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How to set HD from PIO to DMA mode??
I buy a new drive 160Gb SATA (ST3160212AS)and attach to my system which already has one ATA drive but it copies files very slowly. In BIOS, I choose "RAID signed/ATA" mode because my OS is running on ATA harddisk. I found in Device Manager->IDE ATA/ATAPI Controller-> Properties that the SATA drive is using PIO mode not DMA. I tried to uninstall Primary IDE driver and restart computer but it doesn't work out. Can you tell me how to solve this problem.
