Pentium Extreme Edition I've Got A QTech Hybrid PC With A Pentium 4 Extreme Edition, Any Idea What RAM Is Compatible?

I've got a QTech Hybrid PC with a pentium 4 extreme edition, any idea what RAM is compatible? - pentium extreme edition

My camera pc ewith only 512 MB of RAM, and I'm looking for an upgrade, but I must know what is compatible with my computer RAM. Thank you.