Windows pae performance hit

Privacy policy. Physical Address Extension PAE is a processor feature that enables x86 processors to access more than 4 GB of physical memory on capable versions of Windows.

Certain bit versions of Windows Server running on xbased systems can use PAE to access up to 64 GB or GB of physical memory, depending on the physical address size of the processor. For details, see Memory Limits for Windows Releases. The Intel Itanium and x64 processor architectures can access more than 4 GB of physical memory natively and therefore do not provide the equivalent of PAE. PAE is used only by bit versions of Windows running on xbased systems.

With PAE, the operating system moves from two-level linear address translation to three-level address translation. Instead of a linear address being split into three separate fields for indexing into memory tables, it is split into four separate fields: a 2-bit bitfield, two 9-bit bitfields, and a bit bitfield that corresponds to the page size implemented by Intel architecture 4 KB.

This is web-based browser benchmark is available for anyone to run for free. But as you can see, the 6th-gen Skylake chip also suffers from turning on VBS in the three popular Office apps. Running in the more secure mode costs as pretty penny, in fact, with PowerPoint seeing a You can see that in our results, where the performance impact is almost within the margin of error at percent on 7th-gen chips and up.

Btw many thanks for your patch. OK, I hope it will be useful, but without any warranty. Just unzip and copy into the same directory with patchpae. Ignore it. Windows 7 has not such option, it has legacy boot menu only. The scriptPAE3v26 process is completed without errors but does not activate the 4gb of memory on the windows 7 desktop.

I just installed windows 7 with latest updates kernel 6. Eugeny, attempting to patch W10 Previous versions could be patched well. Could you please look into new kernel file or publish your source code? Many THX. Original ntoskrnl. Full admin cmd and such. Running the script throws a x64 bit OS detected error and dumps me out.

No luck. Would the space matter? It took me rather too much time to find the current files. Having seen the readme unzipped from the top of the thread it never occurred to me to treat the patchpae3.

Aside from the exe downgrading my Xeons to is inside joke for those who actually owned a once upon a time and some fat fingers it actually worked.

Without memory hogs like Waterfox it may take me awhile to get programs to actually use that space, but I look forward to it with great anticipation. Thank you for your help. Is that really sane to do on my primary personal system? Are these newly required dumb commands really so obscure as to practically never execute? Will my system be stable if I do this? Not mentioned in the patch instructions. Do I continue to come up short or have you magicians solved this problem too?

Weirdness, my hyperthreading turned off. It claims to be enabled on in the BIOS. Does some part of what we did turn it off? Firefox is hitting the CPU harder than anticipated. Next question, Microsoft never recognized my failed attempts years ago to upgrade this hardware to Windows 10 and never supplied a digital key for it to install. There used to be many ways to complete a free and legal Windows 10 upgrade.

Do any of these remain? Seem the patch dont work correctly with the new win10 ver It says something like side-by-side configuration is incorrect when open programs. Any1 get the same problem?

The executable was compressed with mpress, then converted to a hex text file, which gets re-assembled at runtime to prevent possible false positive virus detections. The self executable rar file is packed with upx to reduce size,- contents can be inspected.

The other one "Windows 10 PAE " worked. You could use msconfig now and go under Boot and remove the other non-working boot entry. Who can help? My job is electrical technician. My guess is that perhaps the software was designed for Windows XP and not compatible with Windows 7? Works fine with new Windows Hey folks.

Using the right paepatch3. Thank you.. Hello again In windows 10 ver: The parameter is incorrect. Im using Ryzen X and the last working version of windows is I tried many time on the newer version of windows but always get Out of memory error or Not enough memory to do something error when the RAM consum more than 4GB.

The computer runs noticeably faster. Yes, you can. Then you can remove the non-patched option. In very rare cases, windows will not start with the patched files after a monthly update. There is no really option to fix it. Therefore, you need the standard-windows-option to start the system! Menu see first sentence of this post. And… You can use it! I read now all comments — still did not get the issue with Intel HD onboard graphic: Is it working with Intel onboard graphic HD or not??

PatchPAE3 0. Hi bro, what is new in this version? But since January-Update after selcting the nonpatched-Entry from the Boot-Menu, booting is interrupting and stating new. While selcting the patched-Entry, everything is working still fine. I remembered the build for ntoskrnl. When I select the nonpatched-Entry from the Boot-Menu, booting is interrupting and starting new. But then there is prompting now Boot-Menu and booting is ending in perfect nonpatched Modus.

But when selecting the default patched-Entry, booting always works fine and is not interrupted by a second boot. This version works fine with 20H1 as Could you tell me where you got it from so I can check for future tool updates? Instead they should look for winloadx. Just to clarify and sort out some misunderstanding. Best way updating could be deleting the PAE-Boot entry using msconfig , install the update, delete elevated rights the patched ntoskernl and patched winload, reboot and just call the script ScriptPAE3v That should do, at least it did with mine.

Does anyone have experience with a more recent driver? The patch is working perfect on my ancient laptop with core i5 M, win 10 , but doesnt work properly with 2 new PC with i7 HQ and Ryzen X from win 10 and above, it only working good with win 10 and below.

What is the problem here? Patch is installed but I am not getting my memory back. Absolutely super. I can use all my 8GB. Jan Itor: What is with ntoskrnl and winload, also Here both are still I wanna thank to the people who make this possible. Still works after Patchday Feb.

I updated windows to february patch Still working fine with 8gb of RAM and not a single issue!!! No difference in memory availability with and without PAE. File versions: ntoskrnl and ntkrnlpx both What should the patch do? Give You 8GB Ram? So you reckon that the difference between installed and usable memory is what Windows itself needs, including drivers and display controller? I have several bit Windows machines in my stable.

Does your theory contend that some installations of bit Windows occupy 1. You need chipset or newer, see Intel r Ark. I remain mystified why the limit of 3GB, which many insist is a Microsoft marketing restriction, is not relaxed by the PAE Patch, thereby affording full use of installed memory more than 3GB albeit less than 4GB. Once again, JRElliott. Thanks, evgeny. Win10 Works like a charm Win10 patchday Win7 works like a charm Win7 Build latest patchday ntkrnlpa.

Patch does not work for HP Compaq , kernel It freezes with blank screen just before splashing user login screen. Any suggestions? The problem was integrated Intel graphics card. PatchPAE3 version is still incompatbile with nvidia video card? Please, help! Now I have 8 Gb installed and no other text added such as 2. For me KB made no Problems. Installation at June 10, paepatch still working.

I installed after booting by non-patched Entry in Bootmenu, bootet again by non patched area, patched winload and ntoskrnl. Then next Start by patched Entry in Bootmenu with no problems. Small report: Works fine on Windows 10 x86 Newer driver version I dont understand how install PatchPae3, shoud i follow the tuto for PatchPae2 exactly same way??

Hello, any help would be grateful. I read almost all of the exchanges, and it is not clear for me if the patch can work with integrated Intel graphic card or not. I really would like to run this PAE mode, are there any manipulations that could work? I tried some of them suggested on the posts below, but for the moment not worked. I also tried to downgrade or update the driver for graphic card but it is up to date and to downgrade it, the result was worse.

If you have any suggestion…Thanks in advance. Enn, In my experience I could never get it working with integrated Intel graphics card on my machine. PAE patch only started working once I added external graphics card. Hello Ped, thanks for your feedback. I feared that, me too. See my previous posts to this matter reg.

My advice: Test the oldest driver you can find and which are working for your purpose. Hello Michael, thanks for your feedback. I already tried to install older driver, but the result was worse. In my case and with the project that requires more memory, I think I will try 2 other options: use an additional external graphic card and second: try to interface my bit OPC client in virtual machine with an OPC server on a bit Windows and not bit Windows.

I have tried everything that has been suggested on this forum with the integrated graphics card, with no success.

Maybe the driver you found are not old enough. The disadvantage of all this workarounds is the limitation to the old videodrivers with maybe less functionality and performance. I also would like to know. In case of integrated graphics card, I can see a reason. These devices use the higher part of the existing memory, that is why when we have 4 Go of memory, only around 3.

But this can not be the sole reason for the problem. Because the pae-paetch works actually with old driver and aktive integrated videohardware. I do not not know how I can proof this report exactly. If the reason for this problem would be the active use of the integrated videohardware than the pae-patch would never work, even not with old video-driver. But the problem also occurs with some external videografic-cards and some newer driver.

Of course I can confirm the problem and the working with old drivers only as I have reported in the past, not in general. OK, thanks for the explanation. Precisely, I needed these details, my problem is to run an XP virtual machine in Virtualbox with a sufficient amount of memory. I will try to find and older driver, but not sure to find it, I have almost no details on the driver used in this PC. So I go hunting for the driver.

Open the device-manager and go to the videografic-entry. Double-click and then open driver. There you find all informations about the used driver, version, date, hardware.

You will find a large number of links, much of them fakes, but after some hours you will have an overview about the driver-history. I dont know whether the current Winimages still has the old driver of the first Winversion or new driver.

If working use drivermax or similar software for extracting the driver and delete the installation. If not working do the same procedure with Win8 and Win7 or Vista until you find a working driver. Once you have found a working old driver you can test step for step newer driver until you have found the newest working old driver. Per aspera ad astra.

I tried all graphics card driver for the integrated graphics card, nothing to do! So we bought an Nvidia Geforce GT, installed the driver for it and it works well! Win modified with patchpae3.

All later video-driver do not work, system crashes will booting. Solution: Go to intel website, download HD system drivers, install latest bit drivers. Thank you very much. Now only MB for Hardware reserved, crazy. Downloaded PatchPAE3 from the link in the immediately previous post. Extracted the 2 files PatchPAE3.

The script completed successfully with no errors and the patch and script worked perfectly. No problems with video or anything else. Next step is to try it on otherwise similar other laptops with onboard Intel graphics. I have been looking for a successful working patch like this for several years. Today I was unfortunately unable to prevent the Win10 32bit update from Ver. This worked perfectly. I then restarted the system. MS does not seem to have changed anything fundamental in the transition to Ver.

Well dont forget to create an backup. On my computer windows crashed, after I have startet the Windows Update. No need of backup. Just get 2 different Windows entrys in bootmanager.

So You can boot original or patched windows. It stopped working for me after Win10 20H2 update. I have one of the problematic Nvidia graphic boards with te latest PAE working driver It worked for years patching again kernel and loader after every update , but after upgrading to 20H2 it stopped working botting directly with Repair mode if I try to boot the PAE kernel.

The patcher reports kernel and loader both succesfully patched. See the comments on this page for more information. Windows 10 known as windows 10 threshold 2, although this windows same built Works fine foe me on Windows 10 Home with all latest updates. No problems or error messages. Is there going to be any more work on this? This new Windows 10 version of the patch is seen as heavily infected by anti-malware scanners.

Those older versions scan completely clean. VeganChocolate You are getting confused. All is running fine like a charm now. Your patch works only for ATI card? Escape75, the file is no more available! Please, can you re-upload it on some site?!? The link is dead! Please, can you re-upload it? I think that the problem is always the same. You can try Long Path Took, it helped me with the same issues.

Are there any step by syep instructions please, or are they the same as PatchPae2? Works fine with Had you used the correct patch? Many thanks evgeny. Works well with Windows 10 , no problems. Windows 10 Build Everything is working fine. Very Happy work fine in Windows 10 Build , tank you evgeny, step by step.

Working fine on my Windows 10 Build Thank you evegeny! Viktor, you are using patchpae2. Use patchpae3. Why you are not using patch from evgeny? Kind regards. When moving PatchPae exe to c: drive: Unsupported kernel version: For , use PatchPae3, not PatchPae2. See post from evgeny, August 16, at am, in this thread. Any hint how to resolve please? Any more hints available please?

After re-patching the computer booted ok using the patched OS. Nave windows 10 kernel Anybody could help? I just updated Windows. New kernel is Works fine, too. Solved by using PaePatch3… works perfectly on My kernel Dear developer s , it is possible to resolve this issue? Yo can find PaePatch3 at post from evgeny, August 16, at am, in this thread. Is there a difference?