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DVD ROM SATA3 OR SATA3 improvement or indiference? SATA doubts

Last response: in Components
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January 10, 2012 8:27:56 PM

Hi, I would like to know if it matters that I use a SATA3 or SATA2 on my DVD rom, because my MOBO only came with 2 SATA3 cables forcing me to sort them.

Is there any improvement?

Will my SATA2 cable run faster in a SATA3 port and device or I will need to buy a SATA3 cable?

I got an ASUS M4A89GTD PRO

TY :o 
January 10, 2012 8:37:00 PM

I think you'll find that sata 3(Gbps) and sata II are the same, sata 6(Gbps) and sata III are the same.

But you are right in your suspicisions are correct a DVDrom drive will not benefit, blueray might I suppose?
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January 10, 2012 8:41:58 PM

13thmonkey said:
I think you'll find that sata 3(Gbps) and sata II are the same, sata 6(Gbps) and sata III are the same.

But you are right in your suspicisions are correct a DVDrom drive will not benefit, blueray might I suppose?


How about the cables? SATA3(6GBPS) with a device that supports it but without the SATA3 cable?
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January 10, 2012 8:43:45 PM

it is best to use sata III devices with sata III cables if, they go beyond 3Gbps (300MBps or thereabouts). They are allegedy better made, and can cope with the higher frequencies.
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January 10, 2012 8:44:53 PM

but what if I use SATA2 cables (3gbps) instead of SATA3?
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January 10, 2012 8:46:34 PM

on a higher speed sata III device, like an ssd at 550MBps then you may get errors etc.
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January 10, 2012 9:00:04 PM

13thmonkey said:
on a higher speed sata III device, like an ssd at 550MBps then you may get errors etc.


These people say other things

http://www.tomshardware.com/forum/300583-31-sata-sata-c...

Anyway, ty. ;) 

btw Does anyone if there is a way to know at what speed is a device running at(6GBPS OR 3 GBPS)?
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January 10, 2012 9:08:08 PM

look at T_T's first comment, using sata II cable on a sata III device = sata II speeds.

I've also read a lot of issues on ssd forums as these are the only devices that stress these cables.

look at garfields comments at the end.

Your choice as to what to believe, perhaps you should have searched first.
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January 11, 2012 12:26:36 AM

Unless the device in question is an SSD it is pretty much irrelevant if it is running at 3 or 6 Gb/s. Mechanical Hard Drives and optical drives aren't fast enough to saturate SATA 3Gb/s bandwidth. SATA 6 Gb/s is backwards compatible so everything will work, though if your DVD or hard drive is only SATA 3 Gb/s, the 6 Gb/s port will revert to the slower speed of the device. In any case, you only need to worry about this if you have an SSD and it is running slower than it is supposed to, or running into errors.
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January 11, 2012 12:41:51 AM

A DVD can only push data around the 20MB mark. This means even ATA/33 is fine for an optical drive. They only went SATA because IDE is dying off. You can even buy boards these days that have no IDE ports on them.

I'd use the SATA 6.0 cables on any truly high speed devices, or your fastest SSDs. As mentioned if you're going to have a problem that's where it would be.
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