Acer Veriton 5800 Veriton 5800/6800/7800 Service Guide (Gigabyte MB) - Page 28

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: Channel A : DDR1, DDR3 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 1 2 Only one DDR memory module is installed ? Two DDR memory modules are installed ( the same memory size and type) ? Three DDR memory modules are installed ? Four DDR memory modules are installed ? Description The Dual Channel Technology can't operate when only one DDR memory module is installed. The Dual Channel Technology will operate when two memory modules are inserted individually into Channel A and B. If you install two memory modules in the same channel, the Dual Channel Technology will not operate. Pleae note that the Dual Channel Technology will not operate when three DDR memory modules are installed; part of them will not be detected. If you install four memory modules at the same time, the Dual Channel Technology will operate only when those modules have the same size and type. 3 4 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) DDR1 2 memory modules 4 memory modules 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) DDR1 DS/SS X 1 memory module X X 2 memory module DS/SS X DS/SS DS/SS 3 memory module DS/SS X X DS/SS X X DS/SS X DS/SS DS/SS X DS/SS DDR2 X X DS/SS X X DS/SS DS/SS X DS/SS DS/SS DDR3 X X X DS/SS X DS/SS X DS/SS DS/SS DS/SS DDR4 Chapter 1 27