From the specs it should support UDMA 4. Could any 165P6S/160P6S owners confirm please? I have a drive that only seems to support UDMA 2. Yes 80-pin cable(s), master/slave settings, & MS vs Intel ATA drivers (i875 chipset) have been tried. The device is secondary/master. KProbe drive info lists UDMA 4 as supported, but POST & WinXP dev man show UDMA 2. Other ODD work fine as secondary/master with UDMA 4.
Edit: FW MS0M & MV7U have been tried.