Finally got round to installing my other 4Gb of ram today (2x2Gb), even got rid of the HUGE amount of dust thats somehow accumulated inside me case, anyways i installed the modules, was happy at the job i had done and reattached window, turned on PSU then PC only to be greeted by 100% GFX fan, thats it, no display, no slowing of the fan on my graphics card, anyone got any ideas why that has happened and anyways to correct it? im using OCZ PC6400 'reaper' DDRII modules if that makes a difference, running slightly overclocked 
