PCI-E Bifurcation

Chrizz

Average Stuffer
Jan 23, 2017
74
81
I think I heard one of the chipsets did support it, but I'm not sure which :/
 

Broxin

Cable-Tie Ninja
Jun 16, 2017
188
135
What is bifurcation ? I read one answer on quora but still dont get it.

Splitting up pci-e lanes? For what? To run 10 gpu's for mining on one pci-e port?
 
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3lfk1ng

King of Cable Management
SFFn Staff
Bronze Supporter
Jun 3, 2016
906
1,713
www.reihengaming.com

HeroXLazer

King of Cable Management
Original poster
Sep 11, 2016
707
476
Also, to anyone unaware, I hope these links will help:

Using a quality riser card or PCIe cable to bifurcate a PCIe slot will not impact GPU performance:
https://videocardz.com/review/pci-express-riser-extender-test

Also, dividing a single 16x down to two 8x lanes has zero impact as well (even when comparing PCIe 3.0 to PCIe 2.0):
https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_PCI_Express_Scaling/25.html
Linus also has a good video for PCI-E scaling.
 

aquelito

King of Cable Management
Piccolo PC
Feb 16, 2016
952
1,122
SLI finally working ?

I've been working on a custom case for two bifurcated GPU for quite some time. Hope to achieve something around September.
Minimum I can achieve with liquid cooling (2U height) :