[SOLVED] Can I use PCIe 3.0 card (GTX950) w/ PCIe 2.0 MB?

[hobkirk]

I want to use my GTX 950 card in my existing PC

• but it will not fit. Then I learned about PCIe extenders.
• Now I find my existing PC has PCIe 2.0 and my MSI card is showing PCIe 3.0.

Will this work?

• Would the card work but with the transfer throttled from 8 GT/s to 5, and would the frequency adapt (5 GHz vs 8)
• And if so, would these limits have a discernible effect on performance? I would like to try something like iRacing with a 2560 x 1440 monitor.
• Then I would need a 6 prong power supply - connect to a second PS? (using just the one plug)

TECH INFO
Dell 7010, mfg 2/2014, i7 3770. small form factor, Win 10 Pro
Dell Owner's Manual info
Bus Type: > > > PCIe gen2, gen3 (x16), USB 2.0, and USB 3.0
Bus Speed: > > PCI Express:
•x1-slot bidirectional speed – 500 MB/s
•x16-slot bidirectional speed – 16 GB/s

 

[Newtonius]

It'll work fine, the only difference is there might be a little more VRAM usage but overall you will not notice any performance dips. I used a GTX 780 on a 2.0 slot long ago and a 780 is more powerful than a 950. I had no issues in performance compared to when I used it on a 3.0 later on.

 

[hobkirk]

Damn, talk about a response that is 100% on point.
And, as an aside, that's a VERY impressive personal rig!

Thanks