I have a "AuthenticAMD AMD FX(tm)-8350 Eight-Core Processor [Family 21 Model 2 Stepping 0]
(8 processors)" cpu running with an Nvidia 1070 and an Nvidia 970 under windows-7 (almost current nvidia drivers).

The 970 is in the PCI-E x16 slot and the 1070 is in the PCI-E x8 slot. is it worth switching the slot locations ... for the sake of running SETI@HOME?

Ed F

No, you can leave them where they are.

Since the Seti apps has be optimized, the PCIe number is not a significant factor in processing the data like it is in other projects.

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Your hidden computers make things difficult to say for 100% sure, but as Zalster said it's not likely to be an issue.

If you're running your GTX 1070 in an older system in a *1 or *4 slot & running the SoG application, then yes it would be better to run it in a faster PCIe slot. The SoG application does make more use of the CPU, and that requires the transfer of data between it & the GPU.
In my old C2D system, with 2 GTX750Tis, running the SoG application and 1WU at a time resulted in a PCIe Bus load of around 33%. Running 2 WUs at a time using CUDA50 the load is effectively 0%

But on any board that supports PCIe v2 and upwards, a *4 slot would have no impact on even a GTX1080 when running the current SoG application.

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Grant
Darwin NT