Which DIMM slots are the dual channel pairs on the 9NPA+ mobo? The manual states to put DIMMs in slots of the same color such as DIMM1 and DIMM3. But on the actual mobo DIMM1 and DIMM3 are different colors. DIMM1 and DIMM2 are colored alike and DIMM3 and DIMM4 are colored alike..... So, which slots to use for dual channel?