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USB3 and SATA III implementation

Tags:
  • Motherboards
  • SATA
  • USB3
  • PCI Express
Last response: in Motherboards
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September 25, 2010 10:08:46 PM

Hi,

Is it true that all current mobos implementing USB3 and SATA III have to borrow lanes from PCI-E, therefore hurting SLI/Xfire set-ups?
If not, is this the case in P6X58D Premium?
Thanks,

Galta

More about : usb3 sata iii implementation

September 25, 2010 10:33:00 PM

jaquith said:
X58 MOBO they do NOT borrow; the P6X58D Premium does not.

http://www.intel.com/products/desktop/chipsets/x58/x58-...


Jaquith,

Thanks.
Just wondering: I was reading a review of this mobo at benchmarkreviews.com, and they said it DOES borrows from PCI-E lanes.
Later on, someone said that X58 has 36 PCI-E, 32 of them being reserved for graphics. Theoretically, the remaining 4 lanes would be enough for USB3 and SATA III, but someone said those remaining 4 lanes are reserved for ICH10R.
To make sure I got your point: somehow USB3/SATAIII controller share the lanes with ICH10R, right?
Thanks again,

Galta
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September 26, 2010 2:20:59 AM

AMD's 890FX chipset does not have that problem.


http://www.tomshardware.com/reviews/amd-phenom-ii-x6-10...

890FX

Starting from the top of the stack, the 890FX succeeds the 790FX as AMD’s discrete graphics-only flagship. The northbridge component sports 42 total PCI Express 2.0 lanes, 32 of which can be used for graphics (2 x 16 lanes or 4 x 8 lanes), four of which are ganged into a 4-lane link, and six of which attach to x1 devices like USB 3.0 and gigabit Ethernet controllers.


MRFS
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September 26, 2010 11:56:46 AM

MRFS said:
AMD's 890FX chipset does not have that problem.


http://www.tomshardware.com/reviews/amd-phenom-ii-x6-10...

890FX

Starting from the top of the stack, the 890FX succeeds the 790FX as AMD’s discrete graphics-only flagship. The northbridge component sports 42 total PCI Express 2.0 lanes, 32 of which can be used for graphics (2 x 16 lanes or 4 x 8 lanes), four of which are ganged into a 4-lane link, and six of which attach to x1 devices like USB 3.0 and gigabit Ethernet controllers.


MRFS

MRFS,

Thank. So if I am decided to go Intel, I am forced to trade-off?
Anyonelse?

Galta
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Best solution

a c 717 V Motherboard
September 26, 2010 6:06:14 PM

^ The PCIe 2 runs directly off the X58 IOH, but the the Marvell 9128 & NEC
D720200F1 runs separately off the X58 IOH and they DO share bandwidth.

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September 26, 2010 10:57:00 PM

Best answer selected by galta.
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