The Prometeia Mach II GT is intended to sit below the PC, with the cold head going up through a hole cut in the base of the computer case to the processor. As we mentioned, pre-modded cases can be purchased, or the cutting and drilling of the bolt holes can be done by the user. There are four bolts that screw into the top of the prometeia to hold the PC chassis above in place, firmly.

The bolts are large enough that the computer won't tip off, but if moving the system around it's a good idea to lift from below. For the purposes of this review, PCSTATS omitted installing a case above the Prometeia Mach II GT, and instead built a custom rig to hold the components of the PC test system in place in an open environment.

Essentially, what we did was dig up a large motherboard tray and drill a 120mm diameter hole directly through sheet metal to line up with the processor socket of the DFI Lanparty NF4-SLI motherboard. The 120mm hole allows us easy access to the back aluminum mounting plate of the Mach II GT's socket mechanism, so changing processors out is quite simple.

The motherboard tray is held in place on the chassis of the Prometeia Mach II GT with a set of "L" shaped tempered 304 stainless steel brackets which are bolted down with the included hardware. The metal brackets are rigid enough to support the weight of a fully loaded Athlon64 SLI motherboard so that minimal flexing of the cold arm head occurs. The cold head arm stiffens up when the phase change cooler is working, so it's generally a good idea not to flex it much during that time.  The powersupply, hard disk and optical drives are stored just below the motherboard tray (at the side of the Mach II GT) where they are out of the way from the serious business of overclocking. :-)