Five odd problems caused by faulty RAM. These symptoms To fix a faulty slot you would need to replace your motherboard. When replacing. Hi Guys, I've got an Asus P5B Deluxe motherboard. Today I tried adding some new RAM to take it from 4GB to 8GB. The board is about 6 years'. A memory slot is a slot in your motherboard where you place your RAM (Random Access Memory) card. In layman's terms, the RAM is the.