type of ram?

[titus]

Hello,

Both RAM modules came with the laptop and has been working sincd 2002. However, one of the socket is not seeing any RAM that is plugged in there. About a month ago, the laptop will freeze from time to time and upon reboot, the memory will drop from 512MB to 254MB. I had been re-sitting the RAMs each time it does that and upon starting up, I'll see 512MB again. However, this trick had stopped working now. Don't know why.

Both RAM modules are working as I tried either one on one of the RAM sockets. Motherboard was able to regonize either RAM module in this socket, but not the other one.

Titus