32gb of RAM only able to use 2.99GB!!!!

ghostcoderg · Mar 21, 2013

i have windows 7 home premium 32bit (for performance) and i just booted my pc up yesterday new build, everything's working fine except when i saw only 2.99gb is usable ram. It says i have 32 installed though any ideas?

*****************************EDIT********************************

I installed Win7 ultimate 64bit but now im only getting 7.99 usable do i need to install the service packs as well?

AMD Phenom II x6 1045T processor
Biostar TA970xe MOBO
4x 8gb DDR3 1333mhz RAM
AMD Radeon HD 7970
900wat Power supply
winows 7 home premium 32bit

mindless728 · Mar 21, 2013

You need to install Windows 7 64 bit as the 32bit can only address 3GB of memory

Though Home Premium 64 bit will not do as MS limits the memory to 16GB for that version of Windows 7
http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778%28v=vs.85%29.aspx#physical_memory_limits_windows_7

spawnkiller · Mar 21, 2013

you'll need a 64 bit pro or ultimate version of windows 7 to see all 32gb...

mobrocket · Mar 21, 2013

windows 7 premium for performance???

i dont understand that comment

Feldmarschall · Mar 21, 2013

Get yourself Pro or Ultimate X64 version.

manofchalk · Mar 21, 2013

You need a 64bit OS to use more than 3.5GB of RAM.
In the case of Windows 7, you also need Professional or better to use more than 16GB.

the great randini · Mar 21, 2013

all 32 bit windows os have a 4 gb limit for memory with 3.25(most times) usable
windows 7 home basic 64 bit has a 8 gb limit
windows 7 home premium 64 bit 16 gb
windows 7 pro and ultimate 192 GB

Physical Memory Limits: Windows 7

J_E_D_70 · Mar 21, 2013

Not to add insult to injury, but if this is for gaming you'd have been way better off with 8GB of RAM (maybe 16) and put the difference into a better CPU and mobo. Just sayin...

random stalker · Mar 21, 2013

32-bit and 64-bit explained
Updated 6. June 2012 - 1:49 by Remah
This tutorial should help you to understand the concepts of 32-bit and 64-bit computing. We'll look at your computer system as three parts: the hardware, the operating system and the application programs. At the end we'll look at some of the common questions people have.
32-bit versus 64-bit

As the number of bits increases there are two important benefits.

More bits means that data can be processed in larger chunks which also means more accurately.
More bits means our system can point to or address a larger number of locations in physical memory.

32-bit systems were once desired because they could address (point to) 4 Gigabytes (GB) of memory in one go. Some modern applications require more than 4 GB of memory to complete their tasks so 64-bit systems are now becoming more attractive because they can potentially address up to 4 billion times that many locations...

more info here>
http://www.techsupportalert.com/content/32-bit-and-64-bit-explained.htm
http://windows.microsoft.com/is-is/windows-vista/32-bit-and-64-bit-windows-frequently-asked-questions#

tl:dr>
Your system can not handle more than 4GB of RAM.
Your system will show you the available RAM which is 4GB - graphic card RAM - drivers reserve... Which makes in your case 2.99 GB.
Hope it helps

avacadobread · Mar 21, 2013

I'm sure that everyone has told you, that a 32BIT OS cannot support more than 3Gb or RAM.

ghostcoderg · Mar 21, 2013

mindless728 :

Ok I installed win7 ultimate 64bit but now its showing 7.99 usable do i need to update it to SP1?

J_E_D_70 · Mar 21, 2013

When you go into the BIOS, how much does it show there? What what are you using that says you have 7.99?

If the BIOS only shows some other amount than 32, power down, remove one bank (two sticks) and see if you get 16 to show. If not, repeat the process and swap out one stick at a time.

ghostcoderg · Mar 21, 2013

J_E_D_70 :

BIOS says 32 is installed but windows shows 7.99

ko888 · Mar 21, 2013

Did you check, in the UEFI BIOS, that the Memory Hole Remapping function is set to Enabled?

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32gb of RAM only able to use 2.99GB!!!!

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