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Windows 7: Cant Enable PAE mode

18 Apr 2011   #1

Windows 7 Ultimate x64
 
 
Cant Enable PAE mode

i've tried what Microsoft suggests. i've Tried EasyBCD but still it snot enabled, and i still show 3.5GB of 4GB usable. (where thers 512MB Hardware reserved) Any idea how to force this to work?

My System SpecsSystem Spec
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18 Apr 2011   #2

Windows 7 Home Premium 64bit
 
 

I'm afraid 32 bit windows 7 has a 3.5GB RAM limit no matter what. The limits then vary working your way up the 64 bit version ladder. (the unofficial PAE stuff for Windows 7 is unstable)

Actually, scratch that. Apparently the limit is 4GB for all 32 bit versions but starter :/
My System SpecsSystem Spec
18 Apr 2011   #3

Windows 7 Home Premium 64bit
 
 

Apologies for my confusion :/
You may find this handy, as it sound like the same issue: The usable memory may be less than the installed memory on Windows 7-based computers
My System SpecsSystem Spec
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18 Apr 2011   #4

Windows 7 Ultimate x64
 
 

i gues im stick as i dont have a memory mapping function in my BIOS. and theres no new updates :/
My System SpecsSystem Spec
18 Apr 2011   #5

Windows 7 Home Premium 64bit
 
 

Guess so, sorry :/
Upgrading to 64 bit may fix it, but that costs money and you'd need to do a completely fresh install :/
My System SpecsSystem Spec
18 Apr 2011   #6
Microsoft MVP

Win 7 Ultimate x64
 
 

All 4 GB should be available if you install 64 bit as according to the specs for your motherboard (assuming the one in your specs),

ECS Web Site

it supports up to 16 GB total (2x8 GB). Also as far as the memory remapping, if I'm reading the manual for it this is the setting (worded differently than what would be expected),

Cant Enable PAE mode-memoconfig.png

and is enabled by default.


My System SpecsSystem Spec
18 Apr 2011   #7

Windows
 
 

PAE is enabled by default (DEP), but Microsoft has crippled it, so it cannot help you.
My System SpecsSystem Spec
18 Apr 2011   #8

Windows 8.1 Pro (x64)
 
 

Quote   Quote: Originally Posted by pallesenw View Post
PAE is enabled by default (DEP), but Microsoft has crippled it, so it cannot help you.
It would not help in this situation either way. The hardware will still take the 512 MB of address space. Windows does not control how the address space is allocated, that is left to the hardware. Its out of its hands.
My System SpecsSystem Spec
19 Apr 2011   #9

Windows
 
 

I haven't checked the specs, but according to stormy13 the hardware supports > 4GB plus memory remapping, so a non-crippled PAE kernel can use all of it.
My System SpecsSystem Spec
19 Apr 2011   #10

Windows 7 Ultimate x64
 
 

i got it enabled so now i just need an patched PAE Kernel then.:/ and i know its at the windows 7 side. i've tested and Ran 4gb full under XP before with this board ( awhile back my bro lost ram once before sp i yanked the 2nd 2GB stick back then and put it in his PC) but this was before Windows 7 (well i got my copy in october 09 at the Detroit's "The New Efficency" seminar)
My System SpecsSystem Spec
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 Cant Enable PAE mode




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