[moltuae]

Originally Posted by ainarssems

So the RX 480 is not available any more with RX 580 taking it's place. Would it make any difference to mining whether it's 4GB or 8GB version? Also can you recommend motherboard&CPU on how much RAM would it need?

You'll read a lot of info online that states the 8GB cards are better to mine with. We found that's not strictly true. It's actually the memory speed that makes the difference, it just happens to be that most of the 8GB cards have faster memory. The difference isn't massive either way. I think we were getting something like 25MH/s for the faster cards and 21MH/s for the slower (and cheaper) cards.

We've used various motherboards. You can really use any that's suitable (ie has enough PCIe slots). There are special 'BTC' motherboards that have 6 or more PCIe slots (there's even a new one due out soon with 13 PCIe slots). Initially at least, I'd recommend sticking to building rigs with no more than 3 or 4 cards. Not only are suitable motherboards for smaller rigs cheaper and more readily available but you'll have far less headaches getting smaller rigs working. With larger rigs you introduce problems like finding a suitably powerful PSU and you'll find that some GPU drivers have issues when running more than 4 cards. For smaller rigs 8GB of memory is sufficient, while larger rigs seem to run better with 16GB.

Here's what we have in one of our smaller (3 card) rigs that runs very stable:

Operating System
Windows 10 Pro 64-bit
CPU
Intel Celeron G1840 @ 2.80GHz 25 °C
Haswell 22nm Technology
RAM
8.00GB Dual-Channel DDR3 @ 699MHz (10-10-10-25)
Motherboard
ASUSTeK COMPUTER INC. H81M-PLUS (SOCKET 1150) 28 °C
Graphics
EMULATOR (1920x1080@59Hz)
4096MB ATI Radeon RX 480 Graphics (Gigabyte) 53 °C
4096MB ATI Radeon RX 480 Graphics (Gigabyte) 56 °C
4096MB ATI Radeon RX 480 Graphics (Gigabyte) 55 °C
CrossFire Disabled
Storage
223GB Western Digital WDC WDS240G1G0A-00SS50 (SSD) 30 °C
Optical Drives
No optical disk drives detected
Audio
AMD High Definition Audio Device