diff --git a/src/model.c b/src/model.c
index 2f62d6374..7408a0670 100644
--- a/src/model.c
+++ b/src/model.c
@@ -430,7 +430,10 @@ void ps1_common_init()
         keyboard_at_init();
         nvr_init();
         pic2_init();
-        fdc_set_dskchg_activelow();
+		if (romset != ROM_IBMPS1_2133)
+		{			
+			fdc_set_dskchg_activelow();
+		}
         device_add(&ps1_audio_device);
         /*PS/1 audio uses ports 200h and 202-207h, so only initialise gameport on 201h*/
         if (joystick_type != 7)  device_add(&gameport_201_device);
@@ -453,7 +456,6 @@ void ps1_m2133_init()
 {
         ps1_common_init();
         ps1mb_m2133_init();
-        fdc_set_ps1();
 }
 
 void ps2_m30_286_init()