diff --git a/src/mainboard/google/octopus/variants/baseboard/memory.c b/src/mainboard/google/octopus/variants/baseboard/memory.c
index 95a476228f..92a1c8da1d 100644
--- a/src/mainboard/google/octopus/variants/baseboard/memory.c
+++ b/src/mainboard/google/octopus/variants/baseboard/memory.c
@@ -165,6 +165,14 @@ static const struct lpddr4_sku cbi_skus[] = {
 		.ch0_rank_density = LP4_8Gb_DENSITY,
 		.ch0_dual_rank = 1,
 	},
+	/* Dual Channel / Dual Rank Config 4GiB System Capacity */
+	[5] = {
+		.speed = LP4_SPEED_2400,
+		.ch0_rank_density = LP4_4Gb_DENSITY,
+		.ch1_rank_density = LP4_4Gb_DENSITY,
+		.ch0_dual_rank = 1,
+		.ch1_dual_rank = 1,
+	},
 	/* Dual Channel Config 6GiB System Capacity */
 	[7] = {
 		.speed = LP4_SPEED_2400,