The ripjawX has faster Latency and is optimized for Sandy Bridge.
Thanks for that.
I just had another thought. Could height of RipJawX be a problem on this mATX board with the CPU heatsink/fan? I'm looking at Arctic Cooling Freezer 7 Pro Rev 2 or Arctic Cooling Freezer 13 Pro Extreme.
Heat's not going to be a problem, I just want it to be silent. Can't find full details of dimensions/shape of all components to work it out.