Question about usability of PCI-E splitters

duskspeed · Nov 9, 2018

Hey guys,

Quick question regarding PCI-E splitters, is there anything stopping someone from using a PCI-E splitter to run a SLI/Crossfire setup on a single PCI-E Slot on a motherboard and If so is it dependent on lanes/max throughput of the slot on a given motherboard?

Would the x16 slot run the two cards at x8?

Would there be any other issues like hardware detection and the like?

Thanks

kanewolf · Nov 9, 2018

Power would be an issue. Each card can draw 75W from the PCIe slot. Your splitter would have to have supplemental power.

BUT, SLI/Crossfire has become less supported by by games and usually doesn't provide as much improvement as hoped for.

duskspeed · Nov 9, 2018

kanewolf :

Thanks for the information, I was more or less just curious if it was possible

photonboy · Nov 9, 2018

Other issues aside, how would you even physically mount cards like this?

They wouldn't line up with the back of the case for one thing and how would you secure the card in place?

Bandwidth is dedicated to the slot so would need to be shared. The top x16 slot is usually directly connected to the CPU so yes you'd get basically HALF the performance per card.

Also, I'm not sure how well this would work for the main card even if power etc was sorted out. I suspect that the motherboard won't like PCIe bifurcation with the primary video device and might not bootup or might not support one of the cards. Hard to say.

Search

Question about usability of PCI-E splitters

duskspeed

kanewolf

kanewolf

Titan

duskspeed

photonboy

Titan

TRENDING THREADS

Latest posts

Moderators online

Share this page