[ubuntu] how to increase RAM ?

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http://ubuntuforums.org – Hello Ubunters :-) What a silly question, eh? You only need find the suitable memory bar for your computer, stupid. Well, the problem is I bought this slim computer a year ago or so. When I opened it the other day I found that the slot which is there to receive the memory bar is placed right under the CD/DVD drive!!!!:!: So I my only hope is that there is perhaps a software I could use on a memory STICK and which could boost the ram ? Thanks in advance to anyone for help. some technical features : vendor: FOXCONN version: 1.0 serial: To Be Filled By O.E.M. width: 32 bits (Hardware)