Foxconn H77M-S User manual - Page 18

CAUTION 2-2 Install the Memory ! Read the following guidelines before you begin to install the memory : ■ Make sure that the motherboard supports the memory. It is recommended that memory of the same capacity, brand, speed, and chips be used. ■ Always turn off the computer and unplug the power cord from the power outlet before installing the memory to prevent hardware damage. ■ Memory modules have a foolproof design. A memory module can be installed in only one direction. If you are unable to insert the memory, switch the direction. 2 Dual Channel Memory Configuration This motherboard provides Four DDR3 memory sockets and supports Dual Channel Technology. When memory is installed, the BIOS will automatically check the memory in your system. Four DDR3 memory sockets are divided into two channels : Channel 0 : DIMM1 , DIMM2 Channel 1 : DIMM3 , DIMM4 The combinations of DIMM modules are : Single Channel DIMM1 DS/SS DIMM2 - DIMM3 - DIMM4 - Single Channel DS/SS DS/SS - Single Channel - DS/SS - Single Channel - - DS/SS Single Channel - - - Single Channel - - DS/SS Dual Channel DS/SS - DS/SS Dual Channel DS/SS - - Dual Channel - DS/SS DS/SS Dual Channel - DS/SS - Dual Channel DS/SS DS/SS DS/SS (DS : Double Side, SS : Single Side, - : No Memory) DS/SS DS/SS DS/SS DS/SS DS/SS ! For this motherboard, DIMM(1,2), DIMM(3,4) are two pairs of channels. For Lynnfield CPU, in each pair of DIMM channel, you need to install blue DIMM first, then install white DIMM the second. White DIMM can not function if no blue DIMM is installed. (Please refer to the silkscreen next to the DIMM slots to identify the sequence of DIMM(1,2, 3, 4) on the motherboard.) 11 11 CAUTION