diff --git a/src/mainboard/google/dedede/variants/magolor/overridetree.cb b/src/mainboard/google/dedede/variants/magolor/overridetree.cb
index 66fc4ea02f..e0af22dd49 100644
--- a/src/mainboard/google/dedede/variants/magolor/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/magolor/overridetree.cb
@@ -108,6 +108,9 @@ chip soc/intel/jasperlake
 	register "SlowSlewRate" = "SlewRateFastBy8"
 	register "FastPkgCRampDisable" = "1"
 
+	# Core Display Clock Frequency selection
+	register "cd_clock" = "CD_CLOCK_172_8_MHZ"
+
 	device domain 0 on
 		device pci 04.0 on
 			chip drivers/intel/dptf