Mix UDMA and PIO, can he

--- I have a LG 52x CD that has UDMA mode, only PIO.
Is it okay to leave it connected on the same cable from my HD (which is UDMA100)

--- The most advisable in your case, is to use a 80-wire cable to the HD in IDE1 and another 40-way cable to the CD-ROM on IDE2.

--- The tendency is to stay on the bus speed of the slowest device, try to put in different cables, ok Provides PIO mode if I remember correctly 16mb / s against the possible 100mb / s ATA100

--- Do as our friend Mark said the only way you'll be able to perform better both in Hd as in reading Cd-Rom. : Wink: ---

do as everyone has said, always go work at the speed of the slowest device, if the IDE 2 ja esteje
with two devices try to use the hd with some device ide1 speed to the nearest
HD so the performance hit will be lower