At the weekend I installed an Asus P5W DH Deluxe after memory problems with P5Q Deluxe. I installed my 4Gb of Corsair RAM and it was showing 4Gb during POST. However, in the past 24hrs it is displaying 3.2Gb with the remaining 800Mb going towards 'Appropriated Memory'. Why has this suddenly happened? I've never seen it happen on my other P5W DH mobo or the P5Q Deluxe. Tom.