Would a PCIe 3.0 GPU work with a PCIe 1.0 slot?

[jjgrosk008]

Hello,
I've been thinking about building a mining machine but don't want to invest into the full thing quite yet. So I found an alternate. I have a m2n68-la motherboard and various other items from an old computer. Would it be possible to use a riser to hook up a PCIe 1.0 to a PCIe 3.0? My guess is I can but it won't be as fast. Just want to confirm with the community!

GPU: https://www.amazon.com/gp/aw/d/B01J3TZJOA#immersive-view_1478002036545

 

[grimfox]

Any CPU running on a mobo with PCIe 1.0 would likely be a substantial bottleneck to a RX-480. So the basic premise is correct the GPU itself should run. However, whether the CPU or the bus itself is the limiting factor is hard to gauge.

edit. bottlenecking guide seems to indicate that the cpu may not be an issue if running a 8k or 9k fx cpu. http://www.tomshardware.com/forum/id-3192807/ultimate-bottlenecking-guide.html#18759269

 

[strizlow800]

In my opinion, if it has backwards compatibility it will run, you won't get optimal performance from it. Correct me if I'm wrong...

 

[Virtual_Singularity]

Possible? Would kind of be curious to see how that worked out tbh. Recommendable, or even practical? No sir. I'd say get an older, far cheaper card, used even if possible, designed for use with pcie 1.0, and maybe wait til you are willing to invest in the mining solution you might have in mind, before considering buying that 480.

 

[Dark Lord of Tech]

The transfer speeds are significantly slower at PCIE 1.1

Summary of PCI Express Interface Parameters:

Base Clock Speed: PCIe 3.0 = 8.0GHz, PCIe 2.0 = 5.0GHz, PCIe 1.1 = 2.5GHz
Data Rate: PCIe 3.0 = 1000MB/s, PCIe 2.0 = 500MB/s, PCIe 1.1 = 250MB/s
Total Bandwidth: (x16 link): PCIe 3.0 = 32GB/s, PCIe 2.0 = 16GB/s, PCIe 1.1 = 8GB/s
Data Transfer Rate: PCIe 3.0 = 8.0GT/s, PCIe 2.0= 5.0GT/s, PCIe 1.1 = 2.5GT/s

http://www.trentonsystems.com/applications/pci-express-interface/
For full explanation go here ^