missing ram?

[altvic]

I've just bought some ram (upgraded from 512 to 1g) but the print out below says: Total Physical Memory 1,024.00 MB
Available Physical Memory 511.14 MB
Does this mean that one of the memory modules is not being recognised? and that I'd have been better to stay at 512?

Thanks

altvic

OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 2 Build 2600
OS Manufacturer Microsoft Corporation
System Name OFFICE
System Manufacturer NVIDIA
System Model AWRDACPI
System Type X86-based PC
Processor x86 Family 6 Model 8 Stepping 1 AuthenticAMD ~2079 Mhz
BIOS Version/Date Phoenix Technologies, LTD 6.00 PG, 02/05/2003
SMBIOS Version 2.2
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United Kingdom
Hardware Abstraction Layer Version = "5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)"
User Name OFFICE\Administrator
Time Zone GMT Standard Time
Total Physical Memory 1,024.00 MB
Available Physical Memory 511.14 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 2.34 GB
Page File C:\pagefile.sys

 

[Trizoy]

It means you have a little more than half the ram in use... Any programs open?

 

[altvic]

zonealarm is the main one