SATA III is a LIE

[pszilard]

I paid good money for a mobo with SATA III plus 2 Hitachi 2TB SATA III and OCZ SATA III SSD to get high performance. I have latest firmwares yet max speed I get is 250MB/sec.

This is FALSE advertising!

[Dark Mantis]

Hi and welcome.

What makes you think it is the Gigabyte motherboard that is at fault here ? If anything I would suspect the Hitachi drives.

[pszilard]

I have tried the Hitachi drives, both singly and in RAID 0, as well as an OCZ Agility 3 SSD - all SATA III. I am unable to ever get over 250MB/sec access peak and average is less. This is not much different from my SATA II previous system.

[Dark Mantis]

Now I have read your other post and realise that you are talking about an old X58 board with a Marvell chip controlling the SATA3 ports I understand the problem. I thought you were talking about a new board.

The Marvell issue has been well known for years now and I for one was caught out by it too. The fastest  most stable ports om your motherboard are the Intel ICH10R controlled ones SATA_0 and SATA_1 so you would be better transferring yout drives to them.

[Aussie Allan]

                     A little information

  

      The latest, fastest, glass plattered spinning magnetic Drives .... at 7200RPM .... max out at about 125Mb/s ... and that's on the very outer edge of the platters .... SataII ... SataIII ... or SataIIIIIIIIIIIIIIIIIIIIII will make no difference to the drives maximum output ... the speed improvements can only be utilized with SSD ..... the more you pay  ....   the more you get.

  The  OCZ Agility 3 SSD has a theoretical (about) 500Mb/s read/write and this is achievable on the board you have if configured properly .... try putting it on ,  and it alone on the ICH10 controller and see how thing go .... if you can get it to 450ish read/write .... that's what should be achievable from users posting around the traps

  Aussie Allan

  

[Dark Mantis]

Nicely explained Allan. There is a lot of mumbo jumbo talked about SATA speeds and what people expect to be able to get out of them.