Can only get Multi-Word DMA mode 2 from UDMA hard drive where previously UDMA worked.
Posted on 2004-10-07
I recently realised that my hard drive on my Primary IDE channel is only running at Multi-Word DMA mode 2, according to Windows XP Pro SP2... device manager. This is very strange since it used to run at UDMA mode 6! I've downloaded and installed the VIA Hyperion BUS master drivers and checked the cables. I've also put the Hard drive on its own ribbon cable so that the speed didnt lower for the CD drive on the same IDE channel(?). It seems to have made no difference. The BIOS i changed from AUTO to specify i wanted UDMA 100/133 or something like that, and they seem like the only options. My motherboeard number is GA7VAX, and the BIOS is the latest version. I've also tried Uninstalling the Primary, Secondary and BUS master drivers from Device manager including the Hard disk itself, and restarting to see if it would re-detect and re-enable UDMA mode 6, but no luck there either. I know what i'm doing with computers on the software side, but my hardware knowledge is severely lacking. Could someone please offer any suggestions or authoritative advice? My computer is running S-L-O-W.........
P.S. My Hard Disk is a Maxtor Diamondmax 8 40Gig Ultra ATA/133.
I also have a DVD player and a Sony CD Writer....... but the problem also occurs when they arent connected. At the moment, ALL my drives, optical and hard are running at Multi-Word DMA mode 2.