I have a PC with a Gigabyte EP43-DS3L motherboard, and a Samsung HD322HJ 320Gb Sata drive. The machine has Windows XP Pro installed on it. I notice in device manager (and also in the HD Tune) utility that it is running in UDMA-Mode 5, when it apparently supports UDMA-Mode 7. In the bios, the sata mode is set to native IDE mode, rather than legacy IDE. I have never owned a PC with a sata drive before so, my question is...
1 - Do all sata drives run in native ide mode work at udma mode 5
2 - If not, how do i make it use the best possible mode it supports?
not quite right there u need smasung HITUL utility to change the UDMA if your motherboard supports higher then UMDA 5 (it will test wether your motherboard can support it ) mines currently running at UMDA 6 (can show u a screen of HD tune if you think i'm lieing ) tho the higher the sequential read and write become (increase in UMDA ) will cause lower random access times and higher CPU usage
also apache_lives were talking about a HDD here .. so it DOES matter as the HDD can work at UDMA 5 or higher