x19)

Windows is still setting up the device.

26 (0x1A)

Windows is still setting up the device.

27 (0x1B)

Device does not have valid log configuration.

28 (0x1C)

Device drivers are not installed.

29 (0x1D)

Device is disabled. The device firmware did not provide the required resources.

30 (0x1E)

Device is using an IRQ resource that another device is using.

31 (0x1F)

Device is not working properly. Windows cannot load the required device drivers.

 

ConfigManagerUserConfig
Data type: boolean
Access type: Read-only

If TRUE, the device is using a user-defined configuration. This property is inherited from CIM_LogicalDevice.

CorrectableError
Data type: boolean
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 18|32-bit Memory Error Information|Error Type")

If TRUE, the most recent error was correctable. If the ErrorInfo property is equal to 3 (OK), then this property has no meaning.

CreationClassName
Data type: string
Access type: Read-only
Qualifiers: Key, MaxLen (256)

Name of the first concrete class that appears in the inheritance chain used in the creation of an instance. When used with the other key properties of the class, the property allows all instances of this class and its subclasses to be identified uniquely. This property is inherited from CIM_LogicalDevice.

Description
Data type: string
Access type: Read-only

Description of the object. This property is inherited from CIM_ManagedSystemElement.

DeviceID
Data type: string
Access type: Read-only
Qualifiers: Key

Unique identifier of the logical device. This property is inherited from CIM_LogicalDevice.

EndingAddress
Data type: uint64
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 19|Memory Device Mapped Addresses|Ending Address")

Ending address, referenced by an application or operating system and mapped by a memory controller for this memory object. The ending address is specified in kilobytes.

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

ErrorAccess
Data type: uint16
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 18|32-bit Memory Error Information|Error Operation")

Memory access operation that caused the last error. The type of error is described by the ErrorInfo property. If ErrorInfo is equal to 3 (OK), then this property has no meaning.

Other (1)
Unknown (2)
Read (3)
Write (4)
Partial Write (5)
ErrorAddress
Data type: uint64
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 18|32-bit Memory Error Information|Error Address")

Address of the last memory error. The type of error is described by the ErrorInfo property. If ErrorInfo is equal to 3 (OK), then this property has no meaning.

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

ErrorCleared
Data type: boolean
Access type: Read-only

If TRUE, the error reported in LastErrorCode is now cleared. This property is inherited from CIM_LogicalDevice.

ErrorData
Data type: uint8 array
Access type: Read-only
Qualifiers: ArrayType ("Indexed") , MappingStrings ("SMBIOS") , MAX (64)

Array of data captured during the last erroneous memory access. The data occupies the first n octets of the array necessary to hold the number of bits specified by the ErrorTransferSize property. If ErrorTransferSize is 0 (zero), then this property has no meaning.

ErrorDataOrder
Data type: uint16
Access type: Read-only
Qualifiers: MappingStrings ("WMI")

Ordering for data stored in the ErrorData property. If ErrorTransferSize is 0 (zero), then this property has no meaning.

Unknown (0)
Least Significant Byte First (1)
Most Significant Byte First (2)
ErrorDescription
Data type: string
Access type: Read-only

More information about the error recorded in LastErrorCode, and information about any corrective actions that may be taken. This property is inherited from CIM_LogicalDevice.

ErrorInfo
Data type: uint16
Access type: Read-only
Qualifiers: ModelCorrespondence ("CIM_Memory.OtherErrorDescription") , MappingStrings ("SMBIOS|Type 18|32-bit Memory Error Information|Error Type")

Type of error that occurred most recently. The values 12 through 14 are unused. The ability to be corrected is indicated in the property CorrectableError.

Other (1)
Unknown (2)
OK (3)
Bad Read (4)
Parity Error (5)
Single-Bit Error (6)
Double-Bit Error (7)
Multi-Bit Error (8)
Nibble Error (9)
Checksum Error (10)
CRC Error (11)
Corrected single-bit error (12)
Corrected error (13)
Uncorrectable error (14)
ErrorMethodology
Data type: string
Access type: Read-only
Qualifiers: Override ("ErrorMethodology") , MappingStrings ("SMBIOS|Type 16|Physical Memory Array|Memory Error Correction")

Details on the parity or CRC algorithms, ECC or other mechanisms used. This property is inherited from CIM_StorageExtent.

The values are:

"Other"
"Unknown"
"None"
"Parity"
"Single-bit ECC"
"Multi-bit ECC"
"CRC"
Other ("Other")
Unknown ("Unknown")
None ("None")
Parity ("Parity")
Single-bit ECC ("Single-bit ECC")
Multi-bit ECC ("Multi-bit ECC")
CRC ("CRC")
ErrorResolution
Data type: uint64
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 18|32-bit Memory Error Information|Error Resolution") , Units ("bytes")

Range, in bytes, to which the last error can be resolved. For example, if error addresses are resolved to bit 11 (that is, on a typical page basis), then errors can be resolved to 4 KB boundaries and this property is set to 4000. If the ErrorInfo property is equal to 3 (OK), then this property has no meaning.

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

ErrorTime
Data type: datetime
Access type: Read-only
Qualifiers: MappingStrings ("WMI")

Time that the last memory error occurred. The type of error is described by the ErrorInfo property. If the ErrorInfo property is equal to 3 (OK), then this property has no meaning.

ErrorTransferSize
Data type: uint32
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS") , Units ("bits")

Size of the data transfer in bits that caused the last error—0 (zero) indicates no error. If the ErrorInfo property is equal to 3 (OK), then this property should be set to 0 (zero).

InstallDate
Data type: datetime
Access type: Read-only

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.

LastErrorCode
Data type: uint32
Access type: Read-only

Last error code reported by the logical device. This property is inherited from CIM_LogicalDevice.

Name
Data type: string
Access type: Read-only

Label by which the object is known. When subclassed, the property can be overridden to be a key property. This property is inherited from CIM_ManagedSystemElement.

NumberOfBlocks
Data type: uint64
Access type: Read-only

Total number of consecutive blocks, each block the size of the value contained in the BlockSize property, which form this storage extent. Total size of the storage extent can be calculated by multiplying the value of the BlockSize property by the value of this property. If the value of BlockSize is 1, this property is the total size of the storage extent. This property is inherited from CIM_StorageExtent.

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

OtherErrorDescription
Data type: string
Access type: Read-only
Qualifiers: ModelCorrespondence ("CIM_Memory.ErrorInfo") , MappingStrings ("SMBIOS")

Free-form string that provides more information if the ErrorType property is set to 1; otherwise, this string has no meaning.

PNPDeviceID
Data type: string
Access type: Read-only

Windows Plug and Play device identifier of the logical device. This property is inherited from CIM_LogicalDevice.

Example: "*PNP030b"

PowerManagementCapabilities
Data type: uint16 array
Access type: Read-only

Array of the specific power-related capabilities of a logical device. This property is inherited from CIM_LogicalDevice.

ValueMeaning
0 (0x0)

Unknown

1 (0x1)

Not Supported

2 (0x2)

Disabled

3 (0x3)

Enabled

The power management features are currently enabled but the exact feature set is unknown or the information is unavailable.

4 (0x4)

Power Saving Modes Entered Automatically

The device can change its power state based on usage or other criteria.

5 (0x5)

Power State Settable

The SetPowerState method is supported. This method is found on the parent CIM_LogicalDevice class and can be implemented. For more information, see Designing Managed Object Format (MOF) Classes.

6 (0x6)

Power Cycling Supported

The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle).

7 (0x7)

Timed Power-On Supported

The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle) and Time set to a specific date and time, or interval, for power-on.

 

PowerManagementSupported
Data type: boolean
Access type: Read-only

If TRUE, the device can be power-managed (can be put into suspend mode, and so on). The property does not indicate that power management features are currently enabled, only that the logical device is capable of power management. This property is inherited from CIM_LogicalDevice.

Purpose
Data type: string
Access type: Read-only

Free-form string describing the media and its use. This property is inherited from CIM_StorageExtent.

StartingAddress
Data type: uint64
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 19|Memory Device Mapped Addresses|Starting Address")

Beginning address that is referenced by an application or operating system, and mapped by a memory controller for this memory object. The starting address is specified in kilobytes.

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

Status
Data type: string
Access type: Read-only
Qualifiers: MaxLen (10)

Current status of the object. Various operational and nonoperational statuses can be defined. Operational statuses include: "OK", "Degraded", and "Pred Fail" (an element, such as a SMART-enabled hard disk drive, may be functioning properly but predicting a failure in the near future). Nonoperational statuses include: "Error", "Starting", "Stopping", and "Service". The latter, "Service", could apply during mirror-resilvering of a disk, reload of a user permissions list, or other administrative work. Not all such work is online, yet the managed element is neither "OK" nor in one of the other states. This property is inherited from CIM_ManagedSystemElement.

The values are:

"OK"
"Error"
"Degraded"
"Unknown"
"Pred Fail"
"Starting"
"Stopping"
"Service"
"Stressed"
"NonRecover"
"No Contact"
"Lost Comm"
StatusInfo
Data type: uint16e
Access type: Read-only

State of the logical device. If this property does not apply to the logical device, the value 5 (Not Applicable) should be used. This property is inherited from CIM_LogicalDevice.

ValueMeaning
1

Other

2

Unknown

3

Enabled

4

Disabled

5

Not Applicable

 

SystemCreationClassName
Data type: string
Access type: Read-only

Value of the scoping computer's CreationClassName property. This property is inherited from CIM_LogicalDevice.

SystemLevelAddress
Data type: boolean
Access type: Read-only
Qualifiers: MappingStrings ("SMBIOS|Type 18|32-bit Memory Error Information|Error Address")

If TRUE, the address information in the ErrorAddress property is a system-level address. If FALSE, it is a physical address. If the ErrorInfo property is equal to 3 (OK), then this property has no meaning.

SystemName
Data type: string
Access type: Read-only

Name of the scoping system. This property is inherited from CIM_LogicalDevice.

Remarks

The Win32_SMBIOSMemory class is derived from CIM_StorageExtent.

Requirements

Minimum supported client

Windows Vista

Minimum supported server

Windows Server 2003

Namespace

Root\CIMV2

MOF

CIMWin32.mof

DLL

CIMWin32.dll

See also

CIM_StorageExtent
Computer System Hardware Classes

 

 

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