Will 750Ti fit on x4 slot?

EV_Creeper

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Thank you for your time
I'm new to building PCs in general, and I'm thinking about building a PC with mainly an i5-6500 and a 750 Ti, which will work as the main GPU until Pascal comes out.
My question is, can the 750Ti fit in a x4 lane, so I can use it as a dedicated PhysX card? The motherboards I'm considering are
Asrock Z170 Pro4S
Gigabyte GA-H170.Gaming 3
Asus H170-PLUS D3
But I've seen that the 750Ti has a considerable size on the conector, and I'm not sure if it will fit on a x4 slot. And I'm also unsure if it will receive enough power via the PCI-E slot, since the card does not have a PSU connection. All I can find is "Needs a PCI-E 3.0 slot".
What do you think? Will it fit?
Also, any recommendations about these actual motherboars will be welcome. However these motherboards are the cheapest I could find, and any mobo that isn't one of those costs at least 2x the price of one of these. If you don't recommend any, I might as well build the PC with a 4590 and a h97 mobo.
 
Solution
I doubt you will have issues, but I would guess the system would become unstable if it was not getting enough power.

If you look close at the ASRock board you will see that it has an x16 slot, but simply only has the first x4 in contacts in the slot. You will also notice an power connector that the manual says should be connected when using more than 3 video cards(I am sure it would not hurt to connect it if you wish anyway). This connector is added to reduce the load on the standard 24-pin cable since 4 video cards alone could pull 300 watts from the 4 slots. You can have 4 video cards on that board because of the open ended slots(the cards would run at 1 @ x16 1 @ x4 and 2 @ x1).

23mmtx.jpg


Here is a...

DrRedstone

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If the card doesn't have a PSU connection, it will receive enough power, but the know if it will fit in a 4X slot really depends on the exact model
example EVGA Superclocked Nvidea GTX 750 TI 4GB
 
If the x4 slot is open and and nothing is in the way it should fit.

If a cards says PCI-E 3.0 is required the card may take more than the standard 75 watts most x16 pci-e slots allow(150 is possible with the right boards/revision). The lower link slots(x1/x2/x4) may not have enough power because they are not designed for higher powered devices.

You may be able to try it, but I can not promise it will work. A card that has a 6 pin power connector would have a better chance. crypto currency minors used low speed slots to add more cards to systems without issues, but they all had access to external power.
 

EV_Creeper

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Thank you for your answer
I think the asrock will not work, i picked it because it said Crossfire compatible but now I see it only has one x16 and 3 x1

However this is what it says on the specs page of the other motherboards

Gigabyte:
1 x PCI Express x16 slot, running at x16 (PCIEX16)
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
1 x PCI Express x16 slot, running at x4 (PCIEX4)
2 x PCI Express x1 slots
(All of the PCI Express slots conform to PCI Express 3.0 standard.)
2 x PCI slots

Asus:
1 x PCIe 3.0/2.0 x16 (x16 mode, gray)
1 x PCIe 3.0/2.0 x16 (max at x4 mode, black)
2 x PCIe 3.0/2.0 x1
2 x PCI

And the exact model of the 750 Ti I'm considering is EVGA 02G-P4-3753-KR 750 Ti Superclocked
 
Some boards list crossfire to onboard and an entry level dedicated card. This is only on the AMD side.

The Asrock website seems to list 2 x16 slots(one at x16 and one at x4). I think this is common because the cpu and chipset only have so many lanes to work with.

Z170 Pro4S -> Specifications
- 2 x PCI Express 3.0 x16 Slots (PCIE2: x16 mode; PCIE4: x4 mode)*
- 3 x PCI Express 3.0 x1 Slots (Flexible PCIe)
- Supports AMD Quad CrossFireX™ and CrossFireX™

*Supports NVMe SSD as boot disks


Since are using an x16 slot with only x4 lanes. I am going to have to guess they have taken power requirements of x16 slots into consideration. If they did not they would have just used an actual x4 slot.
 

EV_Creeper

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So there are actually 2 x16 slots on the motherboard, that are the same size but different speeds, and therefore the card will fit? That makes sense.
If, to test the power given on the x4 lane, I put the 750Ti there and stress it, will it damage if the motherboard doesn't give enough power?
 
I doubt you will have issues, but I would guess the system would become unstable if it was not getting enough power.

If you look close at the ASRock board you will see that it has an x16 slot, but simply only has the first x4 in contacts in the slot. You will also notice an power connector that the manual says should be connected when using more than 3 video cards(I am sure it would not hurt to connect it if you wish anyway). This connector is added to reduce the load on the standard 24-pin cable since 4 video cards alone could pull 300 watts from the 4 slots. You can have 4 video cards on that board because of the open ended slots(the cards would run at 1 @ x16 1 @ x4 and 2 @ x1).

23mmtx.jpg


Here is a link the ASRock site with all the board info. All 3 of the boards should be able to do what you want.
http://www.asrock.com/mb/Intel/Z170%20Pro4S/index.us.asp
 
Solution
I would guess the video driver would crash and reset, but with the manual listing using 4 video cards, I think they have you covered.

The other boards list crossfire so they clearly intend to see dual video cards as well. Hell I have a board with 4 slots (x16 + x16 or x8 + x8 + x8 + x8) that does not even have an extra power port. I never put that to the test mind you. All the 2 x 16 slot boards I have seen had no issues with getting power from the 20/24 pin connector.