Acer Veriton 5800 Veriton 5800/6800/7800 Service Guide (MSI MB) - Page 29

Dual Channel VT x800 series support the Dual Channel Technology. After operating the dual channel technology, the bandwidth of memory bus will add double up to 4GB/s. The mainboard inculdes 4 DIMM slots, and each channel has two DIMM sockets as following: T Channel A : DDR1, DDR3 T Channel B : DDR2 , DDR4 If you want to operate the Dual Channel Technology, please note the following explanations due to the limitation of Intel chipset specifications. Memory Number Description 1 Only one DDR memory module is The Dual Channel Technology can't operate when only one DDR installed ? memory module is installed. 2 Two DDR memory modules are The Dual Channel Technology will operate when two memory installed ( the same memory size and modules are inserted individually into Channel A and B. If you type) ? install two memory modules in the same channel, the Dual Channel Technology will not operate. 3 Three DDR memory modules are Pleae note that the Dual Channel Technology will not operate installed ? when three DDR memory modules are installed; part of them will not be detected. 4 Four DDR memory modules are If you install four memory modules at the same time, the Dual installed ? Channel Technology will operate only when those modules have the same size and type. NOTE: We strongly recommend user to slot two DDR memory modules into the DIMMs with the same color in order for Dual Channel Technology to work. The following tables include all memory-installed combination types: Dual Channel Technology (DS: Double Side, SS: Single Side) 2 memory modules 4 memory modules DDR1 DS/SS X DS/SS DDR2 X DS/SS DS/SS DDR3 DS/SS X DS/SS DDR4 X DS/SS DS/SS Don't operate Dual Channel Technology (DS:Double Side, SS: Single Side) 1 memory module 2 memory module 3 memory module DDR1 DS/SS X X X DS/SS X DS/SS DS/SS DS/SS X DDR2 X DS/SS X X DS/SS X DS/SS DS/SS X DS/SS DDR3 X X DS/SS X X DS/SS DS/SS X DS/SS DS/SS DDR4 X X X DS/SS X DS/SS X DS/SS DS/SS DS/SS Chapter 1 27