ASUS P5W DH - Problems + Fixes Thread

[Black Scorpion]

Hi, I have a "problem" that i dont know if it has been reviewed in the thread already, but since this thread has more than 200 pages well... i have just bought this motherboard and i flashed it to the 2004 bios, overclocked perfectly my E4300 to 3.0Ghz Rock Steady, im useing it with 4GB of Corsair XMS2 PC5400C4 memory modules all "overclocked" to 834 mhz since in bios there isn´t a plain 800 mhz option, i know this modules are 675 mhz marked, but they do 800 mhz with a hand tied in the back, im useing 2v in them for stability reasons only, since they work fine at 1.9v most of the time, only orthos makes them fail after some time of running it... well the thing that bothers me a little its that in bios post and in windows operating systems only reports me 3.2 GB of ram, when in cpu-z and other programs they see the 4GB i have installed, i know the lower memory showing in system panel its for the lack of PAE in windows 32 bit systems, so i installed as second OS Windows Vista 64 bits to "see" my 4GB, but to my surprise in this board still tells me that i only have 3.2 GB of ram, even in this 64 bit system...

This is the first board that gives me this "problem" (since still has a quite good performance, but you know, i want to see my full 4gb in control panel )

Thanks all in advance for your replys to my problem, and hope someone can help me to set bios or something to see my 4GB of ram as i see a screenshot in this last page showing 4GB in Vista 64.