Plan to upgrade notebook memory, in the purchase time, according to their own notebook computer memory of the actual situation, starting from the following aspects.
1. Frequency
Memory that is plugged in at different frequencies, or memory that is not supported by the motherboard, can create compatibility issues.
2. Capacity
In theory, the larger the capacity the better, but the actual average user using 4GB of memory is more than enough. Moreover, the 32-bit system can only support up to 3.25GB of memory capacity, and then the large system can not be recognized. Therefore, to upgrade to more than 4GB, you must use the 64-bit system. If you need to see if your computer system is 32-bit or 64-bit, you can right-click on the desktop computer and choose Properties to open the System window for viewing.
3.CL delay
CL response time is another indicator of memory performance. Refers to the memory access data required for the extended time, simply, is the memory received CPU instructions after the response speed. The general parameter values are 2 and 32 kinds. The smaller the number, the shorter the time required to represent the reaction.