Review on Upgrade Your Laptop'S Performance With Timetec'S 4GB DDR3L / DDR3 RAM At 1600MHz Speeds - Non-ECC, Unbuffered, Dual Rank, With 204 Pin SODIMM - Low Voltage 1.35V / 1.5V, CL11 (4GB Module) by Josh Nat

Ordered this ram upgrade for my refurbished HP EliteDesk 800 G1. Photo shows "before" memory upgrade which consisted of 2 4GB memory modules (8GB total). This is a "mini" PC (only about 10 X 10 inches) so only 2 memory memory slots.PC seemed to run OK with 8GB (max possible was 16GB) but Google seemed to often not load a new internet screen without using "Reload" from a drop-down menu. Online search suggested that problem may be insufficient ram. So, I figured that more ram at least couldn't hurt.There seem to be many different suppliers to choose from at many prices. I wanted to replace the 2 4GB modules with 2 8GB modules (16GB total). Perhaps a single 16 GB module would have worked but I didn't want to add any more unknowns than necessary so I wanted 2 8GB modules.In the HP, the ram modules are readily accessible and easily removed and replaced. Not swapping ram in and out much anymore, the module configuration specification numbers were to some extent undecipherable to me. So, I looked for replacements that had most if not all of the same specifications. Furthermore, it was not exactly clear if the offer (price) was for one or two modules. THESE modules had the exact numbers plus said "kit" so I knew I was getting 2 modules.Installation was literally a 1 minute job! Of course, be careful and concerned about physical damage and ESD damage. I took a number of photos before replacement including photos of the various external cable connections. I further cloned the internal SSD drive to an external drive that I regularly use for weekly clones.At startup after upgrading, the BIOS recognized that the ram configuration had changed and showed "press F1" to do something. In the "old" days, you HAD to go into the BIOS and agree or set the new size. Here, I just pressed any key without getting into the BIOS and the PC successfully booted into W10. I could visually see that speed of had increased. Next, had to verify that everything was working.Everything except my USB sound speakers was working fine. I didn't see how the memory upgrade could possibly affect sound. Online suggested to "reload" the sound driver. I did and this fixed it. Haven't seem the Google "reload" requirement.In summary, easy, safe upgrade for me and good price and quality - they work!