Index: ata-chipset.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/ata/ata-chipset.c,v
retrieving revision 1.126.2.26
diff -u -p -r1.126.2.26 ata-chipset.c
--- ata-chipset.c	9 Jan 2008 08:55:51 -0000	1.126.2.26
+++ ata-chipset.c	19 Jan 2008 00:30:00 -0000
@@ -401,7 +401,8 @@ ata_sata_setmode(device_t dev, int mode)
 	    atadev->mode = ATA_SA150;
     }
     else {
-	mode = ata_limit_mode(dev, mode, ATA_UDMA5);
+	device_printf(dev, "[non-AHCI] Setting mode to UDMA2\n");
+	mode = ata_limit_mode(dev, mode, ATA_UDMA2);
 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
 	    atadev->mode = mode;
     }