A little question about PCI-E lines

[Vectorized]

Hi guys.
I have an ASUS Maximus VI Hero motherboard.

I have a GTX 780 Ti GPU in the first PCI-E x16 slot, and a PCI-E soundcard (ASUS Xonar Phoebus) plugged into the third PCI-E x1 slot (the bottom one).

What I was asking to myself, is:
is the soundcard plugged into the PCI-E x1 slot subtracting lines to the x16 slots?

And so on: is the GPU still working in x16 mode, despite the soundcard into the bottom x1 slot?

Thank you.

 

[Chayan4400]

Hi guys.
I have an ASUS Maximus VI Hero motherboard.

I have a GTX 780 Ti GPU in the first PCI-E x16 slot, and a PCI-E soundcard (ASUS Xonar Phoebus) plugged into the third PCI-E x1 slot (the bottom one).

What I was asking to myself, is:
is the soundcard plugged into the PCI-E x1 slot subtracting lines to the x16 slots?

And so on: is the GPU still working in x16 mode, despite the soundcard into the bottom x1 slot?

Thank you.

As long as your CPU has supports 17 PCI-E lanes or more, both cards will run at their full capacity with no problems, and since you have a 780 Ti, it is almost certain that your CPU has support for 17 or more PCI-E lanes. Just to be sure, post the model of the CPU you have and I'll check and let you know if it does indeed have enough PCI-E lanes.

 

[Vectorized]

As long as your CPU has supports 17 PCI-E lanes or more, both cards will run at their full capacity with no problems, and since you have a 780 Ti, it is almost certain that your CPU has support for 17 or more PCI-E lanes. Just to be sure, post the model of the CPU you have and I'll check and let you know if it does indeed have enough PCI-E lanes.

Thanks.
I have an Intel Core i7-4770k.

On Intel official website, it says "Max # of PCI Express Lanes: 16".

Check it here:
http://ark.intel.com/products/75123/Intel-Core-i7-4770K-Processor-8M-Cache-up-to-3_90-GHz

So I'm running my GPU at x8 mode, I guess, because it didn't support more than 16 lines... is this right?
(8 to GPU and 1 to soundcard, because it should not be able to give the whole 16 lines to GPU, cause of the one required by soundcard...)

 

[Chayan4400]

As long as your CPU has supports 17 PCI-E lanes or more, both cards will run at their full capacity with no problems, and since you have a 780 Ti, it is almost certain that your CPU has support for 17 or more PCI-E lanes. Just to be sure, post the model of the CPU you have and I'll check and let you know if it does indeed have enough PCI-E lanes.

Thanks.
I have an Intel Core i7-4770k.

On Intel official website, it says "Max # of PCI Express Lanes: 16".

Check it here:
http://ark.intel.com/products/75123/Intel-Core-i7-4770K-Processor-8M-Cache-up-to-3_90-GHz

So I'm running my GPU at x8 mode, I guess, because it didn't support more than 16 lines... is this right?
(8 to GPU and 1 to soundcard, because it should not be able to give the whole 16 lines to GPU, cause of the one required by soundcard...)

Since the Maximus VI Hero does not have a PLX chip, yes, the graphics card is running at 8x, however the performance of the card shouldn't drop at all, and at the most, maybe a max of 5-8%, as long as you are using the PCI-E Gen. 3.0 slots (The Red ones.). To test this, benchmark the system with and without the the sound card installed and compare the difference in ratings, if any.

 

[Vectorized]

As long as your CPU has supports 17 PCI-E lanes or more, both cards will run at their full capacity with no problems, and since you have a 780 Ti, it is almost certain that your CPU has support for 17 or more PCI-E lanes. Just to be sure, post the model of the CPU you have and I'll check and let you know if it does indeed have enough PCI-E lanes.

Thanks.
I have an Intel Core i7-4770k.

On Intel official website, it says "Max # of PCI Express Lanes: 16".

Check it here:
http://ark.intel.com/products/75123/Intel-Core-i7-4770K-Processor-8M-Cache-up-to-3_90-GHz

So I'm running my GPU at x8 mode, I guess, because it didn't support more than 16 lines... is this right?
(8 to GPU and 1 to soundcard, because it should not be able to give the whole 16 lines to GPU, cause of the one required by soundcard...)

Since the Maximus VI Hero does not have a PLX chip, yes, the graphics card is running at 8x, however the performance of the card shouldn't drop at all, and at the most, maybe a max of 5-8%, as long as you are using the PCI-E Gen. 3.0 slots (The Red ones.). To test this, benchmark the system with and without the the sound card installed and compare the difference in ratings, if any.

Thank you.

Anyway, when I launch GPU-Z with its render test, the software says that the current speed of the GPU PCI-E slot is x16.

Just look at this image, I took a screenshot:

http://s8.postimg.org/uz3d6g179/gpuz_PCIE.jpg

Why GPU-Z says this? Shouldn't be x8?

 

[Chayan4400]

As long as your CPU has supports 17 PCI-E lanes or more, both cards will run at their full capacity with no problems, and since you have a 780 Ti, it is almost certain that your CPU has support for 17 or more PCI-E lanes. Just to be sure, post the model of the CPU you have and I'll check and let you know if it does indeed have enough PCI-E lanes.

Thanks.
I have an Intel Core i7-4770k.

On Intel official website, it says "Max # of PCI Express Lanes: 16".

Check it here:
http://ark.intel.com/products/75123/Intel-Core-i7-4770K-Processor-8M-Cache-up-to-3_90-GHz

So I'm running my GPU at x8 mode, I guess, because it didn't support more than 16 lines... is this right?
(8 to GPU and 1 to soundcard, because it should not be able to give the whole 16 lines to GPU, cause of the one required by soundcard...)

Since the Maximus VI Hero does not have a PLX chip, yes, the graphics card is running at 8x, however the performance of the card shouldn't drop at all, and at the most, maybe a max of 5-8%, as long as you are using the PCI-E Gen. 3.0 slots (The Red ones.). To test this, benchmark the system with and without the the sound card installed and compare the difference in ratings, if any.

Thank you.

Anyway, when I launch GPU-Z with its render test, the software says that the current speed of the GPU PCI-E slot is x16.

Just look at this image, I took a screenshot:

http://s8.postimg.org/uz3d6g179/gpuz_PCIE.jpg

Why GPU-Z says this? Shouldn't be x8?

Hmmmm.. I'm not completely sure, maybe the motherboard does have some kind of PLX chip, and so is utilizing all 16 lanes for the GPU plus the one lane for the soundcard? Bottomline is you'll have little to no performance hit even if it is running at 8x, so there is no need to worry 😀.

 

[Vectorized]

As long as your CPU has supports 17 PCI-E lanes or more, both cards will run at their full capacity with no problems, and since you have a 780 Ti, it is almost certain that your CPU has support for 17 or more PCI-E lanes. Just to be sure, post the model of the CPU you have and I'll check and let you know if it does indeed have enough PCI-E lanes.

Thanks.
I have an Intel Core i7-4770k.

On Intel official website, it says "Max # of PCI Express Lanes: 16".

Check it here:
http://ark.intel.com/products/75123/Intel-Core-i7-4770K-Processor-8M-Cache-up-to-3_90-GHz

So I'm running my GPU at x8 mode, I guess, because it didn't support more than 16 lines... is this right?
(8 to GPU and 1 to soundcard, because it should not be able to give the whole 16 lines to GPU, cause of the one required by soundcard...)

Since the Maximus VI Hero does not have a PLX chip, yes, the graphics card is running at 8x, however the performance of the card shouldn't drop at all, and at the most, maybe a max of 5-8%, as long as you are using the PCI-E Gen. 3.0 slots (The Red ones.). To test this, benchmark the system with and without the the sound card installed and compare the difference in ratings, if any.

Thank you.

Anyway, when I launch GPU-Z with its render test, the software says that the current speed of the GPU PCI-E slot is x16.

Just look at this image, I took a screenshot:

http://s8.postimg.org/uz3d6g179/gpuz_PCIE.jpg

Why GPU-Z says this? Shouldn't be x8?

Hmmmm.. I'm not completely sure, maybe the motherboard does have some kind of PLX chip, and so is utilizing all 16 lanes for the GPU plus the one lane for the soundcard? Bottomline is you'll have little to no performance hit even if it is running at 8x, so there is no need to worry 😀.

Yes, performance will eventually not descrease too much, but I just want to understand...

Maybe, don't the x1 slots steal a line? Don't know...