PCI-E Lane help.

[danielhowk]

im using z170 asus hero http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/70055-asus-maximus-viii-hero-z170-motherboard-review-3.html 

they have 3 pci-e lane if im not wrong. 

since im using zotac amp extreme 980ti it blocks my 2nd pci-e lane. 

and i want to put my intel 750 / samsung 950 pro on the 3rd pci-e lane will that decrease performance ?

1st lane = zotac amp extreme

2nd lane = block by the size of the graphic card

3rd lane = intel 750 or samsung 950 pro. will that decrease the performance. or arent able to optimize the speed of the ssd ? 

[Trik'Stari]

It won't decrease performance, or at least it shouldn't. And PCI-E Lanes are the actual connections within each slot. The number of traces that go from the slot to the CPU. The actual physical slot, is just called a slot.

 

[G27Racer_188]

You can put the SSD in the second 16x slot since there is 2 slot gap between 16x slots. that means that 3slot 980ti amp extreme won't block the next 16x slot.

[i_build_nanosuits]

1st lane = zotac amp extreme

2nd lane = block by the size of the graphic card

3rd lane = intel 750 or samsung 950 pro. will that decrease the performance. or arent able to optimize the speed of the ssd ? 

do that it's fine, no performance issues.

[danielhowk]

You can put the SSD in the second 16x slot since there is 2 slot gap between 16x slots. that means that 3slot 980ti amp extreme won't block the next 16x slot.

 

 

do that it's fine, no performance issues.

they replied 

"Since it won't be directly off the CPU, you'll have a slightly increased amount of latency with the NVMe compared to if you installed it in PCIE_X16/X8_1 instead of putting the Zotac there. But for most applications of the average user that degree of latency supposedly is negligible, and it's a tradeoff you make to get the best speeds for the video card."

[i_build_nanosuits]

they replied 

"Since it won't be directly off the CPU, you'll have a slightly increased amount of latency with the NVMe compared to if you installed it in PCIE_X16/X8_1 instead of putting the Zotac there. But for most applications of the average user that degree of latency supposedly is negligible, and it's a tradeoff you make to get the best speeds for the video card."

Your SSD will ride on PCIe 2.0 interface at X4 speed, lanes which are provided through the Z170 chipset and not directly from the CPU which provide PCIe 3.0 interface.

But the difference between PCIe 2.0 vs 3.0 has a negligeable impact even when dealing with modern video cards, so your SSD will be more than fine when used at pci 2.0 X4 speed you won't have any measurable performance difference.

[CapricaBuccaneers]

The first two slots are PCIe 3.0 x16 meaning you can plug your Graphics card into either of them. Both of these slots are directly connected to the CPU so there is no difference in speed.

There's nothing stopping you from using PCIe 3.0 x16 slot 1 for the SSD and slot 2 for the graphics card.

I'm speaking from experience because I had to put my GPU into slot two with my first CPU cooler. There was zero difference in the running speeds.

[i_build_nanosuits]

The first two slots are PCIe 3.0 x16 meaning you can plug your Graphics card into either of them. Both of these slots are directly connected to the CPU so there is no difference in speed.

There's nothing stopping you from using PCIe 3.0 x16 slot 1 for the SSD and slot 2 for the graphics card.

I'm speaking from experience because I had to put my GPU into slot two with my first CPU cooler. There was zero difference in the running speeds.

this is also true, you could run the GPU in slot 2 and install the SSD on top of it in slot 1.

[NumLock21]

The board you want to get has 3 physical x16 slots. PCIe x16 #1 runs at x16 with single card. PCIe x16 #2 runs at x8, and when a gpu is installed into this slot, then PCIe x16 #1 also runs at x8. PCIe x16 #3 runs at x4.

PCIe x16 #1 and PCIe x16 #2, the lanes are supplied by your cpu. The lanes are PCIe 3.0

PCIe x16 #3 the lanes are supplied by your Z170 chipset and the lanes are also PCIe 3.0

[danielhowk]

Your SSD will ride on PCIe 2.0 interface at X4 speed, lanes which are provided through the Z170 chipset and not directly from the CPU which provide PCIe 3.0 interface.

But the difference between PCIe 2.0 vs 3.0 has a negligeable impact even when dealing with modern video cards, so your SSD will be more than fine when used at pci 2.0 X4 speed you won't have any measurable performance difference.

 

 

The first two slots are PCIe 3.0 x16 meaning you can plug your Graphics card into either of them. Both of these slots are directly connected to the CPU so there is no difference in speed.

There's nothing stopping you from using PCIe 3.0 x16 slot 1 for the SSD and slot 2 for the graphics card.

I'm speaking from experience because I had to put my GPU into slot two with my first CPU cooler. There was zero difference in the running speeds.

 

 

The board you want to get has 3 physical x16 slots. PCIe x16 #1 runs at x16 with single card. PCIe x16 #2 runs at x8, and when a gpu is installed into this slot, then PCIe x16 #1 also runs at x8. PCIe x16 #3 runs at x4.

PCIe x16 #1 and PCIe x16 #2, the lanes are supplied by your cpu. The lanes are PCIe 3.0

PCIe x16 #3 the lanes are supplied by your Z170 chipset and the lanes are also PCIe 3.0

slot 1 = graphic card

slot 2 = empty

slot 3 = intel 750 ssd / samsung 950 pro

or

slot 1 = intel 750 ssd / samsung 950 pro

slot 2 = graphic card

slot 3 = empty

which is better and faster ? 

[NumLock21]

 

slot 1 = graphic card

slot 2 = empty

slot 3 = intel 750 ssd / samsung 950 pro

or

slot 1 = intel 750 ssd / samsung 950 pro

slot 2 = graphic card

slot 3 = empty

which is better and faster ? 

 

 

Slot 1= x16

Slot 2= x8, when gpu is installed here, then slot 1 will run drop down to x8

Slot 3= x4

Only the Intel 750 uses either a PCIe based card or U.2 interface. The Samsung 950 Pro only some in M.2 form factor. The maximum speed a NVMe drive needs is x4, anything above that will be a waste.

[i_build_nanosuits]

 

slot 1 = graphic card

slot 2 = empty

slot 3 = intel 750 ssd / samsung 950 pro

this ^^

your SSD will run at pcie 2.0 X4 speed which is plenty and will not slow down the drive at all.

[danielhowk]

Slot 1= x16

Slot 2= x8, when gpu is installed here, then slot 1 will run drop down to x8

Slot 3= x4

Only the Intel 750 uses either a PCIe based card or U.2 interface. The Samsung 950 Pro only some in M.2 form factor. The maximum speed a NVMe drive needs is x4, anything above that will be a waste.

 

 

this ^^

your SSD will run at pcie 2.0 X4 speed which is plenty and will not slow down the drive at all.

U.2 intel 750 and samsung 950 pro m.2 form factor. both of these put on the pci-e slot right ?

[NumLock21]

U.2 intel 750 and samsung 950 pro m.2 form factor. both of these put on the pci-e slot right ?

Asus Z170 Deluxe comes with 2 M.2 connectors, onboard and another in a PCIe card. Install Intel 750 into PCIe slot and Samsung 950 Pro onto the onboard M.2 connector.

[danielhowk]

Asus Z170 Deluxe comes with 2 M.2 connectors, onboard and another in a PCIe card. Install Intel 750 into PCIe slot and Samsung 950 Pro onto the onboard M.2 connector.

2nd pci-e slot is blocked by graphic card ( 3 slot card ) 

and im using asus z170 hero. 

[NumLock21]

2nd pci-e slot is blocked by graphic card ( 3 slot card )

and im using asus z170 hero.

From the pic, the 2nd x16 slot looks to be further apart than usual, so your 3 slot gpu might not even block it. Anyway 750 into 3rd x16 slot and 950 pro into m.2