At the risk of drifting the thread so early on in the proceedings, I'd like to interject a small "yes" among the "no"s: the repair manual for a notebook I've been messing with applies to HP- and Compaq-branded variants of the same machine, the main differences being cosmetic. The label on the bottom of the HP-branded item identifies it as "HP-Compaq". You may be right that the cheaper the product, the more likely it is to be Compaq-branded, but you're incorrect in saying it's a separate unit. Since 2008, the rough split is HP EliteBook at the top, HP Compaq in the middle, ProBook at the bottom. So, Compaq is now an exercise in branding and market segmentation, but is not a separate division.