3 bits my satellite X205-SLi1 l change a new motherboard and now have one bit low and two more high

I think when the tree beeps is on ..the blame is on the video card ..so unless you changed the video card as well you just made a wrong move ..The part that should be changed is either teh video card or the ram memory ..cause they are the only one that causes beeping when something is wrong ..So check the card it may be just not plugged well ..and the ram memory as well ..Unplug them ..and use them one by one and boot up and see how it behaves..Even if it is not enough ram in it for to run the operation system ..it should at least show the devices and the logo screen ..