Review on Patriot Signature 4GB PC3-10600 (1333MHz) DDR3 SODIMM Laptop RAM PSD34G13332S by Bujang'e Lor Nganim ᠌

A brief educational program on the selection of memory for your laptop. Of course, the basic parameter is the type of memory, DDR3 or DDR3-L. In an ideal world, DDR3L can be installed instead of (or together with) regular DDR3, but not vice versa. In real (namely for a laptop) it is better to use only the "factory". Further, an important parameter for "compatibility" when installing two modules is the number of "ranks". It is important to know that the number of ranks and the number of "sides" of installing chips are not the same, usually these values ​​\u200b\u200bare equal (it's just more convenient to breed a board for a module), but not always, which can cause incompatibility. For chipsets, the capacity of memory chips is important, which is why modern modules with more capacious chips may not be recognized. Count the total number of chips on the factory module, divide it by the number of ranks. Next, divide 64 by the resulting number, this will be the bit depth of the chips. Chips with the same or less bit depth are suitable, with more often - no. Timings and maximum frequency, for a desktop, usually any will do, just the worst ones will be used. But some laptops categorically refuse to work with faster in frequency (not in timings, namely in frequency) brackets, they don’t have any settings in the BIOS for this, so you need to take the bar as close as possible to what was installed at the factory, anyway, “overclock "Laptops don't have memory. And, in the case of two modules, for a full-fledged two-channel mode, both modules must be of the same volume. Often not all characteristics of the factory module are written on it. Therefore, run any utility that will show them, for example, CPU-Z. On the Memory tab, we look at the frequency and timings used, and on the SPD tab, we look at the number of Ranks. The second step is to extract the native module, count the memory chips on it and calculate the bit depth of the chips using the formula above. A module with such characteristics as a replacement (or in addition) is needed.