Did anybody get any trouble with Seagate Barracuda 1 TB SATA hard drive working in ACHI mode in Windows 7? It is a very strange coincident. I had one 2TB IBM/Hitachi and three Seagate 1TB Barracuda working on the same machine in IDE mode for a few months. I switched BIOS and Windows to ACHI mode using the driver that came with this mobo, all the hard drives worked for a day or so, I shut computer down as usual, next day computer stopped recognizing one of the Barracudas freezing for a very long time on the BIOS check, then giving me BSOD when Win7 was finally trying to boot up. Ok, I disconnected this Seagate drive, tried it on the external controller - dead. Rebooted machine, it worked just great. One day later, means today, I tried to start the same machine with already 1 Seagate out - same issue. To make the long story short I can say that the second Seagate became dead. It spins like the first one, but the controller can't recognize this hard drive - second for last two days! It looks like the controller is dead or maybe the technical cylinders on these hard drives are overwritten or something like that. Any ideas? I tried IDE mode, rolled back the driver, no luck. So I returned the driver and BIOS to ACHI mode to test if this is a real problem with the driver or not. Anyway I will to send 2 hard drives to RMA. So who cares if there are 2 or 3 in the box. But what the real reason and if this is a real coincident or ACHI mode can kill the hard drive? Just D.