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As for your problem, are you saying you were running your gpu with only 8 lanes (as opposed to usual 16) in a pcie 3 slot? ( or possibly even a 4 lane slot?) And thats a game optimization problem?
My board has 2 PCI x16 ports for video cards that in theory are identical, and they look the same, moving the board from one port to another solved all the errors.
With other games I had no problems and did not notice any improvement in other games.
Anyway, at least it solved the issue
Okay first of all... the fact that they are x16 doesn't matter when its 8 lane card. The slot closest to the cpu uses cpu pcie lanes, the slots below use chipset lanes. Thats probably the reason. Or part of it at least.
What mobo do you have?
Why do you want to start a fight, keep the sarcasm, I don't want to fight, I posted it to help, the game has problems and we are all trying to solve them, if it helps you try it, if it bothers you in any way sorry but this post is not an attack for you, if it can help someone else, why does it bother you? have a nice day-.
None of the modern boards have 2 PCI x16 ports that are "identical". In modern architectures, on the consumer side, the CPU only has 16 lanes available for the PCIE slots, and so only 1 slot is directly connected to the CPU with all 16 lanes, usually the one closest to the CPU.
If you have 2 slots connected to the CPU, using the 2nd, lower slot will usually result in bifurcation of lanes to 8x/8x automatically. The 2nd 16x slot is only 16x mechanically when it is present. It is not actually 16x.
Of course this only matters very little, unless you're connecting to a non-CPU connected slot.
The amount of lanes shouldn't be the problem, since its a 8 lane card anyway. The problem is 1) the top slot is cpu lanes and the bottom is chipset lanes 2) And this is even worse than I thought, the top slot is pcie 3 and lower slot is pcie 2.
Yeah its even worse than I thought, your top slot is pcie 3, your bottom slot is pcie 2. Ouch. Even in the top slot you are losing a significant amount of your cards performance. Thats too bad.
Anyway, sorry if I came off rude that wasn't my intention. But even your top slot is pcie 3, which means your card loses about 30% of its performance. The bottom slot it would lose even more, 60%? Possibly even more. Every generation doubles bandwidth so every generation back halves it. This card is meant for pcie 4 connections and you were running in on pcie 2. That definitely isn't an optimization problem.
Nevertheless, I'm glad the pcie 3 connection is at least enough for you to get some decent performance.
Well he was technically right about that, they are both 16x slots ( not that it matters on a 8 lane card). But the top slot is pcie 3 and the bottom slot is pcie 2. So that I'm thinking is the biggest factor. Also possibly a factor is the bottom one being on chipset lanes.
Thanks for the answer, you gave me a lot of information.