I’m a big fan of the NH-C12P if you have room for it. The down blowing 140mm fan is great for the DH57DD since the memory voltage regulator tends to get hot (though I suspect some error on the board with reading the temperature.)
Please keep us updated whether the reseating has helped. My full review of the DH57DD will be published soon.
Btw, Do NOT upgrade to the latest BIOS. On many systems the Intel MEI firmware will fail to update and will turn the fans into mini-jet engines.
