diff --git a/src/mainboard/system76/lemp9/devicetree.cb b/src/mainboard/system76/lemp9/devicetree.cb
index 15e4dbee53..12b9c799ed 100644
--- a/src/mainboard/system76/lemp9/devicetree.cb
+++ b/src/mainboard/system76/lemp9/devicetree.cb
@@ -127,7 +127,7 @@ chip soc/intel/cannonlake
 	register "PcieClkSrcClkReq[5]" = "5"
 
 	# Misc
-	register "Device4Enable" = "0"
+	register "Device4Enable" = "1"
 	register "HeciEnabled" = "0"
 	register "Heci3Enabled" = "0"
 	register "AcousticNoiseMitigation" = "1"
@@ -183,7 +183,7 @@ chip soc/intel/cannonlake
 	device domain 0 on
 		device pci 00.0 on  end # Host Bridge
 		device pci 02.0 on  end # Integrated Graphics Device
-		device pci 04.0 off end # SA Thermal device
+		device pci 04.0 on  end # SA Thermal device
 		device pci 12.0 on  end # Thermal Subsystem
 		device pci 12.5 off end # UFS SCS
 		device pci 12.6 off end # GSPI #2