Added code to read configured memory speed and voltage from the SMBios. (#932)

LibreHardwareMonitorLib/Hardware/SMBios.cs

@@ -1091,6 +1091,8 @@ public class MemoryDevice : InformationBase
         SerialNumber = GetString(0x18).Trim();
         PartNumber = GetString(0x1A).Trim();
         Speed = GetWord(0x15);
+        ConfiguredSpeed = GetWord(0x20);
+        ConfiguredVoltage = GetWord(0x26);
         Size = GetWord(0x0C);
         Type = (MemoryType)GetByte(0x12);
 
@@ -1133,6 +1135,16 @@ public class MemoryDevice : InformationBase
     /// </summary>
     public ushort Speed { get; }
 
+    /// <summary>
+    /// Gets the configured speed of the device, in mega transfers per second (MT/s).
+    /// </summary>
+    public ushort ConfiguredSpeed { get; }
+
+    /// <summary>
+    /// Gets the configured voltage of this memory device, in millivolts (mV).
+    /// </summary>
+    public ushort ConfiguredVoltage { get; }
+
     /// <summary>
     /// Gets the type of this memory device.
     /// </summary>
@@ -1483,6 +1495,10 @@ public class SMBios
             r.AppendLine(MemoryDevices[i].BankLocator);
             r.Append("Memory Device [" + i + "] Speed: ");
             r.AppendLine(MemoryDevices[i].Speed.ToString());
+            r.Append("Memory Device [" + i + "] Configured Speed: ");
+            r.AppendLine(MemoryDevices[i].ConfiguredSpeed.ToString());
+            r.Append("Memory Device [" + i + "] Configured Voltage: ");
+            r.AppendLine(MemoryDevices[i].ConfiguredVoltage.ToString());
             r.Append("Memory Device [" + i + "] Size: ");
             r.Append(MemoryDevices[i].Size.ToString());
             r.AppendLine(" MB");