FadedTimes 0 Posted July 7, 2001 I have a Maxtor (Promise) Aultra ATA 100 controller and I'm getting preformance no better than UDMA 33 (XP pro RC1 2505). I have a ATA 100 5400rpm drive on IDE1 of the card and a ATA 66 7200rpm drive on IDE2. In windows 2000 I would get better than ATA UDMA 66 preformance, but now in XP it is slow. When I installed XP it detected my card as a Promise IDE controller and I thought maybe it was just bad Microsoft drivers, so I installed Maxtor's drivers and got the same results in tests under Sisoft sandra 2001te pro. I also noticed it when just copying files from one drive to the other. My next step is to try Promise's drivers, but I think it is maybe the OS. I have an Abit BH6 (Intel BX) PIII 900Mhz 384mb ram. I had great preformance in win2k and winXP is not going to well. Share this post Link to post