Running windows 7 x64
got 4GB (2 x 2GB) of this..
TWIN2X4096-6400C4DHX PC2-6400 4GB Kit 4-4-4-12 240pin DIMM
Is it going to be worthwhile putting in another kit making it 8GB ?
decided not to upgrade my PC... gonna buy SSD and some more RAM (perhaps)
From your Picture I would not waste money buying more RAM. Extra RAM will only increase performance if your system is paging due to insufficient RAM. With Windows 7 you cannot disable the Page file; and even if you do it will not significantly improve performance (if it increases performance at all).
Anyway, from your pic you can see that you have four gigs of RAM installed, almost two gigs available and almost one gig free.
Available RAM is RAM that has been written to, but is currently not actively used, i.e. available for an application to use if necessary. Free RAM has no useful information in it and can also be used. So you essentially have almost 3 gigs of free RAM.
A better way to tell if you need more RAM is to download process explorer from sysinternals:
http://technet.microsoft.com/en-gb/sysinternals/bb896653.aspx. Run it and select
View >
System Info. This will bring up a task manager interface similar to WinXP (which was better IMHO).
Look at the
Commit Charge (K) info. Commit charge is a combination of RAM and paging file.
Limit is the most memory (RAM and pagefile) that your system can see.
Current is the current usage (RAM and pagefile).
Peak is the highest amount of memory used since your PC was started, again RAM and virtual memory.
If the Peak Commit Charge is lower than your physical RAM, then putting in more RAM will not help your PC at all (since your PC has never used up all available RAM)....