I own a Sharp PC-GP10-CM laptop with 1.1GHz AMD Athlon4 mobile cpu. It currently has 256Mb sdram. I am looking to upgrade both the cpu & ram. Firstly, has anyone got any info on wether the chip is upgradable. I can't seem to find any info on the m/b which is a SHARP Corp. PC-GP1 Series 5a Serial Number: 751 Bus Clock: 100 megahertz. Secondly, I require an extra 256Mb ram. Assuming it to pc100,(from bus clock), & sdram from manual, are there sdram's with different pin configs. eg.144 pins or will any 256Mb sdram chip fit.