Hi,

I have setup Windows 7 Ultimate x64 on my PC. I have 4gb RAM and my BIOS states the correct amount (4096mb), but I cannot Windows (System Manager) says I have 4.00gb (3.25gb usable).

This seems to be a popular issue, and I have looked for an integrated video card (integrated with my chipset) to disable but haven't found anything.

What else can be preventing me from seeing all 4gb? When I had Vista 32bit, it would say 3.25gb RAM not 4.00gb (3.25gb usable). I have an x64 CPU and when I brought my RAM, I used a compatibility tool from Crucial (the memory vendor) to test how much memory my PC can support and 4gb was the answer (this was a windows app I think).

Chipset is Intel(R) G33/G31/P35/P31 Express Chipset PCI Express

In the bios, I looked for an onboard video card (integrated) and there was no such thing, but a couple of other onboard devices. There are also no "Resource Mappings" settings.

FURHTER DETAILS:

Chipset North Bridge: Intel Bearlake G33 South Bridge: Intel 82801IR ICH9R

Maximum Memory Amount 8 GB

Graphics Controller Type Intel GMA 3100 (Enabled)

I guess the first thing is, how do I disable the graphics controller?

EDIT: This thread (http://forums.legitreviews.com/about23417.html) indicates the issue is with memory mapped devices, but someone on this thread says that does not apply to x64. The rest of the comments points to a mobo issue for the guy who started that thread.

Thanks