diff --git a/src/mainboard/google/poppy/variants/baseboard/devicetree.cb b/src/mainboard/google/poppy/variants/baseboard/devicetree.cb
index 76ec693ebb..1027dda268 100644
--- a/src/mainboard/google/poppy/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/baseboard/devicetree.cb
@@ -264,6 +264,9 @@ chip soc/intel/skylake
 	# Lock Down
 	register "chipset_lockdown" = "CHIPSET_LOCKDOWN_COREBOOT"
 
+	# PCH Trip Temperature in degree C
+	register "pch_trip_temp" = "75"
+
 	device cpu_cluster 0 on
 		device lapic 0 on end
 	end
diff --git a/src/mainboard/google/poppy/variants/nami/devicetree.cb b/src/mainboard/google/poppy/variants/nami/devicetree.cb
index c4aabcf4eb..9d6dcd858b 100644
--- a/src/mainboard/google/poppy/variants/nami/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nami/devicetree.cb
@@ -234,6 +234,9 @@ chip soc/intel/skylake
 	# Lock Down
 	register "chipset_lockdown" = "CHIPSET_LOCKDOWN_COREBOOT"
 
+	# PCH Trip Temperature in degree C
+	register "pch_trip_temp" = "75"
+
 	device cpu_cluster 0 on
 		device lapic 0 on end
 	end
diff --git a/src/mainboard/google/poppy/variants/nautilus/devicetree.cb b/src/mainboard/google/poppy/variants/nautilus/devicetree.cb
index 0f246859b7..fe4e1fa044 100644
--- a/src/mainboard/google/poppy/variants/nautilus/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nautilus/devicetree.cb
@@ -282,6 +282,9 @@ chip soc/intel/skylake
 	# Lock Down
 	register "chipset_lockdown" = "CHIPSET_LOCKDOWN_COREBOOT"
 
+	# PCH Trip Temperature in degree C
+	register "pch_trip_temp" = "75"
+
 	device cpu_cluster 0 on
 		device lapic 0 on end
 	end