Thread: Memory loss

I have a PC running a Gigabyte motherboard and a Pentium III processor (735 M Hz). I have installed a 256MB SD RAM module, but the computer only shows 128 MB. The other 128MB is not put to use. I'm really puzzled. What might be the cause for this problem and what is the solution?

The graphics solution on the motherboard might be using system memory. Boot into the BIOS and check for the allocated memory.