diff --git a/src/soc/intel/xeon_sp/skx/cpu.c b/src/soc/intel/xeon_sp/skx/cpu.c
index d36f11be66..f9cd356efc 100644
--- a/src/soc/intel/xeon_sp/skx/cpu.c
+++ b/src/soc/intel/xeon_sp/skx/cpu.c
@@ -193,7 +193,8 @@ static void pre_mp_init(void)
 {
 	printk(BIOS_DEBUG, "%s: entry\n", __func__);
 
-	x86_setup_fixed_mtrrs();
+	x86_setup_mtrrs_with_detect();
+	x86_mtrr_check();
 }
 
 static void post_mp_init(void)