"Larry" <(E-Mail Removed)> wrote in message
news:96B3DFBBEDC6751D7E@204.153.244.156...
> Is the following really true of XP?
>
>
> from: http://www.techbargains.com/hottips/hottip12/index.cfm
>
> "Make sure your hard drive is not connected to the same IDE port as
> your CD/DVD-ROM. Each IDE port is programmed to operate at the slower
> of the two devices on the port, so you could be slowing down access
> to your primary hard drive by leaving a CD-ROM on the same channel.
> Put your CD/DVD-ROM on the Secondary IDE port."
The answer is... it depends. Do traffic lights slow down my drive to the
grocery store? Not if they're always green.
The same principle applies to IDE controller sharing. The controller can
only respond to one request at a time. So, having two devices sharing the
same controller could lead to a situation where one device is going to hit a
"red light" and end up waiting for the controller to service its request.
In terms of practical use, this never happens or happens so infrequently
that it is not a perceptible impact. However, if you are running a
file-streaming application that is more likely to cause many of these "red
lights", then you would definite want to re-configure your IDE devices or
use a different bus type, like SCSI.
Regards,
Carl