If plug a PCI-E x1 Firewire card in will it reduce my GPU bandwidth (ASRock Z77 Pro4)

futurefields

Diamond Member
Jun 2, 2012
6,471
32
91
I want to get this card
http://www.amazon.com/gp/product/B0...82-f600-4071-83a2-04403f02649f&pf_rd_i=284717

So I can run a firewire audio interface on my PC
http://www.amazon.com/Focusrite-Saf..._UL160_SR160,160_&refRID=0WM0ERTRM1Z2WNT459TJ

My question is, since my motherboard has two PCI-X16 ports but doesnt do both at X16 at the same time does that mean there is a chance the GTX970 plugged into my main PCI x16 port will have reduced bandwidth if I do plug that Firewire card into the remaining X16 slot on my motherboard?

There is also an dedicated PCI-e X1 slot located above the GPU which would probably be ideal to use but I'm not sure if there is actually room for the card there...
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
126
1. In single VGA card mode, it is recommended to install a PCI Express
x16 graphics card on PCIE2 slot.
2. In CrossFireXTM mode, please install the PCI Express x16 graphics
cards on PCIE2 and PCIE3 slots. Therefore, PCIE2 will work at x16
bandwidth, while PCIE3 works at x4 bandwidth.

Looks like it's PCIE3 that loses bandwidth, so your 970 will be OK.