first time PC builder confused about PCI

Dustin Meyer · Sep 22, 2013

ok, so i get that the PCI is used to plug in my GPU, what i dont get is this; i baught an ASUS sabertooth 990fx R2.0 motherboard, and im reading the box and it says it has 4 SLIe 2.0 x 16 slots. now, this motherboard is fairly new and meant to run with wondows 8, SLIe 2.0 x16 however, is a dying tech it seems. so i need to know if a SLI 3.0 x 16 will work on my motherboard, im assuming not which angers me, because i wanted a gaming PC, and if the slots are too old, i essentially just dropped $150 for absolutely nothing.

sorry for the long story, i know people on forums like to keep it short.

Epis · Sep 22, 2013

PCIe is fully backwards compatible. PCIe 3.0 x16 cards will work in PCIe 2.0 x16 slots.

Furthermore, PCIe speeds double every generation. This means a PCIe 3.0 x8 is equal to PCIe 2.0 x16.

Here is an excellent video explaining the basics of PCIe. ~ http://www.youtube.com/watch?v=LSSHuMHbCWo

Dustin Meyer · Sep 22, 2013

Epis :

Oh thank goodness. I was getting pretty worked up about that, you just saved me a lot of time and headaches lol. Now I can safely order a good graphics card. All of the 2.0 ones looked really awful. Thank you for that.

Epis · Sep 22, 2013

Dustin Meyer :

Epis :

Glad I could help. Good luck with your purchase.
Oh thank goodness. I was getting pretty worked up about that, you just saved me a lot of time and headaches lol. Now I can safely order a good graphics card. All of the 2.0 ones looked really awful. Thank you for that.

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first time PC builder confused about PCI

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