Hi, I've just replaced my motherboard with another after it malfunctioned (exact model). however I was surprised to see it shows I have less RAM in windows (in "My Computer"), I have 1.5 GB of RDRAM, but now it shows I have 1.43 GB..... the bios screen reports I have only 1472MB which once it showed 1536, and in windows showed 1.5GB... I have no shared memory cards, I've looked through my bios settings but I cant find what is using this memory when I run the "winmsd" command it shows:"Total Physical Memory 1,536.00 MB" what can cause this difference and how can I get my memory back??? thanks!! System Spec's: P4-2.8Mhz, Asus P4T-533C, 1.5GB RDRAM-1066, Connect3D ATI X800XT PE VIVO (AGP), SB Audigy 1394, WinXP Pro' SP2.