Hi,
I have couple of questions and it will be nice if someone can answer.

Does anybody use PCI-e Express 1X to 3 Port 1X card?
Does it has any effect on mining speed?
How many gpu we can have on Win10? Win7 and Win8 have limitation on number of gpu.
Does Claymore miner or OpenCL have some limitation on nuber of gpu?

BR

When i'm mining on flypool eu the 290x shows in my rigs 320h/s and about 1,5% rejects but also like the others on the forum i get less profit then i should need to have on day payouts. Now i was trying to go to dwarfpool eu but when the miner begins i get 70% reject and on supernova eu i see in the miner that i get 30% rejects   i was mining 10minutes each. Do i need to undervolt my card to mine on dwarfpool or supernova? I'm now back on flypool for the moment.

Where is my mistake? Dwarfpool does not start. Thank you
ZecMiner64.exe -zpool zec-eu1.dwarfpool.com:3333 -zwal t1RGQ4QhSqMMDNF8RaZRm5AHvrP7zyFZD6v.myrignumber1 -zpsw х -i 8