iSMBIOS is a lightweight implementation that allows us to obtain the SMBIOS information

This library fully implements DMTF Specification 3.3.0 and olders versions

For more information, please see https://www.dmtf.org/standards/smbios

Call DMI.Instance.Structures for getting all SMBIOS structures availables.

1. Gets and prints all SMBIOS availables structures.

   DmiStructureCollection structures = DMI.Instance.Structures;
   foreach (DmiStructure structure in structures)
   {
       Console.WriteLine($@"{(int) structure.Class:D3}-{structure.Class}");
   }
   

2. Gets a specific SMBIOS structure.

   DmiStructureCollection structures = DMI.Instance.Structures;
   DmiStructure bios = structures[SmbiosStructure.Bios];
   if (bios != null)
   {
       /// structure exist!!!
   }
   

3. Gets a single property directly.

   DmiStructureCollection structures = DMI.Instance.Structures;
   object biosVersion = structures.GetProperty(DmiProperty.Bios.BiosVersion);
   if (biosVersion != null)
   {
       Console.WriteLine($@" BIOS Version > {biosVersion}");
   }
   
   string biosVendor = structures.GetProperty<string>(DmiProperty.Bios.Vendor);
   Console.WriteLine($@" > BIOS Vendor > {biosVendor}");
   
   int currentSpeed = structures.GetProperty<int>(DmiProperty.Processor.CurrentSpeed);
   Console.WriteLine($@" > Current Speed > {currentSpeed:N0} {DmiProperty.Processor.CurrentSpeed.PropertyUnit}");
   
   string processorManufacturer = structures.GetProperty<string>(DmiProperty.Processor.ProcessorManufacturer);
   Console.WriteLine($@" Processor Manufacturer > {processorManufacturer}");
   

4. Gets a property in multiple elements directly.

   // Requires that the Slot Information structure exists in your system
   DmiStructureCollection structures = DMI.Instance.Structures;
   IDictionary<int, object> systemSlots = structures.GetProperties(DmiProperty.SystemSlots.SlotId);
   bool hasSystemSlots = systemSlots.Any();
   if (!hasSystemSlots)
   {
       Console.WriteLine($" > There is no system slots information structure in this computer");
   }
   else
   {
       foreach (KeyValuePair<int, object> systemSlot in systemSlots)
       {
           int element = systemSlot.Key;
           var property = ((IEnumerable<KeyValuePair<IPropertyKey, object>>) systemSlot.Value).FirstOrDefault();
           Console.WriteLine($@" System Slot ({element}) > {property.Value}");
       }
   }
   

5. Prints all SMBIOS structures properties

    DmiStructureCollection structures = DMI.Instance.Structures;      
    foreach (DmiStructure structure in structures)
    {
        Console.WriteLine();
        Console.WriteLine(@" ——————————————————————————————————————————————————————————————");
        Console.WriteLine($@" {(int)structure.Class:D3}-{structure.FriendlyClassName} structure detail");
        Console.WriteLine(@" ——————————————————————————————————————————————————————————————");
        DmiClassCollection elements = structure.Elements;
        foreach (DmiClass element in elements)
        {
            DmiClassPropertiesTable elementProperties = element.Properties;
            foreach (KeyValuePair<IPropertyKey, object> property in elementProperties)
            {
                object value = property.Value;
   
                IPropertyKey key = property.Key;
                string friendlyName = GetFriendlyName(key);
                PropertyUnit valueUnit = key.PropertyUnit;
                string unit =
                    valueUnit == PropertyUnit.None
                        ? string.Empty
                        : valueUnit.ToString();
   
                if (value == null)
                {
                    Console.WriteLine($@" > {friendlyName} > NULL");
                    continue;
                }
   
                if (value is string)
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit}");
                }
                else if (value is byte)
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit} [{value:X2}h]");
                }
                else if (value is short)
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit} [{value:X4}h]");
                }
                else if (value is ushort)
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit} [{value:X4}h]");
                }
                else if (value is int)
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit} [{value:X4}h]");
                }
                else if (value is uint)
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit} [{value:X4}h]");
                }
                else if (value is long)
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit} [{value:X8}h]");
                }
                else if (value is ulong)
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit} [{value:X8}h]");
                }
                else if (value.GetType() == typeof(ReadOnlyCollection<byte>))
                {
                    Console.WriteLine($@" > {friendlyName} > {string.Join(", ", (ReadOnlyCollection<byte>)value)}");
                }
                else if (value.GetType() == typeof(DmiGroupAssociationElementCollection))
                {
                    // prints elements
                }
                else if (value.GetType() == typeof(ReadOnlyCollection<string>))
                {
                    Console.WriteLine($@" > {friendlyName}");
                    var collection = (ReadOnlyCollection<string>)value;
                    foreach (var entry in collection)
                    {
                        Console.WriteLine($@"   > {entry} {unit}");
                    }
                }
                else
                {
                    Console.WriteLine($@" > {friendlyName} > {value} {unit}");
                }
            }
        }
    }
   
    private static string GetFriendlyName(IPropertyKey value)
    {
        string name = value.GetPropertyName();
        return string.IsNullOrEmpty(name)
            ? value.PropertyId.ToString()
            : name;
    }
   

If you have found iSMBIOS useful at work or in a personal project, I would love to hear about it. If you have decided not to use iSMBIOS, please send me and email stating why this is so. I will use this feedback to improve iSMBIOS in future releases.

My email address is fdo.garcia.vega@gmail.com