diff --git a/LibreHardwareMonitorLib/Hardware/Motherboard/Identification.cs b/LibreHardwareMonitorLib/Hardware/Motherboard/Identification.cs
index a82576b..8647657 100644
--- a/LibreHardwareMonitorLib/Hardware/Motherboard/Identification.cs
+++ b/LibreHardwareMonitorLib/Hardware/Motherboard/Identification.cs
@@ -238,6 +238,8 @@ namespace LibreHardwareMonitor.Hardware.Motherboard
                     return Model.Z170_A;
                 case var _ when name.Equals("Z77 Pro4-M", StringComparison.OrdinalIgnoreCase):
                     return Model.Z77Pro4M;
+                case var _ when name.Equals("X570 Pro4", StringComparison.OrdinalIgnoreCase):
+                    return Model.X570_Pro4;
                 case var _ when name.Equals("AX370-Gaming 5", StringComparison.OrdinalIgnoreCase):
                     return Model.AX370_Gaming_5;
                 case var _ when name.Equals("TUF X470-PLUS GAMING", StringComparison.OrdinalIgnoreCase):
diff --git a/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/Chip.cs b/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/Chip.cs
index 57ac63d..1d0d096 100644
--- a/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/Chip.cs
+++ b/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/Chip.cs
@@ -51,6 +51,7 @@ namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc
         NCT6793D = 0xD121,
         NCT6795D = 0xD352,
         NCT6796D = 0xD423,
+        NCT6796DR = 0xD42A,
         NCT6797D = 0xD451,
         NCT6798D = 0xD42B,
 
@@ -110,6 +111,7 @@ namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc
                 case Chip.NCT6793D: return "Nuvoton NCT6793D";
                 case Chip.NCT6795D: return "Nuvoton NCT6795D";
                 case Chip.NCT6796D: return "Nuvoton NCT6796D";
+                case Chip.NCT6796DR: return "Nuvoton NCT6796D-R";
                 case Chip.NCT6797D: return "Nuvoton NCT6797D";
                 case Chip.NCT6798D: return "Nuvoton NCT6798D";
 
diff --git a/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/LpcIO.cs b/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/LpcIO.cs
index bc4a947..15089a0 100644
--- a/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/LpcIO.cs
+++ b/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/LpcIO.cs
@@ -364,6 +364,10 @@ namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc
                             chip = Chip.NCT6796D;
                             logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;
                             break;
+                        case 0x2A:
+                            chip = Chip.NCT6796DR;
+                            logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;
+                            break;
                         case 0x51:
                             chip = Chip.NCT6797D;
                             logicalDeviceNumber = WINBOND_NUVOTON_HARDWARE_MONITOR_LDN;
@@ -395,7 +399,7 @@ namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc
                 ushort vendorId = port.ReadWord(FINTEK_VENDOR_ID_REGISTER);
 
                 // disable the hardware monitor i/o space lock on NCT679*D chips
-                if (address == verify && (chip == Chip.NCT6791D || chip == Chip.NCT6796D || chip == Chip.NCT6793D || chip == Chip.NCT6795D || chip == Chip.NCT6798D || chip == Chip.NCT6797D))
+                if (address == verify && (chip == Chip.NCT6791D || chip == Chip.NCT6796D || chip == Chip.NCT6796DR || chip == Chip.NCT6793D || chip == Chip.NCT6795D || chip == Chip.NCT6798D || chip == Chip.NCT6797D))
                 {
                     port.NuvotonDisableIOSpaceLock();
                 }
@@ -452,6 +456,7 @@ namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc
                     case Chip.NCT6793D:
                     case Chip.NCT6795D:
                     case Chip.NCT6796D:
+                    case Chip.NCT6796DR:
                     case Chip.NCT6797D:
                     case Chip.NCT6798D:
                     {
diff --git a/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/Nct677X.cs b/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/Nct677X.cs
index 8b9c534..a80eb14 100644
--- a/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/Nct677X.cs
+++ b/LibreHardwareMonitorLib/Hardware/Motherboard/Lpc/Nct677X.cs
@@ -128,23 +128,31 @@ namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc
                 case Chip.NCT6793D:
                 case Chip.NCT6795D:
                 case Chip.NCT6796D:
+                case Chip.NCT6796DR:
                 case Chip.NCT6797D:
                 case Chip.NCT6798D:
                 {
-                    if (chip == Chip.NCT6779D)
+                    switch (chip)
                     {
-                        Fans = new float?[5];
-                        Controls = new float?[5];
-                    }
-                    else if (chip == Chip.NCT6797D || chip == Chip.NCT6798D)
-                    {
-                        Fans = new float?[7];
-                        Controls = new float?[7];
-                    }
-                    else
-                    {
-                        Fans = new float?[6];
-                        Controls = new float?[6];
+                        case Chip.NCT6779D:
+                        {
+                            Fans = new float?[5];
+                            Controls = new float?[5];
+                            break;
+                        }
+                        case Chip.NCT6797D:
+                        case Chip.NCT6798D:
+                        {
+                            Fans = new float?[7];
+                            Controls = new float?[7];
+                            break;
+                        }
+                        default:
+                        {
+                            Fans = new float?[6];
+                            Controls = new float?[6];
+                            break;
+                        }
                     }
 
                     _fanRpmRegister = new ushort[] { 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8, 0x4ca, 0x4ce };
@@ -527,7 +535,7 @@ namespace LibreHardwareMonitor.Hardware.Motherboard.Lpc
 
         private void DisableIOSpaceLock()
         {
-            if (Chip != Chip.NCT6791D && Chip != Chip.NCT6796D && Chip != Chip.NCT6793D && Chip != Chip.NCT6795D && Chip != Chip.NCT6798D && Chip != Chip.NCT6797D)
+            if (Chip != Chip.NCT6791D && Chip != Chip.NCT6796D && Chip != Chip.NCT6796DR && Chip != Chip.NCT6793D && Chip != Chip.NCT6795D && Chip != Chip.NCT6798D && Chip != Chip.NCT6797D)
                 return;
 
 
diff --git a/LibreHardwareMonitorLib/Hardware/Motherboard/Model.cs b/LibreHardwareMonitorLib/Hardware/Motherboard/Model.cs
index 183da58..f7deb45 100644
--- a/LibreHardwareMonitorLib/Hardware/Motherboard/Model.cs
+++ b/LibreHardwareMonitorLib/Hardware/Motherboard/Model.cs
@@ -30,6 +30,7 @@ namespace LibreHardwareMonitor.Hardware.Motherboard
         P55_Deluxe,
         X399_Phantom_Gaming_6,
         Z77Pro4M,
+        X570_Pro4,
 
         // ASUS
         CROSSHAIR_III_FORMULA,
diff --git a/LibreHardwareMonitorLib/Hardware/Motherboard/Motherboard.cs b/LibreHardwareMonitorLib/Hardware/Motherboard/Motherboard.cs
index 9fd8c6c..f2c948b 100644
--- a/LibreHardwareMonitorLib/Hardware/Motherboard/Motherboard.cs
+++ b/LibreHardwareMonitorLib/Hardware/Motherboard/Motherboard.cs
@@ -37,10 +37,14 @@ namespace LibreHardwareMonitor.Hardware.Motherboard
                         _name = manufacturer + " " + smBios.Board.ProductName;
                 }
                 else
+                {
                     _name = manufacturer.ToString();
+                }
             }
             else
+            {
                 _name = Manufacturer.Unknown.ToString();
+            }
 
             _customName = settings.GetValue(new Identifier(Identifier, "name").ToString(), _name);
 
diff --git a/LibreHardwareMonitorLib/Hardware/Motherboard/SuperIOHardware.cs b/LibreHardwareMonitorLib/Hardware/Motherboard/SuperIOHardware.cs
index 219fb65..e55b85c 100644
--- a/LibreHardwareMonitorLib/Hardware/Motherboard/SuperIOHardware.cs
+++ b/LibreHardwareMonitorLib/Hardware/Motherboard/SuperIOHardware.cs
@@ -303,6 +303,7 @@ namespace LibreHardwareMonitor.Hardware.Motherboard
                 case Chip.NCT6793D:
                 case Chip.NCT6795D:
                 case Chip.NCT6796D:
+                case Chip.NCT6796DR:
                 case Chip.NCT6797D:
                 case Chip.NCT6798D:
                     GetNuvotonConfigurationD(superIO, manufacturer, model, v, t, f, c);