Review on Timetec 8GB KIT (2X4GB) DDR4 2133MHz Desktop RAM Upgrade - Non-ECC Unbuffered 1.2V CL15 1Rx8 Single Rank 288 Pin UDIMM Memory Modules For PC Computer (8GB KIT) by Troy Tec

I purchased a kit of two 8 MB RAM sticks, hoping to add to my existing two 4MB Samsung sticks that came with the computer. After much research, it seemed that these were an identical match spec-wise with the existing ones (1333 MHz, 288Pin, UDIMM, DR4, 1.2V, unbuffered, non-ECC, et.), albeit from a different manufacturer. I checked the service manual for this computer, and it should be able to support this four-stick configuration of two 4s and two 8s. In addition, Dell recommended this manufacturer on their website community, so I was hopeful that they would work together to give me 24 MB RAM. I closely checked that they were in the correct locations too (XMM3 and 4). Unfortunately, when installed in conjunction with my existing RAM, the computer would not start up. Alone, these work fine, and the boost is noticeable (thus it is recommended for purchase), but I would have preferred them to work in tandem for an even larger benefit. Not sure if that is the fault of Dell and their systems, or that is an issue specific to the RAM. From my research, it could just be the way the Alienware computers are designed (which sucks if true - not sure if this is the case for all computers that you have to match manufacturers and specs exactly - I could not find a good match from Samsung so I went with these). Just wanted to share for others in the same situation.