Which speed wins?

w^rl0rd

Lets say you have an ATA-133 HDD (133MBps) and an UDMA 2 (16.6MBps) CD-ROM on the same EIDE cable;

Would the max throughput be 16.6MB?

Basically, does the slowest device on the cable determine the throughput?

w^rl0rd

Anybody?

I'm in the middle of in intense argument right now and need some backup.
I think it's based off of what device is the master.

Help!!

Junkie

I am sitting in my A+ cert class right now!! My teacher says that you are right. On an EIDE cable the slower speed applies.

CCIE2008

I am pretty sure that they are independent. If you check you BIOS you will notice the two different UDMA/PIO modes which indicate different speeds. As long as your motherboard has UDMA133 controllers and you are using a UDMA133 cable, your drive should operate at 133 and your CDROM at slower speeds. I have a data drive running at 133 and a cdrom on the same controller, which runs slower. I have used Sandra Benchmark to verify. There might be a posibility that older motherboards work like you are asking, but I am not positive.

I hope this helps.

CCIE2008

One more additioin to my post. I would recommend that you put them on seperat controllers to reduce some I/O activity on the controller.