How to Fix a RAM Slot that is Not Working (STEPS) - Volt Fixer
Try going over the RAM slot with a vacuum cleaner on a low setting, in case there's a hair in there or something. You didn't see any hint of bent pins or pins slightly more pushed down than the others, not from any angle.
Learn the Difference Between PCI and PCIe – Slot and ...
The first one I will introduce is PCI slot. This slot has two types: 32-bit slot with 124 pins and 64-bit slot with 188 pins.