Mainframe with Integrated Lid

FIG. 1 is a top, front perspective view of a mainframe with integrated lid showing our new design; FIG. 2 is a side view thereof; FIG. 3 is an opposite side view thereof;. FIG. 4 is a front view thereof; FIG. 5 is a rear view thereof; FIG. 6 is a top view thereof; FIG. 7 is a bottom view thereof; and, FIG. 8 is another top, front perspective view thereof, shown in a used condition with unclaimed components attached. The broken lines shown in the figures are directed to unclaimed portions of the mainframe in FIGS. 1 - 8 and unclaimed components attached to the mainframe in FIG. 8 that form no part of the claimed design.