Why? Brand new 6 card setup for ~$165:

ASRock H81 PRO BTC R2.0 - $80

https://www.newegg.com/Product/Product.aspx?Item=N82E16813157724

Intel Celeron G1840 Processor - BX80646G1840 - $54

https://www.amazon.com/Intel-Celeron-G1840-Processor-BX80646G1840/dp/B00J2LIE9C

CORSAIR Vengeance 4GB 240-Pin DDR3 SDRAM DDR3 1600 - $33

https://www.newegg.com/Product/Product.aspx?Item=N82E16820145346