4 Sticks Of RAM vs 2: Which Is Better For Your PC?
4 Sticks of RAM vs 2: Discover which configuration is better for your PC. Learn about performance, cost, and upgrade options.
How to add RAM slots from the outside to a laptop
For example, if you have two RAM sticks and four slots, you typically need to install the sticks in slots 1 and 3 or slots 2 and 4 to enable dual-channel mode.
DDR2 RAM 8 GB 2X 4 GB 2Rx4 PC2-6400 800Mhz 240Pin Desktop Memory ...
4 slots means more potential RAM in total, but more work for the memory controller. Some have trouble achieving high clocks with 4 sticks.