hello sorry dont know where to post my problem about my NEC DVD writer. uhm i cant make it run on Ultra DMA mode 4 (I’ve been searching this forum for awhile) I did change my IDE to 80 pins, update my VIA chipset, update my dvd firmware to 1.03 install and uninstall my DVD drive, still it detects as multi-word DMA mode 2 (on my secondary IDE) and my HDD is detected as Ultra DMA mode 5 (on my primary IDE). I think my board support UDMA modes but still cant manage to change it to UDMA mode 4. can u help me about this or any idea on how to fix my problem. thank you very much.
AMD athlon 1800
NEC dvd optiarc AD 7170A
Samsung CD-rw (not connected at the moment)