diff --git a/main/Kconfig.projbuild b/main/Kconfig.projbuild
index fbcfcc0f..e0c99881 100755
--- a/main/Kconfig.projbuild
+++ b/main/Kconfig.projbuild
@@ -12,6 +12,12 @@ menu "Bitaxe Configuration"
         default 250
         help
             The BM1397 hash frequency
+
+    config ASIC_MODEL
+        string "ASIC Model"
+        default "BM1366"
+        help
+            Model of the ASIC chip
 endmenu
 
 menu "Stratum Configuration"
diff --git a/main/main.c b/main/main.c
index a63d4d9e..eb6c198c 100644
--- a/main/main.c
+++ b/main/main.c
@@ -160,7 +160,7 @@ void app_main(void)
 
     xTaskCreate(USER_INPUT_task, "user input", 8192, (void *) &GLOBAL_STATE, 5, NULL);
 
-    if (GLOBAL_STATE.board_version == 302) {
+    if (GLOBAL_STATE.board_version >= 300 && GLOBAL_STATE.board_version < 400) {
         // this is a HEX board
         ESP_LOGI(TAG, "Starting HEX power management");
         vTaskDelay(2000 / portTICK_PERIOD_MS);