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Two Capture cards

Posted: Tue May 03, 2022 18:36
by kapil8589
Hi,
I have a system which has a quad decklink 4k hdmi card and a quad magewell sdi card. Resolume 7.10 works perfectly well, all 8 inputs working well.
I am building a second system now and was thinking of using two Blackmagic Decklink quad cards, one being the quad hdmi and the other a quad sdi, rather than one decklink and the other a Magewell like in the other system.
Will this work? Would all 8 inputs work or would there be an issue since both the cards are from the same manufacturer?

Re: Two Capture cards

Posted: Mon May 09, 2022 00:30
by isprod.se
I use 2x quad 2 from bmd in several machines.

as input there seem to be no difference.
as outputs the first card has about 100-120ms delay compared to gpu + second card additional 100-120ms (200-240 compared to gpu)

Re: Two Capture cards

Posted: Mon May 09, 2022 11:15
by kapil8589
Oh okay. Thank you for the information. That was helpful

Re: Two Capture cards

Posted: Mon May 16, 2022 17:10
by kapil8589
Just wanted to clarify, the first capture card would mean a Pcie slot 2, and the second one would be the third pcie slot, having put the graphic card on the first one. Is that correct? It is completely hardware based and there is no way it can be swapped based on the drivers, say you install driver for the throd slotted capture card before the second one, it wouldn't make a difference?