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Windows 7: only 2.5 gigs ram in 64 bit?

20 Dec 2009   #1

Windows 7 Ultimate 64 Bit
 
 
only 2.5 gigs ram in 64 bit?

Hey Guys,
I was going to buy Windows 7 anyway, so i decided to get 64bit so i could use all of the ram on my computer (4gigs, plus my SLi video cards have 500mb or 1gig each, can't remember)
Since vista 32bit could only use 3.5 gigs

but now to my dismay it seems like i can still only use 2.5 gigs of ram

Imageshack - 66298765
Imageshack - 86877221

Anyone know how to fix this?
I read something about remapping ram or something but how do you do that or how can you tell if it is possible?
Thanks for any help

My System SpecsSystem Spec
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20 Dec 2009   #2

Windows 7 Home Premium x64 SP1
 
 

Do your BIOS see all 4 GB of RAM? If not, I may suggest you a BIOS update.
My System SpecsSystem Spec
20 Dec 2009   #3

W7 RTM Ultimate x64
 
 

Have you changed anything in MSConfig?
My System SpecsSystem Spec
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20 Dec 2009   #4

Windows 7 Ultimate x64
 
 

open task manager, click resource monitor, click memory tab to see exactly how your ram is being used.

you have 4 installed, and can use 2.5... the operating system is going to use part of that 4 right off the bat--more or less depending upon what you have starting automatically (services / programs).
My System SpecsSystem Spec
20 Dec 2009   #5

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

If you can get into bios, there may be a setting for max cpu or max ram, uncheck the box.

Before you attempt anything like this, make a system image.
My System SpecsSystem Spec
20 Dec 2009   #6

Windows 7 Ultimate 64 Bit
 
 

@mpcrsc562:
The second picture is of the task manager
the resource manager shows the same thing
4 gigs installed, total ram is 2.5gigs

@
Uber Philf
Nope, just installed it about an hour ago havent messed with anything really

@
Lebon14
Gonna check right now
My System SpecsSystem Spec
20 Dec 2009   #7

Windows 7 Ultimate 64 Bit
 
 

Just checked bios-
it says total recognized ram is 4000
but total usable ram is 2500
and there are no options about ram anywhere

EDIT:
also, i have not changed anything in msconfig (i just installed windows 7 about an hour ago, i havent changed any system settings really)
and the second picture in my first post IS of task manager
My System SpecsSystem Spec
20 Dec 2009   #8

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

Just a guess, but you did not install additional ram, did you?
My System SpecsSystem Spec
20 Dec 2009   #9

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by mpcrsc562 View Post
open task manager, click resource monitor, click memory tab to see exactly how your ram is being used.

you have 4 installed, and can use 2.5... the operating system is going to use part of that 4 right off the bat--more or less depending upon what you have starting automatically (services / programs).

it's a matter of math...
you have 4 installed...
you have a certain amount in use...
you have a certain amount modified...
you have a certain amount in stand by...
and you have a certain amount free...
not knowing what is running on your system at any specific time, it seems o.k. to me that you'd have 2.5 ready and available to be used.
(snapshot of my system running -- and according to the pic, i have 8 installed, but only 5.9 available. that doesn't mean i'm not using my "whole 8." it's just out of my eight, i have access to 5.9)
My System SpecsSystem Spec
20 Dec 2009   #10

Windows 7 Ultimate 64 Bit
 
 

@richc46:
did not install? what do you mean?
i have 2x2gb ram cards
@
mpcrsc562
I know, but both your total and installed are 8000
my installed is 4000 but my total is 2500
heres another pic for clarification

http://img138.imageshack.us/i/79250935.png/
My System SpecsSystem Spec
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 only 2.5 gigs ram in 64 bit?




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