Windows 7 Ultimate 64 bit, recognizes 4gb of ram, only 2.93gb usable.

CGV2222

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So, here's my problem, this computer used to run Windows XP 32bit with 4gb of ram installed, 2.93gb usable was understandable then because it was 32bit, now i'm using 7 ultimate 64 bit and it still gives 2.93gb usable.

http://i.imgur.com/SA9Ej.jpg <-- My resource manager, i added up all the ram that it is being used and its is nearly being entirely used, a few mb not being used, but whats going on with the system control panel, i've also noticed that the computer is running slower then my mates, who is basically the exact same thing (other then the graphic's card, his is worse)

OKAY! I figured out my problem, its probably the RAM-slots, heres my problem now, i have no idea what order to put them in so it'll utilize the entire 2gb that's being "reserved", could someone please help me figure out what order i'm supposed to put them in and simplify it because i'm really not tech-savy, here is my stats from belarc.

Windows 7 Ultimate (x64) (build 7600)
Install Language: English (United States)
System Locale: English (United States)
Installed: 8/9/2012 5:12:14 AM
Board: ASUSTeK Computer INC. P5B Rev 1.xx
Bus Clock: 200 megahertz
BIOS: American Megatrends Inc. 1705 11/01/2007
3008 Megabytes Usable Installed Memory

Slot 'DIMM0' has 1024 MB
Slot 'DIMM1' has 1024 MB
Slot 'DIMM2' has 1024 MB
Slot 'DIMM3' has 1024 MB

and yes, the advanced options for boot are unchecked.
 
Last edited:

My Computer My Computer

At a glance

Windows 7 64 bit
OS
Windows 7 64 bit
If your BIOS shows 4 GB then it has nothing to do with slots or ordering. My guess is that you may need to go through your BIOS and enable memory mapping, or a similar feature to allow the system to address then 4 GB.
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64 SP1Intel Core i7-260012 GB Patriot Extreme DDR3-1333Nvidia GTX 470
OS
Windows 7 Ultimate x64 SP1
CPU
Intel Core i7-2600
Motherboard
Gigabyte GA-P67A-UD3P-B3
Memory
12 GB Patriot Extreme DDR3-1333
Graphics Card(s)
Nvidia GTX 470
Monitor(s) Displays
Dell UltraSharp 2209WA
Hard Drives
OCZ Agility3 240 GB, WD5001AALS, WD7501AALS
PSU
OCZ ModStream 700W
Case
CoolerMaster HAF 912 Advanced
Cooling
CoolerMaster Hyper 212 Plus
All i can find is PAE mode and DEP mode, if i go into the BIOS, should Enable Memory Mapping (yes/no) something like that or do i have to actually configure a bunch of stuff?
 

My Computer My Computer

At a glance

Windows 7 64 bit
OS
Windows 7 64 bit
Oh crap! I just did it on my P5B motherboard and now the entire 4gb is in use and theres 2gb free RAM in resource moniter, thank you so much! +rep!
 

My Computer My Computer

At a glance

Windows 7 64 bit
OS
Windows 7 64 bit
You're welcome....glad it worked!
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64 SP1Intel Core i7-260012 GB Patriot Extreme DDR3-1333Nvidia GTX 470
OS
Windows 7 Ultimate x64 SP1
CPU
Intel Core i7-2600
Motherboard
Gigabyte GA-P67A-UD3P-B3
Memory
12 GB Patriot Extreme DDR3-1333
Graphics Card(s)
Nvidia GTX 470
Monitor(s) Displays
Dell UltraSharp 2209WA
Hard Drives
OCZ Agility3 240 GB, WD5001AALS, WD7501AALS
PSU
OCZ ModStream 700W
Case
CoolerMaster HAF 912 Advanced
Cooling
CoolerMaster Hyper 212 Plus
Oh crap! I just did it on my P5B motherboard and now the entire 4gb is in use and theres 2gb free RAM in resource moniter, thank you so much! +rep!

Hi CGV2222, can you kindly show us how as I have same m/b the P5B and also since I've installed new RAM it only shows 2.87 out of my 5GB, thanks!
 

My Computer My Computer

At a glance

Windows 7 32-bitIntel 2x Core2Duo 6600 @2.40Ghz5GBNvidia GeForce 210 1GB
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Asus
OS
Windows 7 32-bit
CPU
Intel 2x Core2Duo 6600 @2.40Ghz
Motherboard
ASUS P5B
Memory
5GB
Graphics Card(s)
Nvidia GeForce 210 1GB
Hard Drives
WD 1TB
Antivirus
AVG
Browser
Firefox
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