I'm working on repairing a laptop a customer gave to my shop and he says the problem was that the battery was not holding charge. But that was a small problem compared to the other ones. It had not RAM whatsoever and once i replaced the RAM (used Samsung 256MB DDR @ 133MHz and a IBM module of the same specs) it goes to the boot screen but it does not recognize the HDD in the laptop. The laptop is a Toshiba Satellite A15-S127. Any suggestions as to what might be the problem? I'll update this question once i run a diagnostic on the HDD later today in the shop.