diff --git a/config/boards/tritium-h5.conf b/config/boards/tritium-h5.conf
index 3327328e58..f6537dc754 100644
--- a/config/boards/tritium-h5.conf
+++ b/config/boards/tritium-h5.conf
@@ -9,3 +9,9 @@ SERIALCON="ttyS0,ttyGS0"
 KERNEL_TARGET="legacy,current,edge"
 FULL_DESKTOP="yes"
 CRUSTCONFIG="h5_defconfig"
+
+function post_config_uboot_target__lower_DRAM_freq_for_Tritium_H5() {
+	display_alert "$BOARD" "The defconfig file of Tritium H5 explicitly defines DRAM_CLK as 672." "info"
+	display_alert "$BOARD" "Change to match default value used for H5 SoC in Armbian" "info"
+	run_host_command_logged scripts/config --set-val CONFIG_DRAM_CLK "648"
+}