Vista not showing 4 GB installed memory. Solution ​>>>​;>

    The anwer to that is to get in to CMOS.  You do that by  when starting your computer you press DEL button,  to get to cmos configuration program.    When there you There is a motherboard feature you can enable  and disable and that is Remap Memory.     

Note.   But only enable if you have Vista 64 bit.

So Good Luck!  Computer Friends!!   /  Calle     (Sweden)

Calle80 wrote:

    The anwer to that is to get in to CMOS.  You do that by  when starting your computer you press DEL button,  to get to cmos configuration program.    When there you There is a motherboard feature you can enable  and disable and that is Remap Memory.     

Note.   But only enable if you have Vista 64 bit.

So Good Luck!  Computer Friends!!   /  Calle     (Sweden)

that is not standard on all mo-bo's 

if you have that feature ok.

but most consumer pc's do not have that feature.

figuerres wrote:

but most consumer pc's do not have that feature.

On my consumer PC there's no such option in the BIOS, but it appears to be on automatically. Vista x64 sees the full 4GB memory (but 32 bit XP does not).

Interestingly though, this thread does show that the forum poorly handles thread titles, being that it encodes then 'substrings'..

Sven Groot wrote:



figuerres wrote: but most consumer pc's do not have that feature.

On my consumer PC there's no such option in the BIOS, but it appears to be on automatically. Vista x64 sees the full 4GB memory (but 32 bit XP does not).

then your Mo-Bo / BIOS has the "remaping" option and may do it automatic... the PCI I/O Address range by default is between 3G and 4G on any PC.

as I understand it from reading sveral sources the BIOS has to "remap" that IO address space to make it work.

a lot of folks have asked this and different blogs and web sites have all came back with the same answers.


Good to hear that at least some system boards / BIOS are "smart"

what brand / model is it??  what BIOS ??

Is this just a bot? it's poorly formatted and it sounds translated...

figuerres wrote:

then your Mo-Bo / BIOS has the "remaping" option and may do it automatic... the PCI I/O Address range by default is between 3G and 4G on any PC.

as I understand it from reading sveral sources the BIOS has to "remap" that IO address space to make it work.

That's what I meant. It does has this functionality, just no option to control it.

figuerres wrote:

Good to hear that at least some system boards / BIOS are "smart"

what brand / model is it??  what BIOS ??

It's an MSI P965 Neo. Not even that recent.

It's nice to have this though:

32 bit systems have a maximum addressable range of 4G (2^32) in that range has to be your bios and video addressing ergo the maximum you will see will be in the 3G range or less.. you can use the /3G switch to allocate more memory for application data.  The answer is to use a 64Bit CPU and operating system but this will be at the expense of losing 16bit app's.  Back when the 386 was first installed 4G of ram was like >512M hard drives considered overkill. Same goes re: PCI video The pc architecture these days is pretty much a patched together quilt and truly needs a complete overhaul but considering how slow the ATB form factor is replacing the ATX form factor I wouldn't hold my breath.

sometimes its help:

Start -> cmd - Run as administrator
BCDEdit /set PAE forceenable


but it`s not help for me, because i use 6Gb (2*2Gb, 2*1Gb)