Changing the ram in my toshiba stellite a45 laptop

I don’t have a diagram for upgrading memory in this particular model, but it’s very easy. You can access both memory slots from the bottom of the laptop if you remove the memory cover. The cover is located in the middle, right beside the fans. All you have to do is remove 2 screws and remove the cover. I believe Satellite P15 memory is expandable to 2GB in both slots (Slot A + Slot B = 2GB) and you can use PC2100 DDR RAM, PC2700 memory should work too (it will run at PC2100 speed).

Check the laptop specifications before you buy new RAM module. I just discovered that different Satellite P15 models use different memory types. For example, according to Toshiba specifications Satellite P15-S409 uses PC2100 DDR memory, but Toshiba Satellite P15-S479 uses PC2700 DDR memory (I think it might be a typo, but not really sure).