4gb showing 3gb ram usable in windows 7 32bit os

Dilshad Dillu · Jun 17, 2014

i have radeon hd7770 ddr5 1gb dedicated
and 1277 mb shared system memory

i have 4gb ram but only 3gb is usable

will i get full use of 4gb when i change to windows 8.1 64 bit

i7Baby · Jun 17, 2014

No. 3gb usable means 1gb is being used.

wolverine96 · Jun 17, 2014

Are you seeing this in the BIOS, or inside Windows?

the great randini · Jun 17, 2014

yes. but you will have to do a fresh install you cannot upgrade from windows 8 32 bit to 8.1 64 bit

http://technet.microsoft.com/en-us/library/jj203353.aspx

Dilshad Dillu · Jun 17, 2014

when i look task manager

installed 4046 mb
total 3067mb
hardware reserved 1023mb
available 2gb

will i get full use of this ram in 64bit

Dilshad Dillu · Jun 17, 2014

inside system

Dilshad Dillu · Jun 17, 2014

the great randini :

will that solve this problem

wolverine96 · Jun 17, 2014

As i7 baby said, no.

The only way to be able to use all of your RAM would be to get a better graphics card. Or you could maybe just get more RAM. What motherboard and RAM do you have?

the great randini · Jun 17, 2014

http://www.intel.com/support/graphics/sb/CS-033984.htm

Does upgrading to Windows 8/8.1 increase the amount of graphics memory?

This is dependent on your hardware and software configuration which is set by your computer manufacturer. Check with your computer manufacturer for the actual maximum graphics memory supported by your computer with Windows 8/8.1.

How is graphics memory allocated in Windows 8/8.1*?

The Microsoft Windows 8/8.1 operating system adds improved support for graphics, simplifying graphics, memory configuration, and management. As part of this new graphics memory management, the Intel® HD Graphics Driver leaves more of the graphics memory sizing to Windows 8/8.1.

Can I control how much graphics memory is used by a single application?

No. The amount of graphics memory in use is dynamically allocated to balance the needs of the operating system and all running applications.

notherdude · Jun 17, 2014

This is a desktop PC right? With a dedicated GPU? So I'm not sure what that 1227 'shared' memory is since you are not using on-board graphics.

But I do believe that on a 32 bit Windows OS the "usable" RAM is the term (since Vista sp 1) what is left over after memory mapped I/O - in other words when you hit the three gig limit (3 +/-) on a 32 Windows will tell you what your installed RAM is and what your usable RAM is, so in that case you do end up with 4 gig usable after switching to a 64 bit os but only if your motherboard supports it.

i7Baby · Jun 17, 2014

I bet its got integrated graphics using the extra ram.

bignastyid · Jun 17, 2014

Installing a 64-bit os will make all 4gb usable.

i7Baby · Jun 17, 2014

Won't help if its allocated to integrated graphics.

wolverine96 · Jun 17, 2014

Can you please give us a list of all your parts?

the great randini · Jun 17, 2014

if you install a 32 bit os, you are limited to 3.25 gb of ram. if you install a 64 bit windows 8(non pro) you can have all 4 gb usable.

see more here http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx#physical_memory_limits_windows_8

wolverine96 · Jun 17, 2014

i have radeon hd7770 ddr5 1gb dedicated
and 1277 mb shared system memory

I don't get this. Are you using both the graphics card and the onboard graphics? Is that even possible?

notherdude · Jun 17, 2014

wolverine96 :

I'm pretty sure it is possible and that would explain it. So try disabling on-board GPU.

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4gb showing 3gb ram usable in windows 7 32bit os

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