Wham, bam, thank you, RAM. Image credit: Valve/Eurogamer Valve might be making four versions of its new Steam Machine - including a 512GB and 2TB option - if a software update to the Steam Controller's reservation system is to be believed. Spotted by user Pepeizg on the Steam Machine Reddit , last Thursday's Steam update seemingly included references to four Steam Machine packages, two Frame (VR headset) packages, as well as Steam Controller and Steam Deck packages. Packages, in layman terms, are folders containing specific kinds of files. Here's the Steam Machine announcement trailer. Watch on YouTube This update was focused on Steam's reservation system, which has led to a growing belief that these four new packages refer to different versions of the Steam Machine. But if there are four separate packages for the Steam Machine, what could they be? In an interview with Digital Foundry last year Valve indicated it wanted four different versions of the PC-console blend.…