Vista shows 3gb memory

[sshaggy]

Well I have a laptop , and of course the BIOS is locked, and i cant change anythiing, except boot device option. And the 400MHz Ram was factory installed, and I bought the 333MHz RAM later. I was a novice then, and didnt knew anything about RAM frequency mismatching.

 

[tyttebøvs]

which is incorrect.

He said RAM (which normally means your DRAM) not address space. And unless you have MMIO=0 then you need 64bit Vista to address all of your 4GB RAM.

 

[Springy182]

How much memory does your video card have?

That's not true actually, a dedicated video card like a 9800GT or Radeon 4870 doesnt affect system RAM, it's a misconception because of 32 bit address space only seeing 3.5GB RAM and people having 512MB graphics cards, try running a 4870 1GB or GTX 280 on 1GB DDR2, it'd work

 

[thandakid]

I have 4 Gb RAM but vista 32 bit on my laptop and 512 mb dedicated VGA so my comp shows only 3Gb
So that is why i thought so ....
Thanx for telling me bout the GPU stuff

 

[tyttebøvs]

That's not true actually, a dedicated video card like a 9800GT or Radeon 4870 doesnt affect system RAM, it's a misconception because of 32 bit address space only seeing 3.5GB RAM and people having 512MB graphics cards, try running a 4870 1GB or GTX 280 on 1GB DDR2, it'd work

Memory mapped I/O. VRAM is part of that. So yes, it reduces the usable amount of address space that can be used to your normal system ram.

VRAM is just not always mapped 1:1

Edit: I think you have RAM vs address space messed up.

 

[The Best Jack]

Thanks, for this information, my mate had the same problem and this solved the problem.

Jack.