First, the young dogs are not out tonight.
Second, all 32-bit Windows OS'es will not support above 3.5 GB of system memory. See http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx. FYI, I have two 2.6 GHz P4s on the D865PERLL boards running Windows 7 Ultimate 32-bit with 3 GB of system memory and 2565 MB Video cards. They are running much faster than when they were using Windows XP Pro.
i am having a similar problem, i just got 4 memory moduels at 1gb 400mhz each. after i installed the memory i found out that windows will not use all of it but every time the pc is turned on the motherboard will randomly read some or all of the memory modules as 1024, 512, or 256 MB. Also I can not hibernate with this new memory installed. The memory brand is Patriot if that makes a difference. Is there any thing i can do to make the mother board read the memory as 1024 each every time the pc is started and can i get hibernate back???
P4 @ 3ghz
D865 PERL mother board
4 X 1GB patriot psd2g400kh memory
nvidia 6200 512MB video card