Nvidia GeForce GTX745

[LadyArchitect]

Hi,
my motherboard supports PCI-E 2.0.
I would like to find out if a PCI-e 3.0 graphics card is going to work on my PC (which is Dell Precision Workstation T3500)?
I am looking at getting this one:
http://accessories.euro.dell.com/sna/productdetail.aspx?c=uk&l=en&s=dhs&cs=ukdhs1&sku=490-BCOQ
or this one:
https://www.amazon.co.uk/PNY-Graphics-NVIDIA-QUADRO-K2200/dp/B00MO4RESG
or similar.
Many thanks in advance for any help.

 

[Petrossa]

There's no reason for either of those cards not to work in the Precision Workstation.
The fact that the system only support PCIe 2.0 shouldn't be a limiting factor at all.
Just check that your PSU has enough power, that is all.

 

[raisonjohn]

Yes, both are completely backwards-compatible (just like using USB3.0 in a USB2.0 or USB2.0 in a USB3.0). So, yes, you can plug in a PCIe3.0 card in a PCIe2.0 slot or a vice-versa. Of course, it will run in PCIe2.0 (at 5Gb/s instead of 8Gb/s) only. But you can't really tell a difference in performance as PCIe3.0 can't really be maxed out by such video cards at that speed.