Win32_Fan class
The Win32_Fan WMI class represents the properties of a fan device in the computer system. For example, the CPU cooling fan.
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
[Dynamic, Provider("CIMWin32"), UUID("{464FFAB5-946F-11d2-AAE2-006008C78BC7}"), AMENDMENT]
class Win32_Fan : CIM_Fan
{
boolean ActiveCooling;
uint16 Availability;
string Caption;
uint32 ConfigManagerErrorCode;
boolean ConfigManagerUserConfig;
string CreationClassName;
string Description;
uint64 DesiredSpeed;
string DeviceID;
boolean ErrorCleared;
string ErrorDescription;
datetime InstallDate;
uint32 LastErrorCode;
string Name;
string PNPDeviceID;
uint16 PowerManagementCapabilities[];
boolean PowerManagementSupported;
string Status;
uint16 StatusInfo;
string SystemCreationClassName;
string SystemName;
boolean VariableSpeed;
};
Members
The Win32_Fan class has these types of members:
Methods
The Win32_Fan class has these methods.
| Method | Description |
|---|---|
| Reset | Not implemented. To implement this method, see the Reset method in CIM_Fan for documentation. |
| SetPowerState | Not implemented. To implement this method, see the SetPowerState method in CIM_Fan for documentation. |
| SetSpeed | Not implemented. |
Properties
The Win32_Fan class has these properties.
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ActiveCooling
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Data type: boolean
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Access type: Read-only
If True, the cooling device provides active (as opposed to passive) cooling.
This property is inherited from CIM_CoolingDevice.
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Availability
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Data type: uint16
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Access type: Read-only
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Qualifiers: MappingStrings ("MIF.DMTF|Operational State|003.5", "MIB.IETF|HOST-RESOURCES-MIB.hrDeviceStatus")
Availability and status of the device.
This property is inherited from CIM_LogicalDevice.
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Other (1)
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Unknown (2)
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Running/Full Power (3)
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Running or Full Power
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Warning (4)
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In Test (5)
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Not Applicable (6)
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Power Off (7)
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Off Line (8)
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Off Duty (9)
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Degraded (10)
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Not Installed (11)
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Install Error (12)
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Power Save - Unknown (13)
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The device is known to be in a power save mode, but its exact status is unknown.
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Power Save - Low Power Mode (14)
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The device is in a power save state but still functioning, and may exhibit degraded performance.
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Power Save - Standby (15)
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The device is not functioning, but could be brought to full power quickly.
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Power Cycle (16)
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Power Save - Warning (17)
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The device is in a warning state, though also in a power save mode.
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Paused (18)
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The device is paused.
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Not Ready (19)
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The device is not ready.
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Not Configured (20)
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The device is not configured.
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Quiesced (21)
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The device is quiet.
Caption
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (64), DisplayName ("Caption")
Short description of the object a one-line string.
This property is inherited from CIM_ManagedSystemElement.
ConfigManagerErrorCode
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Data type: uint32
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Access type: Read-only
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Qualifiers: Schema ("Win32")
Win32 Configuration Manager error code.
This property is inherited from CIM_LogicalDevice.
This device is working properly. (0)
Device is working properly.
This device is not configured correctly. (1)
Device is not configured correctly.
Windows cannot load the driver for this device. (2)
The driver for this device might be corrupted, or your system may be running low on memory or other resources. (3)
Driver for this device might be corrupted, or the system may be low on memory or other resources.
This device is not working properly. One of its drivers or your registry might be corrupted. (4)
Device is not working properly. One of its drivers or the registry might be corrupted.
The driver for this device needs a resource that Windows cannot manage. (5)
Driver for the device requires a resource that Windows cannot manage.
The boot configuration for this device conflicts with other devices. (6)
Boot configuration for the device conflicts with other devices.
Cannot filter. (7)
The driver loader for the device is missing. (8)
Driver loader for the device is missing.
This device is not working properly because the controlling firmware is reporting the resources for the device incorrectly. (9)
Device is not working properly. The controlling firmware is incorrectly reporting the resources for the device.
This device cannot start. (10)
Device cannot start.
This device failed. (11)
Device failed.
This device cannot find enough free resources that it can use. (12)
Device cannot find enough free resources to use.
Windows cannot verify this device's resources. (13)
Windows cannot verify the device's resources.
This device cannot work properly until you restart your computer. (14)
Device cannot work properly until the computer is restarted.
This device is not working properly because there is probably a re-enumeration problem. (15)
Device is not working properly due to a possible re-enumeration problem.
Windows cannot identify all the resources this device uses. (16)
Windows cannot identify all of the resources that the device uses.
This device is asking for an unknown resource type. (17)
Device is requesting an unknown resource type.
Reinstall the drivers for this device. (18)
Device drivers must be reinstalled.
Failure using the VxD loader. (19)
Your registry might be corrupted. (20)
Registry might be corrupted.
System failure: Try changing the driver for this device. If that does not work, see your hardware documentation. Windows is removing this device. (21)
System failure. If changing the device driver is ineffective, see the hardware documentation. Windows is removing the device.
This device is disabled. (22)
Device is disabled.
System failure: Try changing the driver for this device. If that doesn't work, see your hardware documentation. (23)
System failure. If changing the device driver is ineffective, see the hardware documentation.
This device is not present, is not working properly, or does not have all its drivers installed. (24)
Device is not present, not working properly, or does not have all of its drivers installed.
Windows is still setting up this device. (25)
Windows is still setting up the device.
Windows is still setting up this device. (26)
Windows is still setting up the device.
This device does not have valid log configuration. (27)
Device does not have valid log configuration.
The drivers for this device are not installed. (28)
Device drivers are not installed.
This device is disabled because the firmware of the device did not give it the required resources. (29)
Device is disabled. The device firmware did not provide the required resources.
This device is using an Interrupt Request (IRQ) resource that another device is using. (30)
Device is using an IRQ resource that another device is using.
This device is not working properly because Windows cannot load the drivers required for this device. (31)
Device is not working properly. Windows cannot load the required device drivers.
ConfigManagerUserConfig
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Data type: boolean
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Access type: Read-only
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Qualifiers: Schema ("Win32")
If True, the device is using a user-defined configuration.
This property is inherited from CIM_LogicalDevice.
CreationClassName
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Data type: string
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Access type: Read-only
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Qualifiers: CIM_Key
Name of the first concrete class to appear 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
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Data type: string
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Access type: Read-only
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Qualifiers: DisplayName ("Description")
Description of the object.
This property is inherited from CIM_ManagedSystemElement.
DesiredSpeed
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Data type: uint64
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Access type: Read-only
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Qualifiers: Units ("revolutions per minute")
Currently requested fan speed, defined in revolutions per minute, when a variable speed fan is supported (VariableSpeed is TRUE). The current speed is determined by a sensor (CIM_Tachometer) that is associated with the fan using the CIM_AssociatedSensor relationship.
This property is inherited from CIM_Fan.
For more information about using uint64 values in scripts, see Scripting in WMI.
DeviceID
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Data type: string
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Access type: Read-only
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Qualifiers: Key, Override ("DeviceId"), MappingStrings ("WMI")
Identifies the fan device. This property is inherited from CIM_LogicalDevice.
ErrorCleared
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Data type: boolean
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Access type: Read-only
If True, the error reported in the LastErrorCode property is now cleared.
This property is inherited from CIM_LogicalDevice.
ErrorDescription
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Data type: string
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Access type: Read-only
Free-form string supplying more information about the error recorded in LastErrorCode property, and information on any corrective actions that may be taken.
This property is inherited from CIM_LogicalDevice.
InstallDate
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Data type: datetime
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Access type: Read-only
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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.
LastErrorCode
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Data type: uint32
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Access type: Read-only
Last error code reported by the logical device.
This property is inherited from CIM_LogicalDevice.
Name
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Data type: string
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Access type: Read-only
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Qualifiers: DisplayName ("Name")
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.
PNPDeviceID
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Data type: string
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Access type: Read-only
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Qualifiers: Schema ("Win32")
Windows Plug and Play device identifier of the logical device.
This property is inherited from CIM_LogicalDevice.
Example: "*PNP030b"
PowerManagementCapabilities
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Data type: uint16 array
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Access type: Read-only
Array of the specific power-related capabilities of a logical device.
This property is inherited from CIM_LogicalDevice.
Unknown (0)
Not Supported (1)
Power-related capacities are not supported for this device.
Disabled (2)
Enabled (3)
The power management features are currently enabled but the exact feature set is unknown or the information is unavailable.
Power Saving Modes Entered Automatically (4)
The device can change its power state based on usage or other criteria.
Power State Settable (5)
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.
Power Cycling Supported (6)
The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle).
Timed Power On Supported (7)
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
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Data type: boolean
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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.
Status
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (10), DisplayName ("Status")
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.
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")
StatusInfo
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Data type: uint16
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Access type: Read-only
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Qualifiers: MappingStrings ("MIF.DMTF|Operational State|003.3")
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.
Other (1)
Unknown (2)
Enabled (3)
Disabled (4)
Not Applicable (5)
SystemCreationClassName
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Data type: string
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Access type: Read-only
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Qualifiers: Propagated ("CIM_System.CreationClassName"), CIM_Key
Value of the scoping computer's CreationClassName property.
This property is inherited from CIM_LogicalDevice.
SystemName
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Data type: string
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Access type: Read-only
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Qualifiers: Propagated ("CIM_System.Name"), CIM_Key
Name of the scoping system.
This property is inherited from CIM_LogicalDevice.
VariableSpeed
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Data type: boolean
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Access type: Read-only
If True, the fan supports variable speeds.
This property is inherited from CIM_Fan.
Remarks
The Win32_Fan class is derived from CIM_Fan.
Examples
The following sample retrieves information about the cooling fans installed on a computer.
On Error Resume Next
strComputer = "."
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * from Win32_Fan")
For Each objItem in colItems
Wscript.Echo "Active Cooling: " & objItem.ActiveCooling
Wscript.Echo "Availability: " & objItem.Availability
Wscript.Echo "Device ID: " & objItem.DeviceID
Wscript.Echo "Name: " & objItem.Name
Wscript.Echo "Status Information: " & objItem.StatusInfo
Wscript.Echo
Next
$colItems = Get-WmiObject Win32_Fan -Namespace "root\cimv2"
foreach ($objItem in $colItems)
{
"Active Cooling: " + $objItem.ActiveCooling
"Availability: " + $objItem.Availability
"Device ID: " + $objItem.DeviceID
"Name: " + $objItem.Name
"Status Information: " + $objItem.StatusInfo
}
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista |
| Minimum supported server |
Windows Server 2008 |
| Namespace |
Root\CIMV2 |
| MOF |
|
| DLL |
|