Question

Can I plug PCIe x4 to PCIe x16?

Answer 1

4 in 1 PCIe risers are a fantastic way to get some additional PCIe slots in your motherboard. Much like standard PCIe risers, they allow the connection of X16 PCIe GPUs to plug into an X1 PCIe slot. Additionally, they allow for the card to \u201crise above\u201d the motherboard making room for the cards in the first place.Dec 15, 2019

4 in 1 PCIe Risers Tested and Explained - The Geek Pub

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Search for: What is PCIe riser?

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The riser probably does affect performance a bit. 3700 vs 3800 is only like 2%, so in the grand scheme of gaming if you were getting 90FPS in a game before, with the riser you'd get 2% less, so 1.8 less FPS, or 88.2 FPS. No real difference you'd see.Sep 21, 2017

Riser card Lower Performance? | Tom's Hardware Forum

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Search for: Do PCIe risers affect performance?

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Yes, a PCIe x4 card will function in a PCIe x16 slot. The slot will simply use 4 of the 16 lanes available, and the card will work properly.