View Full Version : quick and dirty harddive+cd rom test

05-01-2002, 05:39 PM
in response to the ata questions down the page i did a very quick test to see if pairing a cdrom and a harddrive on te same ide channel would slow down the harddrive.

setup- one baracudda2 ata66 hdtach adv of 25MB/s sustained read speed, hp cd burner ata33 and poineer dvd ata66.(auto insert is off)

a 568 meg folder was coppied from the hardrive to my main drive (raid array).

times- hd on its own 54 sec hd + cd 57sec hd + dvd 55 sec.

bugger all difference between them.

however if the cdroms where in use i would say that the times would be different but i can't test that just at the mo.

05-01-2002, 06:45 PM
Hello tweak'e

Your results would depend on lots of factors, including your motherboard spec's cabling etc also results would change as soon as the CDRom is brought into use, have a look at the following link >


05-01-2002, 07:07 PM
thx allan that site had a good bit of info. the reason why the times were not much diifferent is proberly due to the hardrive being slower than 33MB/s. its basicly running the same speed at ata33 as it was at ata66. unfortunatly i don't have a faster spare drive and my mates newish one tested slower than 33MB/s. if anyone has some spare time to run some testing..............;-)