How can i mining Ethereum or ETC mining with 4gb GPU card?

As you know, ETH and ETC mining cannot be done because the size of the DAG file exceeds 4gb. Is there any other method for this? Can you combine two 4gb graphics cards and display as 8gb or how can VRAM be virtually upgraded? What are your suggestions? It doesn't matter if it makes sense. Let's brainstorm

No you cannot combine 2 gpu to increase RAM only their hashrate. I wasn't aware about the 4gb problem but i run 11gb gtx 1080ti.
I would try Vram for sure!

Well it will help to have a fast computer but you should also consider other currencies to mine.