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Would a 40? wire (ATA33) cable make an ATA66 drive run slower?

R

RU482

Lifer
I'm doing some work on a compaq from work and I noticed it has a 5400RPM Maxtor DiamondMan VL20 hardrive, which is ATA66. I know that this drive, due to is age, platter density, and rotation speed, has no chance of ever hitting ATA66 speeds (even if the compaq mobo would support it...doubtful). But the essential question I am asking is...Does a 40 pin cable on a drive that's datasheet specifies an 80 pin cable (ATA33 vs ATA66) effect the data throughput of the drive and as a result the speed of the system???


Hehe
 
The only situation in which it would make a difference is if both the drive and the controller were both ATA/66, & then only in burst transfer. The drive probably has a 2 MB or smaller cache, so you'd get 2 MB tops before you'd be back to being limited by the sequential read speed of the drive.

If the controller supports it, you might as well.

If not, it won't make a bit of difference.

Viper GTS
 


<< Absolutely! No BS - it makes it a legacy ATA 33 drive. >>



If the controller is an ATA/33 controller it's already that. He already said he suspects the motherboard is not ATA/66.

Viper GTS
 
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