PC Hardware in a Nutshell: A Desktop Quick Reference - Robert Bruce Thompson, Barbara Fritchman Thompson - Google Books

http://books.google.de/books?id=kG8LcWfruOAC&pg=PT107&dq=%22dual-channel%22+ddr&hl=de&ei=xt5OTe6uN8T1sgbCg7yQDQ&sa=X&oi=book_res

PC Hardware in a Nutshell is the practical guide to buying, building, upgrading, and repairing Intel-based PCs. A longtime favorite among PC users, the third edition of the book now contains useful information for people running either Windows or Linux…