Kingston ValueRAM 8GB 1600MHz DDR3 (PC3-12800)
Sodimm Laptop Memory Kingston ValueRAM 8GB 1600MHz DDR3 (PC3-12800) Non-ECC CL11 SODIMM Notebook Memory (KVR16S11/8)
Kingston ValueRAM 8GB 1600MHz DDR3 (PC3-12800) Non-ECC CL11 SODIMM Notebook Memory (KVR16S11/8)I purchased two of these to increase my laptop's memory from 8-GB to 16-GB. Kingston's HyperX CL9 memory has faster specifications, but I really think that most people will not notice 2-ns of extra latency. I ordered this CL11 memory, instead of Kingston's CL9 HyperX memory, because I wanted to exactly match the specifications of my laptop's original 2x4GB memory to ensure compatibility since using mismatched memory can cause system instability. And this memory has been working flawlessly in my laptop!
My Dell 17R SE 7720 laptop was originally sold with 8GB (2x4GB) of memory, which was unfortunately the maximum amount of memory that Dell offered as a configuration for this laptop. Furthermore, Dell Support did not recommend going beyond 8-GB of memory, and their Web site offered no memory upgrades for the laptop. I think that the main reason Dell Support recommended to users not to add memory to this 17R SE 7720 laptop model was because this laptop is equipped with a 32-GB mSATA SSD card which is used for both Intel's "Rapid Start Technology" and "Smart Response Technology". Intel's "Rapid Start Technology" speeds up the resume time for a laptop coming out of hibernation state compared to the standard Windows hibernation mode because the system's memory contents are saved to the speedy SSD instead of the hard disk. And their "Smart Response Technology" caches frequently used files, data, and applications on the same SSD drive for faster access instead of going to the hard disk each time. With Dell's 17R SE 7720, the 32-GB mSATA SSD was partitioned with 8-GB allocated to the RST hibernation function, and the remainder of the SSD was allocated to the SRT caching function
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