diff --git a/src/mainboard/google/rex/variants/baseboard/ovis/devicetree.cb b/src/mainboard/google/rex/variants/baseboard/ovis/devicetree.cb
index 3f75b709da..aace5adcf4 100644
--- a/src/mainboard/google/rex/variants/baseboard/ovis/devicetree.cb
+++ b/src/mainboard/google/rex/variants/baseboard/ovis/devicetree.cb
@@ -65,6 +65,10 @@ chip soc/intel/meteorlake
 	register "sagv_freq_mhz[3]" = "6400"
 	register "sagv_gear[3]" = "4"
 
+	# set EPP to 45%: 45 * 256/100 = 115 = 0x73
+	register "enable_energy_perf_pref" = "true"
+	register "energy_perf_pref_value" = "0x73"
+
 	# Set on-board graphics as primary display
 	register "skip_ext_gfx_scan" = "1"
 
diff --git a/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb b/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
index 162bb64a47..9f868406a1 100644
--- a/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
+++ b/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
@@ -62,6 +62,10 @@ chip soc/intel/meteorlake
 	register "sagv_freq_mhz[3]" = "6400"
 	register "sagv_gear[3]" = "4"
 
+	# set EPP to 45%: 45 * 256/100 = 115 = 0x73
+	register "enable_energy_perf_pref" = "true"
+	register "energy_perf_pref_value" = "0x73"
+
 	# Set on-board graphics as primary display
 	register "skip_ext_gfx_scan" = "1"