3 Reasons New RAM Causes Crashes
Incompatibility with your motherboard If the new RAM has the wrong speed or voltage for your motherboard, it can cause crashes or boot loops. Check your motherboard’s supported specifications before assuming the sticks are defective.
A defective stick from the factory Manufacturing defects happen, and a bad stick can cause blue screens or system instability. Test each stick individually to isolate the faulty one.
Improper seating in the slot RAM that isn’t fully clicked into place can cause intermittent crashes. Remove and reseat the sticks firmly until the clips lock.