Qouting from my Mainboard manual:

I have Chaintech Model CT-6ATA2 with three DRAM slots 3.3v, 168 PIN DIMM.

The manual says the maximum suport is 384MB (128MB each).

I was given a 256MB RAM chip and installed in the system of course it only recorgnised 128MB.

Is there any way to get the maximum RAM amount increased thorugh BIOS updates etc or is it just a physical limitation?