PCIe 3.0 x2 limitations/penalty?

[bluestang]

Anyone remember project limitations or penalty when running a GPU on PCIe 3.0 x2 slot?

I got a MB that has 2x full size PCIE 3.0 slots, but 1 is x16 and the other is x2...just wonder what bandwidth limitations that it will make for projects like WCG OPNG, E@H, PG PPS_Sieve, MOO, Ami, etc. and runtime/PPD penalty?

TIA

 

[motqalden]

Wcg opn ok, amicable ok, pg ww ok not sure about the rest of pg but prob ok, e@h i think maybe not ok . Moo cant remember but i think ok.

 

[motqalden]

Milkyway ok

 

[bluestang]

Thanks. I remember when some miners were have issue on some projects during the Pentathlon years ago with those on x1, but don't recall x2.

 

[motqalden]

And i will say my observations are really for x1 but i think x2 is only gonna slightly improve einstein

 

[Ducrider748]

Check your mother board .If both slots are being used make sure they don't go to 8x on each slot. Most mother boards do. Or it may go to a 4x slot if used. 2x works for F@H but works better at 4x, A hit on ppd is better than not making any ppd.

 

[bluestang]

Check your mother board .If both slots are being used make sure they don't go to 8x on each slot. Most mother boards do. Or it may go to a 4x slot if used. 2x works for F@H but works better at 4x, A hit on ppd is better than not making any ppd.

Thanks for the info, but I did check my MB manual and that is why I posted exactly what I did in the OP.