diff --git a/src/mainboard/amd/serengeti_cheetah/dx/amd8131_2.asl b/src/mainboard/amd/serengeti_cheetah/dx/amd8131_2.asl
new file mode 100644
index 0000000000..163c0f6061
--- /dev/null
+++ b/src/mainboard/amd/serengeti_cheetah/dx/amd8131_2.asl
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2005 AMD
+ */
+		
+            Device (PG0A)
+            {
+                /*  8132 pcix bridge*/
+                Method (_ADR, 0, NotSerialized)
+                {
+                        Return (DADD(GHCD(HCIN, 0), 0x00000000))
+                }
+
+                Method (_PRW, 0, NotSerialized)
+                {
+                    If (CondRefOf (\_S3, Local0)) { Return (Package (0x02) { 0x29, 0x03 }) }
+                    Else { Return (Package (0x02) { 0x29, 0x01 }) }
+                }
+
+                Name (APIC, Package (0x04)
+                {
+		    // Slot A - PIRQ BCDA
+                    Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x0018 }, //Slot 2 
+                    Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x0019 }, 
+                    Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x001A }, 
+                    Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x001B },
+ 
+                })
+                Name (PICM, Package (0x04)
+                {
+                    Package (0x04) { 0x0000FFFF, 0x00, \_SB.PCI0.LNKA, 0x00 },//Slot 2 
+                    Package (0x04) { 0x0000FFFF, 0x01, \_SB.PCI0.LNKB, 0x00 }, 
+                    Package (0x04) { 0x0000FFFF, 0x02, \_SB.PCI0.LNKC, 0x00 }, 
+                    Package (0x04) { 0x0000FFFF, 0x03, \_SB.PCI0.LNKD, 0x00 }, 
+                })
+
+		Name (DNCG, Ones)
+
+                Method (_PRT, 0, NotSerialized)
+                {
+                    If (LEqual (^DNCG, Ones)) {
+			    Multiply (HCIN, 0x0008, Local2) // GSI for 8132 is 4 so we get 8
+		            Store (0x00, Local1)
+            		    While (LLess (Local1, 0x04)) 
+            		    {
+                        	// Update the GSI according to HCIN
+	                        Store(DeRefOf(Index (DeRefOf (Index (APIC, Local1)), 3)), Local0)
+				Add(Local2, Local0, Local0)
+                	        Store(Local0, Index (DeRefOf (Index (APIC, Local1)), 3))
+		                Increment (Local1)
+            		    }
+
+                        Store (0x00, ^DNCG)
+
+                    }
+
+                    If (LNot (PICF)) { Return (PICM) }
+                    Else { Return (APIC) }
+                }
+            }
+
+            Device (PG0B)
+            {
+                /* 8132 pcix bridge 2 */
+                Method (_ADR, 0, NotSerialized)
+                {
+                        Return (DADD(GHCD(HCIN, 0), 0x00010000))
+                }
+
+                Method (_PRW, 0, NotSerialized)
+                {
+                    If (CondRefOf (\_S3, Local0)) { Return (Package (0x02) { 0x22, 0x03 }) }
+                    Else { Return (Package (0x02) { 0x22, 0x01 }) }
+                }
+
+                Name (APIC, Package (0x04)
+                {
+		    // Slot A - PIRQ ABCD
+                    Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x001F },// Slot 1
+                    Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x0020 }, 
+                    Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x0021 }, 
+                    Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x0022 }
+                })
+                Name (PICM, Package (0x04)
+                {
+                    Package (0x04) { 0x0000FFFF, 0x00, \_SB.PCI0.LNKA, 0x00 },//Slot 1 
+                    Package (0x04) { 0x0000FFFF, 0x01, \_SB.PCI0.LNKB, 0x00 }, 
+                    Package (0x04) { 0x0000FFFF, 0x02, \_SB.PCI0.LNKC, 0x00 }, 
+                    Package (0x04) { 0x0000FFFF, 0x03, \_SB.PCI0.LNKD, 0x00 }
+                })
+
+                Name (DNCG, Ones)
+
+                Method (_PRT, 0, NotSerialized)
+                {
+                    If (LEqual (^DNCG, Ones)) {
+                            Multiply (HCIN, 0x0008, Local2) // GSI for 8132 is 4 so we get 8
+                            Store (0x00, Local1)
+                            While (LLess (Local1, 0x04))
+                            {
+                                // Update the GSI according to HCIN
+                                Store(DeRefOf(Index (DeRefOf (Index (APIC, Local1)), 3)), Local0)
+                                Add(Local2, Local0, Local0)
+                                Store(Local0, Index (DeRefOf (Index (APIC, Local1)), 3))
+                                Increment (Local1)
+                            }
+
+                        Store (0x00, ^DNCG)
+
+                    }
+
+                    If (LNot (PICF)) { Return (PICM) }
+                    Else { Return (APIC) }
+                }
+            }
diff --git a/src/mainboard/amd/serengeti_cheetah/dx/amd8132_2.asl b/src/mainboard/amd/serengeti_cheetah/dx/amd8132_2.asl
new file mode 100644
index 0000000000..75ef72343a
--- /dev/null
+++ b/src/mainboard/amd/serengeti_cheetah/dx/amd8132_2.asl
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2005 AMD
+ */
+		
+            Device (PG0A)
+            {
+                /*  8132 pcix bridge*/
+                Method (_ADR, 0, NotSerialized)
+                {
+                        Return (DADD(GHCD(HCIN, 0), 0x00000000))
+                }
+
+                Method (_PRW, 0, NotSerialized)
+                {
+                    If (CondRefOf (\_S3, Local0)) { Return (Package (0x02) { 0x29, 0x03 }) }
+                    Else { Return (Package (0x02) { 0x29, 0x01 }) }
+                }
+
+                Name (APIC, Package (0x04)
+                {
+		    // Slot A - PIRQ BCDA
+                    Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x0018 }, //Slot 2 
+                    Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x0019 }, 
+                    Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x001A }, 
+                    Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x001B },
+ 
+                })
+                Name (PICM, Package (0x04)
+                {
+                    Package (0x04) { 0x0000FFFF, 0x00, \_SB.PCI0.LNKA, 0x00 },//Slot 2 
+                    Package (0x04) { 0x0000FFFF, 0x01, \_SB.PCI0.LNKB, 0x00 }, 
+                    Package (0x04) { 0x0000FFFF, 0x02, \_SB.PCI0.LNKC, 0x00 }, 
+                    Package (0x04) { 0x0000FFFF, 0x03, \_SB.PCI0.LNKD, 0x00 }, 
+                })
+
+		Name (DNCG, Ones)
+
+                Method (_PRT, 0, NotSerialized)
+                {
+                    If (LEqual (^DNCG, Ones)) {
+			    Multiply (HCIN, 0x000e, Local2) // GSI for 8132 is 7 so we get 14
+		            Store (0x00, Local1)
+            		    While (LLess (Local1, 0x04)) 
+            		    {
+                        	// Update the GSI according to HCIN
+	                        Store(DeRefOf(Index (DeRefOf (Index (APIC, Local1)), 3)), Local0)
+				Add(Local2, Local0, Local0)
+                	        Store(Local0, Index (DeRefOf (Index (APIC, Local1)), 3))
+		                Increment (Local1)
+            		    }
+
+                        Store (0x00, ^DNCG)
+
+                    }
+
+                    If (LNot (PICF)) { Return (PICM) }
+                    Else { Return (APIC) }
+                }
+            }
+
+            Device (PG0B)
+            {
+                /* 8132 pcix bridge 2 */
+                Method (_ADR, 0, NotSerialized)
+                {
+                        Return (DADD(GHCD(HCIN, 0), 0x00010000))
+                }
+
+                Method (_PRW, 0, NotSerialized)
+                {
+                    If (CondRefOf (\_S3, Local0)) { Return (Package (0x02) { 0x22, 0x03 }) }
+                    Else { Return (Package (0x02) { 0x22, 0x01 }) }
+                }
+
+                Name (APIC, Package (0x04)
+                {
+		    // Slot A - PIRQ ABCD
+                    Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x001F },// Slot 1
+                    Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x0020 }, 
+                    Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x0021 }, 
+                    Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x0022 }
+                })
+                Name (PICM, Package (0x04)
+                {
+                    Package (0x04) { 0x0000FFFF, 0x00, \_SB.PCI0.LNKA, 0x00 },//Slot 1 
+                    Package (0x04) { 0x0000FFFF, 0x01, \_SB.PCI0.LNKB, 0x00 }, 
+                    Package (0x04) { 0x0000FFFF, 0x02, \_SB.PCI0.LNKC, 0x00 }, 
+                    Package (0x04) { 0x0000FFFF, 0x03, \_SB.PCI0.LNKD, 0x00 }
+                })
+
+                Name (DNCG, Ones)
+
+                Method (_PRT, 0, NotSerialized)
+                {
+                    If (LEqual (^DNCG, Ones)) {
+                            Multiply (HCIN, 0x000e, Local2) // GSI for 8132 is 7 so we get 14
+                            Store (0x00, Local1)
+                            While (LLess (Local1, 0x04))
+                            {
+                                // Update the GSI according to HCIN
+                                Store(DeRefOf(Index (DeRefOf (Index (APIC, Local1)), 3)), Local0)
+                                Add(Local2, Local0, Local0)
+                                Store(Local0, Index (DeRefOf (Index (APIC, Local1)), 3))
+                                Increment (Local1)
+                            }
+
+                        Store (0x00, ^DNCG)
+
+                    }
+
+                    If (LNot (PICF)) { Return (PICM) }
+                    Else { Return (APIC) }
+                }
+            }
diff --git a/src/mainboard/amd/serengeti_cheetah/dx/pci3.asl b/src/mainboard/amd/serengeti_cheetah/dx/pci3.asl
new file mode 100644
index 0000000000..1507cfc0f9
--- /dev/null
+++ b/src/mainboard/amd/serengeti_cheetah/dx/pci3.asl
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2005 AMD
+ */
+DefinitionBlock ("SSDT3.aml", "SSDT", 1, "AMD-K8", "AMDACPI", 100925440)
+{
+    Scope (_SB)
+    {
+	External (DADD, MethodObj)
+	External (GHCE, MethodObj)
+	External (GHCN, MethodObj)
+	External (GHCL, MethodObj)
+	External (GHCD, MethodObj)
+	External (GNUS, MethodObj)
+	External (GIOR, MethodObj)
+	External (GMEM, MethodObj)
+	External (GWBN, MethodObj)
+	External (GBUS, MethodObj)
+
+	External (PICF)
+
+	External (\_SB.PCI0.LNKA, DeviceObj)
+	External (\_SB.PCI0.LNKB, DeviceObj)
+	External (\_SB.PCI0.LNKC, DeviceObj)
+	External (\_SB.PCI0.LNKD, DeviceObj)
+
+        Device (PCIX)
+        {
+
+	    // BUS ? Second HT Chain
+	    Name (HCIN, 0xcc)  // HC2 0x01
+            
+	    Name (_UID,  0xdd)  // HC 0x03
+
+	    Name (_HID, "PNP0A03") 
+
+            Method (_ADR, 0, NotSerialized) //Fake bus should be 0
+	    {
+		Return (DADD(GHCN(HCIN), 0x00000000))
+	    }
+	
+            Method (_BBN, 0, NotSerialized)
+            {
+                Return (GBUS (GHCN(HCIN), GHCL(HCIN)))
+            }
+
+            Method (_STA, 0, NotSerialized)
+            {
+                Return (\_SB.GHCE(HCIN)) 
+            }
+
+            Method (_CRS, 0, NotSerialized)
+            {
+                Name (BUF0, ResourceTemplate () { })
+		Store( GHCN(HCIN), Local4)
+		Store( GHCL(HCIN), Local5)
+
+                Concatenate (\_SB.GIOR (Local4, Local5), BUF0, Local1)
+                Concatenate (\_SB.GMEM (Local4, Local5), Local1, Local2)
+                Concatenate (\_SB.GWBN (Local4, Local5), Local2, Local3)
+                Return (Local3)
+            }
+
+	    Include ("pci3_hc.asl")
+        }
+    }
+
+}
+
diff --git a/src/mainboard/amd/serengeti_cheetah/dx/pci3_hc.asl b/src/mainboard/amd/serengeti_cheetah/dx/pci3_hc.asl
new file mode 100644
index 0000000000..045d090392
--- /dev/null
+++ b/src/mainboard/amd/serengeti_cheetah/dx/pci3_hc.asl
@@ -0,0 +1 @@
+	Include ("amd8151.asl")
diff --git a/src/mainboard/amd/serengeti_cheetah/dx/pci4.asl b/src/mainboard/amd/serengeti_cheetah/dx/pci4.asl
new file mode 100644
index 0000000000..3ced9be7f7
--- /dev/null
+++ b/src/mainboard/amd/serengeti_cheetah/dx/pci4.asl
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2005 AMD
+ */
+DefinitionBlock ("SSDT4.aml", "SSDT", 1, "AMD-K8", "AMDACPI", 100925440)
+{
+    Scope (_SB)
+    {
+	External (DADD, MethodObj)
+	External (GHCE, MethodObj)
+	External (GHCN, MethodObj)
+	External (GHCL, MethodObj)
+	External (GHCD, MethodObj)
+	External (GNUS, MethodObj)
+	External (GIOR, MethodObj)
+	External (GMEM, MethodObj)
+	External (GWBN, MethodObj)
+	External (GBUS, MethodObj)
+
+	External (PICF)
+
+	External (\_SB.PCI0.LNKA, DeviceObj)
+	External (\_SB.PCI0.LNKB, DeviceObj)
+	External (\_SB.PCI0.LNKC, DeviceObj)
+	External (\_SB.PCI0.LNKD, DeviceObj)
+
+        Device (PCIX)
+        {
+
+	    // BUS ? Second HT Chain
+	    Name (HCIN, 0xcc)  // HC2 0x01
+            
+	    Name (_UID,  0xdd)  // HC 0x03
+
+	    Name (_HID, "PNP0A03") 
+
+            Method (_ADR, 0, NotSerialized) //Fake bus should be 0
+	    {
+		Return (DADD(GHCN(HCIN), 0x00000000))
+	    }
+	
+            Method (_BBN, 0, NotSerialized)
+            {
+                Return (GBUS (GHCN(HCIN), GHCL(HCIN)))
+            }
+
+            Method (_STA, 0, NotSerialized)
+            {
+                Return (\_SB.GHCE(HCIN)) 
+            }
+
+            Method (_CRS, 0, NotSerialized)
+            {
+                Name (BUF0, ResourceTemplate () { })
+		Store( GHCN(HCIN), Local4)
+		Store( GHCL(HCIN), Local5)
+
+                Concatenate (\_SB.GIOR (Local4, Local5), BUF0, Local1)
+                Concatenate (\_SB.GMEM (Local4, Local5), Local1, Local2)
+                Concatenate (\_SB.GWBN (Local4, Local5), Local2, Local3)
+                Return (Local3)
+            }
+
+	    Include ("pci4_hc.asl")
+        }
+    }
+
+}
+
diff --git a/src/mainboard/amd/serengeti_cheetah/dx/pci4_hc.asl b/src/mainboard/amd/serengeti_cheetah/dx/pci4_hc.asl
new file mode 100644
index 0000000000..5b9a420681
--- /dev/null
+++ b/src/mainboard/amd/serengeti_cheetah/dx/pci4_hc.asl
@@ -0,0 +1 @@
+	Include ("amd8131_2.asl")
diff --git a/src/mainboard/amd/serengeti_leopard/dx/pci0_hc.asl b/src/mainboard/amd/serengeti_leopard/dx/pci0_hc.asl
new file mode 100644
index 0000000000..b1e9562f6b
--- /dev/null
+++ b/src/mainboard/amd/serengeti_leopard/dx/pci0_hc.asl
@@ -0,0 +1,2 @@
+	Include ("amd8111.asl") //real SB at first
+	Include ("amd8131.asl")