diff --git a/kernel/busses/i2c-nforce2.c b/kernel/busses/i2c-nforce2.c
index 40b12a10..adc916c9 100644
--- a/kernel/busses/i2c-nforce2.c
+++ b/kernel/busses/i2c-nforce2.c
@@ -22,9 +22,10 @@
 */
 
 /*
-    SUPPORTED DEVICES	PCI ID
-    nForce2 MCP		0064       
-    nForce3 Pro150 MCP	00D4
+    SUPPORTED DEVICES		PCI ID
+    nForce2 MCP			0064
+    nForce2 Ultra 400 MCP	0084
+    nForce3 Pro150 MCP		00D4
 
     This driver supports the 2 SMBuses that are included in the MCP2 of the
     nForce2 chipset.
@@ -55,11 +56,15 @@ MODULE_AUTHOR ("Hans-Frieder Vogt <hfvogt@arcor.de>");
 MODULE_DESCRIPTION("nForce2 SMBus driver");
 
 #ifndef PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS
-#define PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS   0x0064
+#define PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS	0x0064
+#endif
+
+#ifndef PCI_DEVICE_ID_NVIDIA_NFORCE2S_SMBUS
+#define PCI_DEVICE_ID_NVIDIA_NFORCE2S_SMBUS	0x0084
 #endif
 
 #ifndef PCI_DEVICE_ID_NVIDIA_NFORCE3_SMBUS
-#define PCI_DEVICE_ID_NVIDIA_NFORCE3_SMBUS   0x00D4
+#define PCI_DEVICE_ID_NVIDIA_NFORCE3_SMBUS	0x00D4
 #endif
 
 
@@ -311,6 +316,8 @@ static void nforce2_dec(struct i2c_adapter *adapter)
 static struct pci_device_id nforce2_ids[] = {
 	{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS,
 	       	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+	{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SMBUS,
+	       	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_SMBUS,
 	       	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ 0 }