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GPU pcie 3.0 16x - running 4x instead 16x

bredao
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Hey, what's up?
I was looking for input lag trouble in win 10 and found a weird information: my VGA is running at 4x instead 16x. All my configs are setup to use maximum performance. Can you help me? 
Here is my config:
I5 6600
GA-Z170M-D3H DDR4
HyperX DDR4 8gb 2133mhz
GTX 750 TI OC EVGA 2GB

Ryzen 5 5600x -- 2x8 Kingston Hyperx fury 8gb 2133mhz/2400Mhz -- Sandisk SSD Ultra II 120gb/240gb -- PSU EVGA 600b B1 -- Case Cougar Gemini S -- Mobo ASROCK B450M Steel Legend

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Yes my friend. 

Ryzen 5 5600x -- 2x8 Kingston Hyperx fury 8gb 2133mhz/2400Mhz -- Sandisk SSD Ultra II 120gb/240gb -- PSU EVGA 600b B1 -- Case Cougar Gemini S -- Mobo ASROCK B450M Steel Legend

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4 hours ago, M.Yurizaki said:

Were you running any graphically intensive tasks when you found out it was running with fewer lanes?

as I said, my friend discovered that windows 10 is causing lag input. I did some testing and found that my GPU is running on x4 instead of x16.

About your question, I tested to see if it changed, but it didn’t.

6432E97D-E6F4-4048-9648-4F32E22C99BD.jpeg

DFF8F18E-56C7-47ED-92D3-97426EA1285E.jpeg

Ryzen 5 5600x -- 2x8 Kingston Hyperx fury 8gb 2133mhz/2400Mhz -- Sandisk SSD Ultra II 120gb/240gb -- PSU EVGA 600b B1 -- Case Cougar Gemini S -- Mobo ASROCK B450M Steel Legend

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6 hours ago, homeap5 said:

Are you sure that your GPU is plugged into upper pci-e slot?

yeah i agree, check your motherboard manual to be sure 

, your cpu can do 1 x16 slot and also your mother board, so only one slot can be used at a time, 

cause as soon as you use your 1 x16 pcie slot, all your pcie lanes are used up from your cpu,

even though your motherboard can take more, so maybe its like usb and such taking up lanes, or it isnt in the right x16 slot , 

but in anycase a pcie x4 3.0 slot shouldnt have as much lag, or limitation for a 750 ti , i would think  

PC: Alienware 15 R3  Cpu: 7700hq  GPu : 1070 OC   Display: 1080p IPS Gsync panel 60hz  Storage: 970 evo 250 gb / 970 evo plus 500gb

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8 hours ago, bredao said:

my VGA is running at 4x instead 16x.

Have you tested it at 3D Load and not in Idle??

Some switch a bit around...

 

Have you some Settings in the BIOS relating to PCIe??

"Hell is full of good meanings, but Heaven is full of good works"

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3 hours ago, bredao said:

as I said, my friend discovered that windows 10 is causing lag input. I did some testing and found that my GPU is running on x4 instead of x16.

About your question, I tested to see if it changed, but it didn’t.

If it didn't change and it's in the motherboard's " PCIEX16" slot and not the " PCIEX4" slot then that's a problem. However, this shouldn't cause input lag issues since modern GPUs will go down to PCIe 1.1 x16, which bandwidth wise is the equivalent of PCIe 3.0 x4, to save power:

image.png.2dac1e5c405003c43bc959741303fe21.png

 

And every time it does this I don't experience any input lag.

 

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I did a general cleanup on my computer and everything went back to normal. thanks everyone

Ryzen 5 5600x -- 2x8 Kingston Hyperx fury 8gb 2133mhz/2400Mhz -- Sandisk SSD Ultra II 120gb/240gb -- PSU EVGA 600b B1 -- Case Cougar Gemini S -- Mobo ASROCK B450M Steel Legend

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