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.
π Power Up Your Gaming Rig with AMD Ryzen 5 2600 Processor with Wraith Stealth Cooler - YD2600BBAFBOX
116 Review
AMD Phenom II X4 940 π» Black Edition 3.0GHz AM2+ Processor - Retail
96 Review
Zalman Performa Performance Powerful Included
172 Review
π¬οΈ Silent Cooling Power: Dark Rock Pro 4 CPU Cooler with 250W TDP, BK022
134 Review
Comprehensive 500pcs Laptop Screw Kit Set for π© IBM HP Dell Lenovo Samsung Sony Toshiba Gateway Acer
12 Review
M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review
π₯οΈ Helifouner 450-Piece Computer Standoffs Spacer Screws Kit: Ideal for Hard Drive, Motherboard, Fan, Power Graphics & Computer Cases
10 Review
uxcell 3.5" HDD Screw Black 200pcs for Computer PC Case - Flat Phillips Head - 6#-32 - Hard Drive Fasteners
10 Review