diff --git a/board/nm/nbhw18_v2/board.c b/board/nm/nbhw18_v2/board.c
index 34637d9db4..ff8d680cb4 100755
--- a/board/nm/nbhw18_v2/board.c
+++ b/board/nm/nbhw18_v2/board.c
@@ -151,8 +151,10 @@ int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
 			else if ((type >= USB3_HOST0) && (type <= USB3_HOST1)) {
 				board_serdes_map[i].serdes_speed = SERDES_SPEED_5_GBPS;
 				board_serdes_map[i].serdes_mode = PEX_ROOT_COMPLEX_X1;
-			}
-			else {
+			} else if ((type == DEFAULT_SERDES)) {
+				board_serdes_map[i].serdes_speed = SERDES_SPEED_1_25_GBPS;
+				board_serdes_map[i].serdes_mode = SERDES_DEFAULT_MODE;
+			} else {
 				printf("SERDES Type %d not supported\n", type);
 				/* Keep default serdes configuration */
 				type = board_serdes_map[i].serdes_type;