DMA Mode for ATA/ATAPI Devices By : rich 9 April 2002 0 Uncategorized DMA Mode for ATA/ATAPI Devices in Windows XP. I can’t get my boot drive on my P3V4x into Ultra DMA mode anymore. STaty stuck in PIO. Tried to toggle the setting, but it won’t stick. It used to work under Windows 98. Share this:TweetPrintPocketEmailLike this:Like Loading... Related Post navigation Previous Previous post:Next Next post: