diff --git a/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb b/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
index adde71fe6d..668c10980a 100644
--- a/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
+++ b/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
@@ -216,13 +216,13 @@ chip soc/amd/cezanne
 	register "stt_control" = "1"
 	register "stt_pcb_sensor_count" = "2"
 	register "stt_min_limit" = "12000"
-	register "stt_m1" = "0x466"
-	register "stt_m2" = "0xFF3B"
+	register "stt_m1" = "0x04DE"
+	register "stt_m2" = "0x13"
 	register "stt_m3" = "0"
 	register "stt_m4" = "0"
 	register "stt_m5" = "0"
 	register "stt_m6" = "0"
-	register "stt_c_apu" = "0x14DA"
+	register "stt_c_apu" = "0xDA43"
 	register "stt_c_gpu" = "0"
 	register "stt_c_hs2" = "0"
 	register "stt_alpha_apu" = "0x199A"