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Windows 7: Problem using 4gb in 64 bits

13 May 2009   #1
Ajulian

Windows 7 Ultimate 64 BITS
 
 
Problem using 4gb in 64 bits

Hello guys !

I have 4gb ddr2 in my computer, but the system shows something weird

It says that i have 4gb, but only 3gb usable...
I'm using a GA-945GCM-S2C motheboard that supports the 4gb

anyone knows a solution for this?

thanks !


My System SpecsSystem Spec
.

13 May 2009   #2
Reckon

Windows Vista Ultimate x64 - W7 Beta Build 7000
 
 

Hello, could you please make a screenshot of your system properties showing that?


thanks
My System SpecsSystem Spec
13 May 2009   #3
Ajulian

Windows 7 Ultimate 64 BITS
 
 

Sure my friend

here the screenshot from my system properties

-sysproper.jpg


My System SpecsSystem Spec
.


14 May 2009   #4
Reckon

Windows Vista Ultimate x64 - W7 Beta Build 7000
 
 

Thanks for the info. I already reported this bug to Microsoft, but I didn't take any screenshot of my system properties dialog box when I saw that. I've been unable to reproduce it again. If you don't mind, I'm sending your screenshot to them.

Before solving the problem, could you check in the Task Manager your available RAM and post another screenshot here, please?

To solve your issue, just set PAE as ForceEnable in the BCDEdit. It may sound weird, but it was the only thing worked for me. In accordance to MS, the Physical Address Extension only works for 32 bits version of Windows, but... worked for me in W7 x64 RC. Something might be wrong there.

If you don't know how, open a cmd prompt (admin rights), type bcdedit.exe /SET PAE ForceEnable and reboot.

You should see then in both places, system properties and in the Task Manager your 4 gigabytes available.

Regards.
My System SpecsSystem Spec
14 May 2009   #5
Ajulian

Windows 7 Ultimate 64 BITS
 
 

Hi Reckon,
Good morning and thanks for the help.

So, this is a bug?
the main reason for me to get 64 bits version was that i have those 4gb that i cant use in 32 bits.

Im working now, but when i get home i'll try to do that.
After you post i was reading about that command that you told me to use...he will force my PC to "see" the 4gb right ? but...really works in 64 bits? i was reading that this is for 32 bits version, as you say in your comment too...if it works, is another bug? hehe a god bug, i guess

Anyway
I hope it works !^^
i will let you know in this topic

And sure, you can send this screenshot
thanks for the help

(and sorry for my english )
My System SpecsSystem Spec
14 May 2009   #6
Uber Philf

W7 RTM Ultimate x64
 
 

Hey guys, im having the exact same problem, just that mine displays 2.97gb usable.
I tried what Reckon said, and it hasn't changed at all, it still displays 2.97gb , any other solutions?

Enzo.
My System SpecsSystem Spec
14 May 2009   #7
Ajulian

Windows 7 Ultimate 64 BITS
 
 

When I begin to search a solution for this problem, I heard once that update the BIOS may help, but I never tried
May be a solution...i dont know...
I’ll try this too if Reckon says doesn’t work for me
My System SpecsSystem Spec
14 May 2009   #8
Reckon

Windows Vista Ultimate x64 - W7 Beta Build 7000
 
 

Try to look at any remapping memory options in the BIOS.

Regards
My System SpecsSystem Spec
14 May 2009   #9
Reckon

Windows Vista Ultimate x64 - W7 Beta Build 7000
 
 

Quote   Quote: Originally Posted by ENZO View Post
Hey guys, im having the exact same problem, just that mine displays 2.97gb usable.
I tried what Reckon said, and it hasn't changed at all, it still displays 2.97gb , any other solutions?

Enzo.
Enzo, could you please post a screenshot of your system properties window? Also, could you check available memory in the task bar?

Thanks
My System SpecsSystem Spec
14 May 2009   #10
Uber Philf

W7 RTM Ultimate x64
 
 

yeahp here :

My System SpecsSystem Spec
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 Problem using 4gb in 64 bits




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