Excuse my bad english, I'm from europe -
I wanted to do a cheap build, but I don't know if it would work so here are the parts (I will take used hardware) which I found to be the cheapest:
Mobo: no name (I think?) and a bit strange, so here is the link
CPU: Intel Xeon X5650
RAM: HP 4GB DDR3 RAM 2Rx4 PC3-10600R-9 REG Dimm (decided to take these bc 3x 2GB probably won't be enough)
Power Supply: Tacens Eco Smart APII600
Heatsink: COOLER MASTER RR-212X-20PM-R1 (or recommendations for overclocking)
budget: wanted to keep it below roughly 200€ (gpu excluded)
I would be happy to know if this would even work and which gpu I can use maximum in this build without having mobo or cpu as bottleneck. I want to wait until the gpu prices drop when everybody is selling his mining rig, so I will use some 5€ gpu until I have money to upgrade.