1. Try the DMA flip the setting noted at http://www.microsoft.com/whdc/device/storage/IDE-DMA.mspx
DO NOT TAKE what it displays as truthful. A bug/feature of XP may show DMA as functioning, but it isn't. Performing this simple procedure makes sure it's in DMA.
2. Not working good? It's time to run the maker's DRIVE FITNESS TEST.
I didn't write about incorrect setups. You would know and reveal if there was any doubt there or you used to the old slower 40 conductor cables.
I have 2 160 GB internal hard drives(western digital 8mb cache)-1 main and 1 backup. When I turned on my PC it went into a Windows recovery screen and said that it didn't recognize the D: drive(backup). I then rebooted and then it went back to that screen and said that it was renaming sectors and files of the drive so that it could recognize it. After that anything related to the drive is soooo slow(less than half the speed) when I transfer files, extract files, burn data. Will formating the drive fix this? Is there anything else I can do? Thanks.