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Asus P5QL PRO sata question....


Daytrader

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@dyatrader

BUT there is still a misunderstanding.

Do no confuse bus speed with actual device (or data transfer) speed.

Benchmark your disk (and possibly find a public benchmark of it and several other disk to make a comparison).

A SATA interface is credited for THEORETICAL:

http://en.wikipedia.org/wiki/Serial_ATA

2.1 SATA revision 1.0 - 1.5 Gbit/s - 150 MB/s

2.2 SATA revision 2.0 - 3 Gbit/s - 300 MB/s

2.3 SATA revision 3.0 - 6 Gbit/s - 600 MB/s

as always happens most of the hype is about the theory, any common 7200 RPM hard disk SATA 2 or SATA 3 will not be that much faster than a very fast SATA1 disk, as more or less the "saturation" of a mechanical hard disk is near the 150 Mb/s (and in day-to-day opreration what really counts is read times and "random access")

Check this:

http://www.computerworld.com/s/article/9175410/SATA_6Gbit_sec._Does_it_double_your_SATA_speed_

and this (to have an idea how different settings with differnet disk drives may be largely different):

http://expertester.wordpress.com/2008/07/24/ahci-vs-ide-–-benchmark-advantage/

jaclaz

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Thankyou for that post, i will do some tests once i get my system up and running, i just wanted to make sure my new sata hard drive will still have some benifits connected to the sata port(even thou AHCI wont be enabled or sata drivers installed ) on motherboard over a old ide drive connected to the old ide slots, and allen2 confirmed it will be enabled as a sata drive still.

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