4 GIG of memory only showing as 2.92 usable

[roryson]

could someone explain to me why my memory is only showing as 2.92GB usable. My memory is a 4GB crucial ballistix. running windows 7 32bit

[Cod3waX]

maybe theres a hidden partition?

have u formatted it back to its defaults?

[R_J]

Do you have on board video? the onboard video will use some of that 4gb of memory. check your motherboard specs.

[McrRed]

Most versions of Windows 7 apart from Ultimate will only allow 3gb to be used. That's one of the reasons people go for 64bit.

Stupid, I know

Sent from my F9S using Tapatalk HD

[steve67474]

windows 32 bit system can only address up to 4gig this includes graphics as well as usable memory so if you have a graphics card wih 1gig of memory on it then windows will reserve 1 gig of its adressable space for that leaving 3 gig for system use. upgrade to 64bit and you will see all 4 gig

[roryson]

Thanks Guys for the help..

[Canker_Canison]

windows 32 bit system can only address up to 4gig this includes graphics as well as usable memory so if you have a graphics card wih 1gig of memory on it then windows will reserve 1 gig of its adressable space for that leaving 3 gig for system use. upgrade to 64bit and you will see all 4 gig

Then why does my Win7 pro 32bit version show all 4GB of memory in my system?

This has nothing to do with 32/64bit versions, it's all to do with the actual version of Windows being used. Basic versions are limited on visible memory, the non-visible memory will still be used for paging.

[R_J]

Memory Limits for Windows Releases

Microsoft site: Memory Limits for Windows Releases (Windows)

[Reapers]

yeah like everyone said the x86 version of windows 7 is 3gb sometimes the most it will get is 3.2 if the bios the updated or current.

[R_J]

I copied this from ASUS motherboard site:

FAQ
I have install total 4GB memory on my motherboard. However, it can only recognize around 3.1GB or less. My friend's SLI board even less than 3GB. What's up? How should I do to recognize 4GB totally?

---

Solution
If you installed total 4GB memory, the system will detect less than 4GB of total memory because of address space allocation for other critical functions, such as:

- System BIOS (including motherboard, add-on cards, etc..)
- Motherboards resources
- Memory mapped I/O
- configuration for AGP/PCI-Ex/PCI
- Other memory allocations for PCI devices

Different onboard devices and different add-on cards (devices) will result of different total memory size.
e.g. more PCI cards installed will require more memory resources, resulting of less memory free for other uses.

On a SLI system, since PCI-Ex graphic cards will occupy around 256MB, another 256MB will be occupied after you install a 2nd PCI-Ex graphic card. Hence, 2.75GB memory left only if two SLI cards installed on A8N-SLI Premium while 3.0GB memory left with one graphic card without other add-on devices.

This limitation applies to most chipsets & Microsoft Windows 32-bit version operating systems.

If you install Windows 32-bit version operating system, we recommend that you install less than 3GB of total memory. If more than 3GB memory is required for your system, then below two conditions must be met: 1. The memory controller which supports memory swap functionality is used. Chipsets later than Intel 975X, 955X, Nvidia NF4 SLI Intel Edition, Nvidia NF4 SLI X16, and AMD K8 CPU architecture support memory swap function. 2. Windows 64-bit OS which can address more than 4GB memory.

[R_J]

And this flom Biostar: (- -)

Why my H55 chipset motherboard will only recognize 3.87GB of memory when insert 4GB memory module?
If user try to insert a PCI-E VGA card + H55 series motherboards + Clarkdale CPU + 4GB Memory module, then Win7 64Bit O.S will only recognize 3.87GB.

This is because Intel define two block area to reserve as EP-UMA (1-64MB) + 0MB-64MB wasted. So system will not be able to recognize full 4GB OS due to chipset limitation.