Quote from: BTC22 on December 31, 2017, 03:00:09 AM

Looking to get a rig. Thinking 3 or 4 1080 Ti cards to start for now...unless AMD is better for ETH? Either way, let me know. I have a question about the CPU and motherboard. For the CPU, should I be looking at just Celeron or i3 maybe? I don't know to much about motherboards, but came across this one ASRock H110 Pro BTC+. Overkill or should I go with something else? Thanks.

The 1080ti is usually not the best choice if you wish to mine Ethereum. However, you could mine an equihash coin (such as Zcash) and exchange it for ETH. If you can get your hands on a Vega 56 or 64 at a reasonable price, those do well mining cryptonight coins (such as Electroneum and Monero).
If you are set on mining ETH, the RX 580/570/480/470 cards are typical choices. The GTX 1080ti will outperform them, but the performance difference on ETH is hardly worth the additional costs.

Pentium processors are preferred for dedicated mining rigs. Celerons *usually* do fine, but some mining software may require more CPU use than others. An i3 will do fine, but isn't worth paying much extra for, unless you have a plan to use it outside of GPU mining alone.

For a 4-card rig, the H110 Pro BTC+ will work, but is probably overkill. The main reason to consider it would be to prepare for future expansion, or if non-mining ATX motherboards with 4+ PCIe slots (there are plenty) are no cheaper.