why does my pc show

[deadpoolmx55]

why does my pc show i have 3 gigs of ram installed when i have 5 installed? and is there a way to get it to use all 5 gigs? when i right click on my computer and go to properties it says i have 3 gigs installed

OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 3 Build 2600
OS Manufacturer Microsoft Corporation
System Name NORFOLK-C20CE9D
System Manufacturer Hewlett-Packard
System Model HP Compaq dc5750 Microtower
System Type X86-based PC
Processor x86 Family 15 Model 67 Stepping 3 AuthenticAMD ~2992 Mhz
BIOS Version/Date Hewlett-Packard 786E3 v02.29, 8/14/2007
SMBIOS Version 2.4
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "5.1.2600.5512 (xpsp.080413-2111)"
User Name NORFOLK-C20CE9D\jcal
Time Zone Eastern Daylight Time
Total Physical Memory 5,121.00 MB
Available Physical Memory 2.09 GB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 6.84 GB
Page File C:\pagefile.sys

 

[CRO]

You don't say what mixture of memory sticks you have. Is it 1 x 2 Ghz and 1 x 3Ghz RAM or something different? Normally you shoud use identical RAM, i.e. 2 x 2 GHZ or 1 x 4 Ghz depending on what our motherboard will handle.
However your computer is showing:

Total Physical Memory 5,121.00 MB
Available Physical Memory 2.09 GB

So, your PC is recognising the 5Ghz. You need to look at your task manager or type in msconfig in your Start - Run panel and see what is chewing up your memory.

Bob (CRO)

 

[deadpoolmx55]

3x1 gigs and 1x2 gigs

 

[deadpoolmx55]

does it help if i tell you im running a 32 bit os on a 64 bit PC?

 

[ZecMurphy]

Looking at the other information you've listed, you are only running a 32bit version of Windows XP. As such, it will only be able to see 3GB (3.7GB if I remember right) of RAM. You can put all you like in, however only 3GB will be accessible/usable.

If you want to be able to use more than 3GB of RAM, you will need to upgrade to a 64bit operating system.

Regards

 

[martinvk]

You do realize that there are limits to how much memory Windows can see?
See this page for more. Below is for XP
[h=3]Physical Memory Limits: Windows XP[/h] The following table specifies the limits on physical memory for Windows XP.

Version	Limit on X86	Limit on X64	Limit on IA64
Windows XP	4 GB	128 GB	128 GB (not supported)
Windows XP Starter Edition	512 MB	N/A	N/A

 

[tomurban]

You do realize that there are limits to how much memory Windows can see?
See this page for more. Below is for XP
Physical Memory Limits: Windows XP

The following table specifies the limits on physical memory for Windows XP.

Version	Limit on X86	Limit on X64	Limit on IA64
Windows XP	4 GB	128 GB	128 GB (not supported)
Windows XP Starter Edition	512 MB	N/A	N/A

This may help if you have WIN7Pro or Ultimate (32bit). http://forums.auran.com/trainz/showthread.php?82596-Performance-Increase-For-All