Sorry, I didn't know where to post this. I am helping my mother with her computer (Compaq Presario CQ50-215NR). It would not boot today, totally blank screen though some LED lights worked. I tried the following and believe I have discovered the problem but now I have no idea what do.
1. Hard reset - no change
2. Based on another forum, I removed the RAM and reseated - no change
3. Removed top RAM - booted!
4. Tried each RAM in both slots - Both worked in bottom but neither worked in top.
So my question is now what? Is this something that can be fixed or am I looking at a new motherboard or something? I am only computer literate enough to get in trouble. :-(