I was hoping someone could provide a solution. I have a Alienware PC I upped to windows VISTA with 2 SATA hard drives in raid configuration. Those work fine, but I also have a Maxtor data drive on a Promise SATA150 TX2 controller that is just not working right. It recognizes the drive fine, but when I go to transfer files, it takes foreever like drive access is messed up. Of course there are no new drivers for the Promise controller, so I have no where to go there. I have an Abit AV8 motherboard. Any hints will be appreciated as I am about to kick my box.

What is your system RAM?
RAM and the CPU speed determine how fast your computer operates.

2GB. I doubt ram has much to do with it. Its just the one hard drive that is having issues. The 2 sata drives that run off the motherboard controller seem fine.

Are you sure that you have set one of the hard-drives as 'master' and the other as 'slave'?

you dont with sata drives do you? They all auto set as 0 and there are no jumpers on Sata drives.

I bought a new Dell XPS410 with Vista. It had the same problem with very slow disk access. After fifteen hours on the phone with Dell running numerous diagnostics, re-imaged the hard drive, etc. etc., all to no avail, we were both so frustrated that they told me to pack it up and ship it back for a full refund. I was disappointed, but I bought a desktop from another company and made sure it had XP Professional instead of Vista. Microsoft shouldn't have released a BETA version of an operating system. Shame on them! Get rid of Vista and your problems will be over!

Make sure your data HDD is jumpered to be limited to 150/s as that is what the controller is. If you have a 300/s unjumpered you will have substancial issues.