Only a single stick of RAM appears.
Only a single stick of RAM appears.
You're experiencing an issue where your two DDR3 RAM sticks total 4GB, but the system fails to boot when using the two DIMM slots together. One slot detects a stick, while the other doesn't. This suggests a compatibility or configuration problem.
Windows 7 experienced an issue after reseating RAM. It only recognized one stick, and even after updating, the system still displayed a black screen with no cursor after login when RAM was in the blue slots. In the grey slots, nothing appeared at all. Other RAM sticks tried didn’t work because they were old or had been handled frequently. The problem might be related to your motherboard, the RAM itself, or corrupted files.
Check if the issue persists and identify your CPU model and motherboard RAM slots.