You can't mine with RAM but you can mine with SSD (but not Bitcoin).
You can only mine altcoin with SSD but the earnings are too small(Is not worth it)

If you want to mine with bitcoin you need an ASIC hardware to be able to mine bitcoins.

One of the samples is Antminer s9 and s15. You can check these thread below to learn about Antminer s9 as a sample that can mine Bitcoins and to see what it looks like.
- https://bitcointalk.org/index.php?topic=2676763.0
- https://bitcointalk.org/index.php?topic=5105380

Then read this "First time/Small miner reference for getting started."