IT Support W1 London

Hey, I finished my first rig a few hours ago, the one that you see in my sig. It says i7 920 @4ghz, but really that’s what it’s going to be at xP Also, my memory is underclocked from its stock 2000mhz setting right now. What is every single piece of software that I will need, and what will I need to tweak? Will I be able to achieve 2000mhz on the memory while my CPU is oc’d? Is it as simple as increasing CPU voltage and bclk until I reach desired clock? My temps are around 34C stable, with ambient temperature of what feels like between 75 and 80F.

Off-topic:1. There is one standoff that is not in right now, so my mobo is screwed in with 8 screws as opposed to the total of 9 that it should be. Will this have any effect at all?

2. I had to use force to push in the back panel while someone else screwed in the thumbscrews. What effect will this have?