ATA100 Harddisk + CDROM on one IDE channel.

[PrimalX]

Is it gonna limit the harddisk to DMA33 mode?

[Fingers]

First, ATA66 and ATA100 aren't "all that" anyway. http://www.realworldtech.com/page.cf...WT011701000000

Second, modern controllers are supposed to be able to switch ATA modes on the fly and use the full capabilities of both drives. http://www.seagate.com/support/kb/di..._ata_66.html#8

Connecting a CD-Rom to the same cable as a hard drive will not automatically slow down the hard drive, however, using the hard drive and CD-Rom at the same time will definitely "slow down" the HDD because both devices are sharing time on the cable, and the CD-Rom transfers data at a slower rate than the HDD will.

The same thing is also true for two HDD's (any ATA mode) on the same channel; drive-to-drive transfers are always faster between devices that are on different channels (cables).


[This message has been edited by Fingers (edited 06-27-2001).]