Dual Channel Memory Upgrades

What is Dual Channel?

Dual Channel is a technology that doubles data throughput from RAM to the system memory controller. Dual-channel-enabled memory controllers utilize two 64-bit data channels, resulting in a total bandwidth of 128-bits, to move data from RAM to the CPU. In simpler terms, it is like widening a highway from 64 lanes to 128 lanes – more traffic is allowed to move through a wider data path.

Example for PC2-5300 memory: If two matching modules are installed in a dual-channel configuration, memory maximum throughput increases from 5300MB/sec to 10,600MB/sec.

How does it work? What do I need to do to enable it?

Computers that support the Dual-Channel memory feature are typically designed with two or four memory sockets. Many computers do support the Dual-Channel memory feature, including consumer desktop systems, laptops as well as professional workstation PC's and server computers. Your system specifications will verify if your system supports this feature.

In order for the feature to be enabled, two DIMMs of the same size, speed and chip manufacturer must be installed into matching memory banks, which are usually color coded. Though it may not be required to install 100% identical DIMMs, it is highly recommended to do so for optimal system compatibility and reliability. Once the matched pair is installed into the proper DIMM sockets, the computer will automatically recognize the matching DIMMs and enable the Dual-Channel memory function.

Installation of an odd number of DIMMs (i.e. 1 or 3) will usually automatically default to single-channel mode memory operation. In other words, memory bandwidth decreases from 128-bits to 64-bits.

As previously mentioned, most system systems have color coded DIMM sockets for ease of identification and installation. However, it is our advice to always refer to your system User Guide (or manufacturer's website) for proper Dual-Channel memory configuration. While each computer system may adhere to certain standards, not all computers are the same. Likewise, memory upgrade on one system may be very different than another system. Your manufacturer's User Guide (or website) should contain helpful information regarding memory upgrade, and proper configuration information to enable the Dual-Channel memory feature.

Do I have to buy my memory in pairs to make dual channel work?

In order to enable the Dual-Channel memory feature of your computer it is necessary to install memory of the same capacity and speed in pairs. It may not be required to install 100% identical DIMMs, however it is highly recommended to do so for optimal system compatibility and reliability.

Centon offers memory upgrades sold as single modules, as well as kits containing two identically matched DIMMs (or SODIMMs). When possible, we recommend purchasing our Dual-Channel memory kits for best results. Centon's Dual-Channel memory kits are carefully matched at the factory to make sure each DIMM is 100% identical and optimized for dual-channel memory operation.