Hmm I may need to look into one of those, been going without a backplate ever since swapping over from s939. I just use long #6 screws mounted from the backside, with jam nuts holding them securely to the board. Plastic/fiber washers keep the metal from touching the mobo. This leaves some long studs sticking out from the mobo that I can set the block onto and then put springs and wing nuts on to tighten it down with.