[Trisquel-users] pc mainboard low priced which one do you suggest?

[svhaab]

My pc mainboard stopped working. Likely the power supply too. It was an amd  
athlon ii x2 250. What mainboard and cpu should I buy, if I want highest  
level of free software and similar performance? I cannot get a mainboard  
without uefi etc? Can you get mainboards that are not new but unused? Build  
in graphic card? Required power supply not more than 500w. Thanks.