Have booked a NZXT Beta Evo.I'll be fitting a Xigmatek Gaia for the CPU and the Height of the Gaia is 159mm where as the specs on NZXT site say CPU Clearence of 154mm.
Does this mean i wont be able to close the side panel?
^^ Yes. Clearance is short of 5mm ~ .5 cm (if my maths isn't wrong) <= amount of cooler poking out of cabinet (with the motherboard tray on the CPU cooler will be around ~ 1cm -- .75cm out of the cabinet.