Just woundering if anybody has any idea what make and type of motherboard is in my Dell Dimension 8400, or how can i find this information. Also as stated below I have a X850XTPE on my dell, now the question i have about this is that the PSU on the Dell is a 350w, however ATI states that you need at least a 400w psu for this card could this be a reason for image problems when playing Doom 3 for a long time?