diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index d11de8e41..d4292ece0 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -410,7 +410,7 @@ const machine_t machines[] = {
     /* Slot 2 machines */
     /* 440GX */
     { "[i440GX] Gigabyte GA-6GXU",		"6gxu",			MACHINE_TYPE_SLOT2,		CPU_PKG_SLOT2, 0, 100000000, 133333333, 1800, 3500, 4.0, 6.5,							MACHINE_AGP | MACHINE_BUS_PS2 | MACHINE_IDE_DUAL,		 		16384,2097152,16384, 511,		 machine_at_6gxu_init, NULL			},
-    { "[i440GX] Freeway FW-6400GX",		"fw6400gx",		MACHINE_TYPE_SLOT2,		CPU_PKG_SLOT2, 0, 100000000, 150000000, 1800, 3500, 3.0, 8.0,							MACHINE_AGP | MACHINE_BUS_PS2 | MACHINE_IDE_DUAL,				16384,2080768,16384, 511,	     machine_at_fw6400gx_init, NULL			},
+    { "[i440GX] Freeway FW-6400GX",		"fw6400gx",		MACHINE_TYPE_SLOT2,		CPU_PKG_SLOT2, 0, 100000000, 150000000, 1800, 3500, 3.0, 8.0,							(MACHINE_AGP & ~MACHINE_AT) | MACHINE_BUS_PS2 | MACHINE_IDE_DUAL,		16384,2080768,16384, 511,	     machine_at_fw6400gx_init, NULL			},
     { "[i440GX] SuperMicro Super S2DGE",	"s2dge",		MACHINE_TYPE_SLOT2,		CPU_PKG_SLOT2, 0, 66666667, 100000000, 1800, 3500, 3.0, 7.5,							MACHINE_AGP | MACHINE_BUS_PS2 | MACHINE_IDE_DUAL,		 		16384,2097152,16384, 511,		machine_at_s2dge_init, NULL			},
 
     /* PGA370 machines */