When you are purchasing a new desktop or laptop PC, you will certainly want lager RAM and hard disk capacity, as well as faster CPU, graphic unit, or even more powerful sound card…
Now, you may meet the problem, although system installed more than 4GB RAM, you’ll notice that only about 3.25GB is being recognized. Where is the remaining?
That’s one of the limitations of 32-bit Windows 7, and there is no official way to use more than 3.25GB RAM. Microsoft recommends you to install Windows 7 x64, which is the 64-bit Windows 7.
But you may find the problems again: Currently, there are many applications still cannot run under x64 environment, and WoW64 (Windows-on-Windows 64-bit, a subsystem of the Windows operating system that is capable of running 32-bit applications) is not always effective; Windows 64-bit does not accept unsigned drivers by default, either.
In fact, Microsoft introduced Physical Address Extension (PAE), a feature of some x86 and x86-64 processors that enables the use of more than 4 gigabytes of physical memory, to Windows Server 2003 and 2008. So there must be a way to transplant the technology to Windows 7.
Fortunately, Russian group Staforce Dosage had done this for us. You can use the patch to enable system recognize more than 4GB memory. Download the patch from HERE.
After downloading, extract and run the file 4GB.exe, press the central button, wait for a while, then press Y to remove the watermark or N to avoid it (this step is optional).
Ready for 4GB RAM in Windows 7
Restart your PC, and you will find the newly built Windows 7 boot menu, select Microsoft Windows … >128GB Memory and it’s all done!
Use more than 4GB RAM in Windows 7
The disadvantage of the solution listed above is, it modified system files, and it may lead unwanted results. A safer way is, use Windows Virtual Memory together with RAM Disk software.
First of all, use diagnostic software like EVEREST to ensure if your hardware supports PAE. If so, click Start -> All Programs -> Accessories, then right click Command Prompt and choose Run as Administrator, enter the command bcdedit /set pae forceenable
Download RamDisk4G from HERE, extract the pack, import ram4g.reg and launch ramdisk.exe. Click Install Ramdisk and ignore the system security warning.
Install RAM Disk in Windows 7
At last, specify the RAM Disk Size and Driver Letter, select Media Type as Fixed Media, press OK.
Configure RAM Disk in Windows 7
This time, Windows 7 RTM 32-bit received full 4GB (or more) RAM, you can set system virtual memory to the RAM Disk.
Click Start, then right click Computer, select Properties. In System window, click Advanced system settings, then click Settings button in Performance section, switch to Advanced tab. Click Change button in Virtual memory section, uncheck Automatically manage paging file size for all drives, give the RAM Disk a proper value, then click set and restart Windows.
Set RAM Disk as Virtual Memory in Windows 7
Now, it’s really high time for you to enjoy the high performance Windows PC!
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Great articles and it’s so helpful. I want to add your blog into my rrs reader but i can’t find the rrs address. Would you please send your address to my email? Thanks a lot!
how to uninstall this application ReadyFor4GB.exe?
Thx
@Vincentius B.
Just delete the “>128GB Memory” startup item from msconfig and it will do nothing change to your system.
when i try to go on the 128gb
my pc restart and then i can log in on safe mode
how can i fix that?
Try to use “System Restore” in safe mode, and then use RAMDisk instead of Ready For 4GB…
Great news, thanks.
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Noticed a TINY increase in linpack. Bigger increase in 3d games that are memory demanding. All this hack does is force PAE support like it would in ’server’ editions.