My motherboard uses Intel 430VX chipset and I have a 64 MB DIMM module installed on it. I've bought a 128 MB module and the board just counted 32 MB. The hardware store owner where I've bought this memory told me that I couldn't install a 64 MB or 128 MB memory module at this motherboard that I have. Is that really true?
The Intel 430VX chipset only recognizes 128 MB of RAM memory. Besides that, only the first 64 MB are cacheable (i.e., used by the memory cache; the PC loses performance when memory locations above 64 MB is accessed at this motherboard). The sollution is to change your motherboard with one that the chipset can access 256 MB or higher, like the Intel 430TX chipset and VIA chipsets.