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Sata 3.0 Motherboards

sleddawg

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Sata 3.0 Motherboards
« on: July 10, 2010, 07:50:31 am »
     Why are there only 2 internal USB/SATA 3.0 ports on the new motherboards, and 6 SATA/USB 2.0 ports?  Why, if they are backwards compatible, are they not all USB/SATA 3.0 compliant?
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absic

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Re: Sata 3.0 Motherboards
« Reply #1 on: July 10, 2010, 07:52:02 am »
I don't know why this is but it is a good point to raise.
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onemilimeter

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Re: Sata 3.0 Motherboards
« Reply #2 on: July 10, 2010, 08:17:36 am »
Quote from: sleddawg on July 10, 2010, 07:50:31 am
Why are there only 2 internal USB/SATA 3.0 ports on the new motherboards, and 6 SATA/USB 2.0 ports?  Why, if they are backwards compatible, are they not all USB/SATA 3.0 compliant?

X58 does not support USB/SATA3.0. Gigabyte uses a Marvell chip to implement the USB/SATA3.0. However, it has been reported in certain RAID configuration, the SATA2.0 performs better than the SATA3.0. Many suspects that it's a problem due to the Marvell chip but Gigabyte has not commented yet.
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absic

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Re: Sata 3.0 Motherboards
« Reply #3 on: July 10, 2010, 08:33:44 am »
OK
SATA3 I can fully understand, it isn't working properly yet and there does seem to be issues with the Marvell Chips that needs to be resolved.

But USB3 uses a different Chipset (on my AMD board it is an NEC one) so, unless there is a chipset limitation that we are not aware of, I have to agree with the original question, why only 2 USB3 ports when they are backwards compatible?
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Dark Mantis

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Re: Sata 3.0 Motherboards
« Reply #4 on: July 10, 2010, 09:58:55 am »
Money! The short answer is down to the cost involved. When you are building boards with that many components they try and cut back on any unneccessary expense. It always seems stupid to me (just like why they don't fit uPVC windows in  new houses) because the end user would be happy to pay a little extra for the benefits. That's accountants for you.
« Last Edit: July 10, 2010, 10:33:56 am by Dark Mantis »
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Peteruk

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Re: Sata 3.0 Motherboards
« Reply #5 on: July 10, 2010, 10:20:12 am »
Quote from: Dark Mantis on July 10, 2010, 09:58:55 am
Money!
No its because Intel has not made a chip for SATA 3 and USB 3 support yet.
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absic

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Re: Sata 3.0 Motherboards
« Reply #6 on: July 10, 2010, 10:27:43 am »
Quote from: Peteruk on July 10, 2010, 10:20:12 am
Quote from: Dark Mantis on July 10, 2010, 09:58:55 am
Money!
No its because Intel has not made a chip for SATA 3 and USB 3 support yet.

But how does this  apply to the AMD Platform? 6x SATA3 ports & still only 2 x USB3 ports
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Dark Mantis

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Re: Sata 3.0 Motherboards
« Reply #7 on: July 10, 2010, 10:34:46 am »
The only reason in your case is bandwidth maybe.
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absic

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Re: Sata 3.0 Motherboards
« Reply #8 on: July 10, 2010, 10:47:27 am »
Plenty of USB 2.0.

For example the GA-890GPA-UD3H has 6X SATA3.0; 2 X SATA2.0; 2 X USB3.0 and a total of 12 USB2.0 so if it's down to bandwidth why not supply 8 X USB 2.0 and 4 X USB 3.0?
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Peteruk

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Re: Sata 3.0 Motherboards
« Reply #9 on: July 10, 2010, 10:51:47 am »
Quote from: absic115 on July 10, 2010, 10:27:43 am
But how does this  apply to the AMD Platform? 6x SATA3 ports & still only 2 x USB3 ports
Thats AMD this is Intel, AMD made a chip for SATA3 natively USB 3 support for AMD are still by addon chips.

Intel gets SATA3 & USB 3 support by addon chips. 
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absic

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Re: Sata 3.0 Motherboards
« Reply #10 on: July 10, 2010, 11:09:42 am »
So, is the answer to the original question
Quote from: sleddawg on July 10, 2010, 07:50:31 am
     Why are there only 2 internal USB/SATA 3.0 ports on the new motherboards, and 6 SATA/USB 2.0 ports?  Why, if they are backwards compatible, are they not all USB/SATA 3.0 compliant?
that it's due to a limitation of the chips?
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Dark Mantis

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Re: Sata 3.0 Motherboards
« Reply #11 on: July 10, 2010, 11:36:05 am »
Quote from: absic115 on July 10, 2010, 10:47:27 am
Plenty of USB 2.0.

For example the GA-890GPA-UD3H has 6X SATA3.0; 2 X SATA2.0; 2 X USB3.0 and a total of 12 USB2.0 so if it's down to bandwidth why not supply 8 X USB 2.0 and 4 X USB 3.0?
But the banwidth consumed by five USB2 is only equal to one USB3, so you would soon eat up all the available bandwith if they were all USB3.
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6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
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absic

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Re: Sata 3.0 Motherboards
« Reply #12 on: July 10, 2010, 11:37:30 am »
Oooo, my 'ead 'urts.  :o
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Dark Mantis

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Re: Sata 3.0 Motherboards
« Reply #13 on: July 10, 2010, 11:41:24 am »
Mine too. I was just hoping that I had the figures right ;)
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Gigabyte X58A-UD7
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Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
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Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
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