USB 3.1 PCIe card

[andy0842]

So I'm planning to buy a X99 Deluxe/USB 3.1 from Asus.

It has this PCIe card included that has 2 USB 3.1 ports, and yes it consumes PCIe lanes.

It says that the card runs at GEN 2.0 x2 or GEN 3.0 x1 

(http://www.anandtech.com/show/9004/asus-goes-usb-31-motherboards-pcie-cards-and-enclosures-tested)

 

Then, my question is, can I run two graphics cards in CF/SLI, PCIe SSD, and this USB 3.1 card?

If I can, how many lanes does each component consume?

 

[FruitBasketSilex]

Yes, x8/x8/x4/x2(2.0 chipset) for a total of 20 from CPU, and two (2 2.0 lanes) from chipset.

Also, if its in a x1 slot, it works off the chipsets pcie lanes, not the CPU.

EDIT: corrected for ssd.

EDIT: slight correction in math.

[Tedster]

Let's say you have two graphics cards and you're running them at x8 x8. That means 16 lanes taken up.

If you're using the 5820k you're starting with 28 lanes. This means you still have another 12 lanes. That'd be x4 for the SSD and x1 for the USB thing. So you have 7 lanes left.

 

If you go with the 5930k or 5960x, you start with 40 lanes instead of 28.

 

Meh, the above post has you covered.

[andy0842]

So if I'm getting 5960X, both of my GPU will run at x16, USB 3.1 card at x1, and SSD at x4, which is a total of 37.

 

Is my math correct?

[FruitBasketSilex]

So if I'm getting 5960X, both of my GPU will run at x16, USB 3.1 card at x1, and SSD at x4, which is a total of 37.

Is my math correct?

36 total lanes being used from CPU, and two of your 2.0 lanes from the chipset, for the USB3.1.

You have enough capacity there for another ssd too, while retaining a nice x16 on both gpus, although x8 has no performance hit.

[andy0842]

36 total lanes being used from CPU, and two of your 2.0 lanes from the chipset, for the USB3.1.

You have enough capacity there for another ssd too, while retaining a nice x16 on both gpus, although x8 has no performance hit.

So you said 2.0 x2 from chipset. What does this exactly mean?

there exist two separate PCIe lanes from CPU and chipset?

[FruitBasketSilex]

So you said 2.0 x2 from chipset. What does this exactly mean?

there exist two separate PCIe lanes from CPU and chipset?

Yes, the x99 chipset itself has 8 PCIe2 lanes that operate random bits, and the x1 slots.

While you would have 37 total lanes being used, (counting all as 3.0), not all are coming from the CPU, the USB card will work via chipset lanes.

BTW, pcie 1 x16 = PCIe2 x8 = PCIe3 x4.

[andy0842]

OH OK

So I have another 4 lanes of GEN 3.0 to spend for, say, SSD only if I had PCIe slots.

alright, thank you so much.

[FruitBasketSilex]

OH OK

So I have another 4 lanes of GEN 3.0 to spend for, say, SSD only if I had PCIe slots.

alright, thank you so much.

No problem! Have a good day.