so i just got a new asus motherboard. it has 9 holes in which to mount to the inside of the case. there are six spots on the inside of the case that raise up to meet with 6 of the holes on the board. 3 of the hols require standoffs. The standoffs that i have aren't quite exactly the right size in that when i screw it down it cause the board to flex ever so slightly. my question is can i just use the six screws the secure the board down and just leave the other others alone? does not using a screw in one spot perhaps not ground a certain section of the board? the configuration of the screws i used is below.
Your mother board manual should tell you what stand offs are necessary.
Typically, all standoff's are required to provide the 1) the adequate motherboard support and 2) prevention of a possible short. Referring to your motherboard manual will provide what is needed for your board. A slight "flex" is acceptable though.
Also, check to make sure you haven't over tightened the standoff's to causing it to be a little short.