Review on A-Tech 8GB RAM Stick Upgrade for Dell OptiPlex 9020, 9010, 7020, 7010, 3020, 3010 - DDR3 1600MHz PC3-12800 Non-ECC DIMM Memory Module by Jason King

Ordered two of these for a Dell Optiplex 3020. Worked fine for two weeks, then had a problem booting the system with the PSU on and off about every 10 seconds. Everything was fine the next morning, but the on-off problem returned a week later. YouTube suggested testing the power supply by removing all components *including* the memory and then reinstalling them one by one. The problem was related to one of the two 8GB modules I bought. The second of the two works perfectly. for now . but I return both bonds.