diff --git a/src/mainboard/asus/p8x7x-series/devicetree.cb b/src/mainboard/asus/p8x7x-series/devicetree.cb
index 75566d1..0dc77f3 100644
--- a/src/mainboard/asus/p8x7x-series/devicetree.cb
+++ b/src/mainboard/asus/p8x7x-series/devicetree.cb
@@ -2,9 +2,9 @@
 
 chip northbridge/intel/sandybridge
 	device domain 0 on
-		device pci 00.0 on  end		# Host bridge
-		device pci 01.0 on  end		# PCIEX16_1
-		device pci 02.0 on  end		# iGPU
+		device ref host_bridge on  end		# Host bridge
+		device ref peg10 on  end		# PCIEX16_1
+		device ref igd on  end		# iGPU
 
 		chip southbridge/intel/bd82x6x
 			register "sata_interface_speed_support" = "0x3"
@@ -15,32 +15,32 @@
 			register "xhci_overcurrent_mapping" = "0x00000c03"
 			register "xhci_switchable_ports"    = "0x0000000f"
 
-			device pci 14.0 on  end		# xHCI
-			device pci 16.0 on  end		# MEI #1
-			device pci 16.1 off end		# MEI #2
-			device pci 16.2 off end		# ME IDE-R
-			device pci 16.3 off end		# ME KT
-			device pci 19.0 off end		# Intel GbE
-			device pci 1a.0 on  end		# EHCI #2
-			device pci 1b.0 on  end		# HD Audio
+			device ref xhci on  end		# xHCI
+			device ref mei1 on  end		# MEI #1
+			device ref mei2 off end		# MEI #2
+			device ref me_ide_r off end		# ME IDE-R
+			device ref me_kt off end		# ME KT
+			device ref gbe off end		# Intel GbE
+			device ref ehci2 on  end		# EHCI #2
+			device ref hda on  end		# HD Audio
 
-			device pci 1c.0 off end		# RP #1
-			device pci 1c.1 off end		# RP #2
-			device pci 1c.2 off end		# RP #3
-			device pci 1c.3 off end		# RP #4
-			device pci 1c.4 off end		# RP #5
-			device pci 1c.5 off end		# RP #6
-			device pci 1c.6 off end		# RP #7
-			device pci 1c.7 off end		# RP #8
+			device ref pcie_rp1 off end		# RP #1
+			device ref pcie_rp2 off end		# RP #2
+			device ref pcie_rp3 off end		# RP #3
+			device ref pcie_rp4 off end		# RP #4
+			device ref pcie_rp5 off end		# RP #5
+			device ref pcie_rp6 off end		# RP #6
+			device ref pcie_rp7 off end		# RP #7
+			device ref pcie_rp8 off end		# RP #8
 
-			device pci 1d.0 on  end		# EHCI #1
-			device pci 1e.0 off end		# PCI bridge
-			device pci 1f.0 on		# LPC bridge
+			device ref ehci1 on  end		# EHCI #1
+			device ref pci_bridge off end		# PCI bridge
+			device ref lpc on		# LPC bridge
 			end
-			device pci 1f.2 on  end		# SATA (AHCI)
-			device pci 1f.3 on  end		# SMBus
-			device pci 1f.5 off end		# SATA (Legacy)
-			device pci 1f.6 off end		# Thermal
+			device ref sata1 on  end		# SATA (AHCI)
+			device ref smbus on  end		# SMBus
+			device ref sata2 off end		# SATA (Legacy)
+			device ref thermal off end		# Thermal
 		end
 	end
 end