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3. PC3-12800 (12800 MB/sec) is the same thing as DDR3 1600MHz (1600 MHz data transfer rate) and it runs at 800 MHz DDR clock. Similarly for others, just divide/multiply by 8. Any memory that has the correct voltage and capacity and is same or faster than what is supported by the board should work in the board.
Please, help me to finish all information about DDR3 RAM. And please, correct me if I am wrong. DDR full name is DDR SDRAM (Double Data Rate Synchronous Dynamic Random-Access Memory). It is a main PC system memory. For desktop PC DDR RAM standard - DIMM, for Laptop PC - SO-DIMM. There is DDR, DDR2, DDR3 and DDR4 RAM standards.
58. What you are referring to is related to DDR3 memory standardization. DDR3 or PC3 is the Standard Voltage memory module that operates at 1.50V (JEDEC compliant) DDR3L or PC3L is the Low Voltage memory module that operates at 1.35V (JEDEC compliant) DDR3U or PC3U is the Ultra Low Voltage memory module that operates at 1.25V (still not JEDEC ...
The DDR3 indicates the type of DRAM. SoDIMM indicates a small outline DIMM. (aka notebook form factor). For the other two (speed and voltage) check your manual. It will often state things like DDR-1066 where the 1066 stands for the speed the RAM can work at.
7. According to Dell's article, you won't be able to put DDR3 into DDR3L slot and get it to work because boards utilizing DDR3L expect your memory to work on 1.35V, compared to 1.5 v that DDR3 memory requires. However, it would work the other way around: DDR3L is designed to support both 1.35V and 1.5V operating voltages.
To answer you actual question correctly. The "S" as in DDR3 10600S for example stands for SO-DIMM which is the size of RAM for Laptops. If you had desktop memory the same RAM would say DDR3 10600. Crucial and other companies have a way of not listing the RAM speed with the "S' because in the title of the RAM you are purchasing it says "SO-DIM ...
In your case this will be 1333. So buying 1600 RAM that you intend to use with 1333 will be a waste of money unless the 1600 is actually cheaper, which wouldn't surprise me these days. If you truly are going to get 2x4Gb strips, then you're not going to notice much difference between 8Gb and 10Gb. I'd just chuck the 2x1Gb and let the 4Gb sticks ...
1. The CPU can only access the memory at the speed it was designed to do so at. The memory can only be access as quickly as it was designed. If you use faster memory then the CPU supoprts the speed is limited by the CPU. You gain nothing by putting memory faster then can be supported by the motherboard, infact, past a certain point the memory ...
3. The short answer: you almost certainly won't hurt anything just by trying to install the two DIMMs together. The potential problem is not related to using different frequencies of RAM; any motherboard will fall back to the speed of the slower memory module (DIMM).
26. CL = Column Address Strobe Latency, which shows the number of clock cycles that pass from when an instruction is given for a particular column and the moment the data is available. In general, the lower the CAS latency the better within a given memory technology. So, a CL-9 will be faster than a CL-11, all other things being equal.