help me with pci-e lanes

[Mr.Wang]

hello guys,

 

what if:

i got a z170 mobo

dropped in a gtx 1080 

and only 1x m.2 

(+ 1 mouse a keyboard and a ssd)

will my gtx 1080 loose pci-e lanes due to

the m.2 using up lanes?

if so will it run slower?

 

thanks!

[Mr.Wang]

2 minutes ago, wrathoftheturkey said:

sometimes it does, sometimes it doesn't but

 

no. You still have plenty left over, this only becomes a problem with SLI configurations.

so the gtx 1080 will not be bottlenecked in any way by a m.2?

[Link8451]

2 minutes ago, Mr.Wang said:

so the gtx 1080 will not be bottlenecked in any way by a m.2?

yes that is correct 

[Mr.Wang]

1 minute ago, youtuber1744 said:

yes that is correct 

great to hear, but how come? i mean how does it work?

[frostburg]

Just now, Mr.Wang said:

great to hear, but how come? i mean how does it work?

You have 20 lanes, the m.2 uses at most 4 (if the motherboard doesn't help - it could depending on the specific model).

[Mr.Wang]

Just now, frostburg said:

You have 20 lanes, the m.2 uses at most 4 (if the motherboard doesn't help - it could depending on the specific model).

if i use the m.2 connector on board (and not a pcie adapter for the m.2) then it will use up and disable some sata ports, amiright?

[Glenwing]

3 minutes ago, Mr.Wang said:

great to hear, but how come? i mean how does it work?

Graphics cards perform the same in games at PCIe 3.0 ×8 and ×16. You don't need full 16 lanes.

 

Also most motherboards have M.2 slots set up to use the auxiliary lanes from the chipset, leaving the CPU's main 16 lanes alone.

[johnt]

1 minute ago, Glenwing said:

Graphics cards perform the same in games at PCIe 3.0 ×8 and ×16. You don't need full 16 lanes.

 

Also most motherboards have M.2 slots set up to use the auxiliary lanes from the chipset, leaving the CPU's main 16 lanes alone.

Correct for the z170 platform.