diff --git a/src/mainboard/starlabs/byte_adl/variants/mk_ii/romstage.c b/src/mainboard/starlabs/byte_adl/variants/mk_ii/romstage.c
index 530246aeea..5f8ebd602f 100644
--- a/src/mainboard/starlabs/byte_adl/variants/mk_ii/romstage.c
+++ b/src/mainboard/starlabs/byte_adl/variants/mk_ii/romstage.c
@@ -9,6 +9,7 @@ void mainboard_memory_init_params(FSPM_UPD *mupd)
 {
 	const struct mb_cfg mem_config = {
 		.type = MEM_TYPE_DDR4,
+		.ect = false,
 		.UserBd = BOARD_TYPE_ULT_ULX,
 	};
 
diff --git a/src/mainboard/starlabs/starbook/variants/adl/romstage.c b/src/mainboard/starlabs/starbook/variants/adl/romstage.c
index d31c63e9d0..98683da2df 100644
--- a/src/mainboard/starlabs/starbook/variants/adl/romstage.c
+++ b/src/mainboard/starlabs/starbook/variants/adl/romstage.c
@@ -9,6 +9,7 @@ void mainboard_memory_init_params(FSPM_UPD *mupd)
 {
 	const struct mb_cfg mem_config = {
 		.type = MEM_TYPE_DDR4,
+		.ect = false,
 		.UserBd = BOARD_TYPE_MOBILE,
 	};
 
diff --git a/src/mainboard/starlabs/starbook/variants/adl_n/romstage.c b/src/mainboard/starlabs/starbook/variants/adl_n/romstage.c
index 2f1d1a2b87..21000d1d33 100644
--- a/src/mainboard/starlabs/starbook/variants/adl_n/romstage.c
+++ b/src/mainboard/starlabs/starbook/variants/adl_n/romstage.c
@@ -9,6 +9,7 @@ void mainboard_memory_init_params(FSPM_UPD *mupd)
 {
 	const struct mb_cfg mem_config = {
 		.type = MEM_TYPE_DDR4,
+		.ect = false,
 		.UserBd = BOARD_TYPE_ULT_ULX,
 	};
 
diff --git a/src/mainboard/starlabs/starbook/variants/cml/romstage.c b/src/mainboard/starlabs/starbook/variants/cml/romstage.c
index 372f8b0620..648943ba46 100644
--- a/src/mainboard/starlabs/starbook/variants/cml/romstage.c
+++ b/src/mainboard/starlabs/starbook/variants/cml/romstage.c
@@ -66,7 +66,7 @@ void mainboard_memory_init_params(FSPM_UPD *memupd)
 		.rcomp_targets = {100, 40, 20, 20, 26},
 		.dq_pins_interleaved = 0,
 		.vref_ca_config = 2,
-		.ect = 0,
+		.ect = true,
 	};
 
 	const uint8_t vtd = get_uint_option("vtd", 1);
diff --git a/src/mainboard/starlabs/starbook/variants/mtl/romstage.c b/src/mainboard/starlabs/starbook/variants/mtl/romstage.c
index 64b78846d0..318186539d 100644
--- a/src/mainboard/starlabs/starbook/variants/mtl/romstage.c
+++ b/src/mainboard/starlabs/starbook/variants/mtl/romstage.c
@@ -9,6 +9,7 @@ void mainboard_memory_init_params(FSPM_UPD *mupd)
 {
 	const struct mb_cfg mem_config = {
 		.type = MEM_TYPE_DDR5,
+		.ect = false,
 		.UserBd = BOARD_TYPE_MOBILE,
 	};
 
diff --git a/src/mainboard/starlabs/starbook/variants/rpl/romstage.c b/src/mainboard/starlabs/starbook/variants/rpl/romstage.c
index a4261e7799..20d518c5c3 100644
--- a/src/mainboard/starlabs/starbook/variants/rpl/romstage.c
+++ b/src/mainboard/starlabs/starbook/variants/rpl/romstage.c
@@ -9,6 +9,7 @@ void mainboard_memory_init_params(FSPM_UPD *mupd)
 {
 	const struct mb_cfg mem_config = {
 		.type = MEM_TYPE_DDR4,
+		.ect = false,
 		.UserBd = BOARD_TYPE_MOBILE,
 	};
 
diff --git a/src/mainboard/starlabs/starbook/variants/tgl/romstage.c b/src/mainboard/starlabs/starbook/variants/tgl/romstage.c
index ceeb754813..8eb82a5a14 100644
--- a/src/mainboard/starlabs/starbook/variants/tgl/romstage.c
+++ b/src/mainboard/starlabs/starbook/variants/tgl/romstage.c
@@ -9,6 +9,7 @@ void mainboard_memory_init_params(FSPM_UPD *mupd)
 {
 	const struct mb_cfg mem_config = {
 		.type = MEM_TYPE_DDR4,
+		.ect = false,
 	};
 
 	const bool half_populated = false;