Review on 🚀 High-Quality Crucial 4GB DDR3 1333 MT/s (PC3-10600) CL9 SODIMM 204-Pin CT51264BC1339 for Enhanced Performance by Ricardo Anderson

I ordered 4 x 4GB of these RAM chips for my mid 2010 iMac and when they arrived in the mail one was defective. Even though I installed all 4 on my iMac, the memory report on the iMac said I only had 8GB installed. At first I thought two of these were faulty, but after careful experimentation and troubleshooting, I realized that since the RAM bed is a 2 x 2 grid with two adjacent squares, then if one of the chips in a bed was faulty , then the other chips in the same bed are also not recognized. I couldn't tell exactly which one was defective until I turned my iMac one by one on the table, unscrewed the RAM bay door underneath, removed and installed each chip to see if the computer recognized it (after restarting it had) 4GB. . When the computer recognized 4GB, I had to turn off the iMac, unplug it, and reinstall the next chip until I found the discrepancy. Repetition. In fact, while the working chips are working fine (for now), spending an hour trying to figure out which ones weren't working was very frustrating.