CPU Lane Compatability, HELP!

[confusedconfucius]

Hey Guys, first time posting here so forgive me if this is in the wrong section or I'm breaking some rules!

Just purchased an Intel i7 4790k, (16 PCI Lanes), going to be running Dual SLI GTX 980's (there goes the 16 lanes) and I have a wireless card that I plug in via a PCI slot on my motherboard. My dilemma that just arrived to me is with my dual 980's taking up all 16 lanes, will this render my wireless card useless? could be a real stupid question, but starting to freak slightly haha

[killchain]

What is your motherboard?

[confusedconfucius]

1. Asus Maximus VII Formula

[techguru]

no...it will work fine

but the 980s might be in the way of the card

[confusedconfucius]

Could you explain how you came to that conclusion that the card will work, just want to know what I overlooked or didn't understand, cheers

[-TesseracT-]

Could you explain how you came to that conclusion that the card will work, just want to know what I overlooked or didn't understand, cheers

Your motherboard has a PLX chip, meaning that it can share the bandwidth of the 16 lanes to other cards. Your GPU's won't get the same bandwidth to the CPU, but it will run almost without any performance decrease.

[confusedconfucius]

Your motherboard has a PLX chip, meaning that it can split the 16 lanes to be able to run more than just 2 8x GPU

 

If Nvidia requires atleast 2 8x slots to run SLI, how does a chip pull an extra one slot out of seemingly no where ( to me anyway) ?

[-TesseracT-]

If Nvidia requires atleast 2 8x slots to run SLI, how does a chip pull an extra one slot out of seemingly no where ( to me anyway) ?

I edited my post. They do offically require 8x but they technically don't need it to be able to operate. Your motherboard therefore gives your GPU's less bandwidth to be able to run additional things.

[confusedconfucius]

I edited my post. They do offically require 8x but they technically don't need it to be able to operate. Your motherboard therefore gives your GPU's less bandwidth to be able to run additional things.

ok thanks mate, hope to this works then haha

[techguru]

btw...a powerline adapter kit would be better if your place has good modern copper wiring

[confusedconfucius]

btw...a powerline adapter kit would be better if your place has good modern copper wiring

we rent, so I cant get any extra cables routed through the house wifi for me

[i_build_nanosuits]

we rent, so I cant get any extra cables routed through the house wifi for me

WIFI cards are using the X1 PCIE slots which are driven by the motherboard chipset itself, not the CPU...therefore they have no impact on the PCIe lanes from your CPU which are used only for your GPU's.

[techguru]

powerline adapter kit would work fine for you then

no need to cut holes in walls then

[Griffscavern]

powerline adapter kit would work fine for you then

no need to cut holes in walls then

I may have been misinformed, but I was told that the powerline adapters have to be plugged in to a line that is on the same circuit in order for it to work correctly. In other words the wiring needs to be controlled by the same circuit breaker. If I was informed incorrectly that would be nice to know. If not, then the op would need to be plugged in to a socket in the same line.

[Griffscavern]

Just found this. So it looks as though I was informed correctly.

http://www.google.com/url?sa=t&rct=j&q=do+powerline+adapters+have+to+be+plugged+in+to+the+same+circuit&source=web&cd=1&cad=rja&uact=8&ved=0CBwQFjAA&url=http%3A%2F%2Fblog.dlink.com%2Fpowerline-buying-guide%2F&ei=XX0dVc3xC9i0oQSHzIGoDA&usg=AFQjCNGEkaOIh2k2q12sGG8OvT8RhjfeNw&sig2=kIQkFxxp4kIo9QpDyuo7_Q

Look in the comments at the end of the thread.

[FruitBasketSilex]

Could you explain how you came to that conclusion that the card will work, just want to know what I overlooked or didn't understand, cheers

The PCI lanes are controlled by the chip set, not your processor. If I had 16 lanes on my CPU, and let's say to x16 slots, and 15 x1 slots, I could fill up both x16 slots, and all of the x1 slots without affecting the bandwidth of either. The PCI lanes are controlled by the chip set, not the CPU.