Decomposing 32-bit Windows 7 can use 4G memory lie

These days in many website forums, some people say that 32-bit Windows7 can recognize 4G memory, some people say that the photo is PS, some people say that 4G memory can not be used It’s Microsoft’s fault. I think it’s very interesting to see the younger brother, but the intuition tells me that this is impossible.

Ever since, once installed in a 4G Windows7 play 32, which is really the system may exhibit properties 4G of memory.

before but have read Mark's translation of a masterpiece boss pots, which are convincing in theory, is to Windows7 these theories have been overthrown?

immediately run msinfo32.exe, really At first glance, it is also 3.25G.

then meminfo look at the allocation of physical addresses, is also displayed 3.25G

Sure enough, it seems that only one truth ah, go to the Device Manager inside look

CFF70000 to FFFFFFFF this memory have become so-called "memory hole" and was occupied by equipment

so, inside the so-called 32-bit Windows7 support 4G memory is only able to identify reflected in 4G, but only Can use 3.25G.