That's a great checklist. I'm going through it now.
One question about my power connector.
My port on the motherboard looks like this that accepts 8.
but the closest thing to a cable/plug from my power supply looks like this with 6 plugs and two extra on the same cable.
I assume I should use one of the 6's and the 2 to fill up the 8 spots?
This is what I had already been doing. However one thing I hadn't done before was to use the standoffs under the motherboard.
I'm using those now. I'll keep going and post more questions/photos/results as I make progress. Hope not using the standoffs didn't ruin my motherboard.
Suggestions, feedback or insults always accepted!