These three have no onboard graphics and SB750, don't know how they are for cold though
Foxconn http://www.newegg.com/Product/Produc...82E16813186149
DFI http://www.newegg.com/Product/Produc...82E16813136057
Asus http://www.newegg.com/Product/Produc...82E16813131339