On a computer that is running Windows 7, the usable memory (RAM) may be less than the installed memory. For example, a 32-bit version of Windows 7 may report that there is only 3.5 GB of usable system memory on a computer that has 4 GB of memory installed. Windows 7 will install with a low amount of RAM. However, don’t expect it to run very smoothly with anything less than 1GB. Now that we have mentioned the minimum RAM memory requirements for Microsoft Windows 7, check out the max RAM configurations for Windows 7. Windows 7 was designed to work with today's multi-core processors. All 32-bit versions of Windows 7 can support up to 32 processor cores, while 64‑bit versions can support up to 256 processor cores. PCs with multiple processors (CPUs): Commercial servers, workstations, and other high-end PCs may have more than one physical processor. I recently added a 2GB memory stick to a TravelMate 5740 laptop running Windows 7 32-bit which already had 2GB of RAM. I am aware of 32-bit systems not making use of the full 4GB memory, but I was expecting actual usage between 3GB and 3.5GB. Instead, Windows reports 4GB installed, 2.3GB usable. 32-bit Windows has an address space of 4GB. Part of that is used by system BIOSes and graphics memory. With a 256MB graphics card about 3.3-3.5GB of RAM can be addressed and used, assuming you have 4GB fitted. On a computer that is running Windows 7, the usable memory (RAM) may be less than the installed memory. For example, a 32-bit version of Windows 7 may report that there is only 3.5 GB of usable system memory on a computer that has 4 GB of memory installed.
Active2 months ago
I recently added a 2GB memory stick to a TravelMate 5740 laptop running Windows 7 32-bit which already had 2GB of RAM.I am aware of 32-bit systems not making use of the full 4GB memory, but I was expecting actual usage between 3GB and 3.5GB. Instead, Windows reports 4GB installed, 2.3GB usable.This is not your average 'where is my memory' question, and I don't think it is a duplicate. 2.3GB of usable memory out of 4GB installed is unexpectedly low even for 32-bit systems. Graphics card is an Intel shared-memory one that uses 128MB. Can anyone explain this? Can this problem be 'addressed', pun intended?
Makaveli84Makaveli84
2 Answers
Here is something you are forgetting to mention:
If you have a graphics card that is not a dedicated Graphics card then it probably uses up memory from your computer.
For instance, I have an HP Pavilion G6 and it has a Radeon HD 6470M graphics card. It is a 1.5 GB graphics card and it is not dedicated.
Because of this, I am only able to use 4.5GB of the 6GB of RAM that I have installed. The graphics card uses the other 1.5BGs. A dedicated graphics card has its own RAM. If you have a dedicated graphics card and you have 6GB of RAM, then you will be able to use all 6BGs.
user 99572 is fine
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user273558user273558
Unfortunately, on 32bit systems hardware address spaces get mapped into the 4GB address space of your memory hence the reason why you never can really fully use the 4GB installed. Usually, one of the biggest culprits is the graphic's card's memory. Since yours only uses 128MB your available size is quite baffling, but who knows what else is mapped into the address space by your BIOS and to what extent. There are several things you can try though:
Open a command prompt and enter 'BCDedit /set PAE forceenable'. Then reboot, enter your BIOS and check if it has an option that allows for memory remapping. If so, activate it. Boot into Windows and check your available RAM.
Yamaha dgx 205 manual. If this doesn't help then the only option would be to upgrade to a 64bit version, or use software that makes use of the unaccessible RAM through other means such as a RAM-Disk.
Edit: I just checked. Your laptop is equipped with a modern Intel I5 which should support 64bit operating systems, so there's really no reason not to upgrade.
Zerobinary99Zerobinary99
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Active7 years, 7 months ago
Possible Duplicate:
How can I enable PAE on Windows 7 (32-bit) to support more than 3.5 GB of RAM? Is there way to enable 4 GB RAM in 32-bit Windows OS?
According to the official windows memory limits, Win 7 only supports 4 GB of RAM. I, however have been reading some forums and some say they are using 8 GB RAM with good performance. I am wondering if I can use 8 GB before I purchase.
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Aravind R. YarramAravind R. Yarram
marked as duplicate by soandos, Dave M, Mokubai♦, Breakthrough, Andrew LambertFeb 27 '12 at 18:26
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migrated from stackoverflow.comFeb 27 '12 at 17:53
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4 Answers
You can install 8 GBs on 32-bit system, but you won't be able to use it. You need a 64-bit system to do that.
MalcolmMalcolm
When using 32 bit machines, only 3,8 GB will be detected and used. If you want more, switch to 64 bits. I'm currently using 16GB on a Windows 7 64 bits Edition.
ZenklysZenklys
The system that allows an OS to use more than 4GB of RAM in 32bit machines is called PAE. Windows supports it, but according to Wikipedia the amount of RAM you can use is limited to 4GB anyway. (Maybe there is some hack allowing that limit to be removed?)
Windows 7 32 Bit Memory Allocation
Read more about PAE on Windows: http://msdn.microsoft.com/en-us/library/aa366796(v=vs.85).aspx
AlvaroGMJAlvaroGMJ
Windows 7 32 Bit Memory Requirements
My box has 4GB ram and when I'm on 32bit Windows I can use only 3GB ram but with PAE I was able to use the rest with a ram disk. When you have 8GB maybe it's possible to use 5GB for a ram disk but anyway the usage is limited to a ram disk.
Windows 7 Professional 32 Bit Memory LimitGigamegsWindows 7 32-bit Memory Usage
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