If your specs say that the system can support 4 GB of RAM... then the only way to achieve that with 4 sockets is to install 4 1GB RAM chips.
Having 4GB of ram has absolutely nothing to do with burning up your CPU. (Unless you try putting the new chips in with the computer running or something silly like that)
In reality... having 4GB of RAM will help other things... It will decrease hard drive access, therefore possibly cooling down your Hard Drive Temperature. This is due to the fact that your computer will not have to access the Windows Paging File as often. The paging file is hard drive space designed to act as RAM at those moments when your computer does not actually have enough physical RAM to complete the current task. Thus, with more RAM... the less often you will access the Paging File. This also explains why extra RAM makes a computer seem to run faster... Access to physical RAM is in the Nanoseconds range... while accessing the Paging File is in the Milliseconds range.
RAM=FAST
PAGING FILE=SLOW
Or at least that is a simple explanation.
Adding RAM is the single most important upgrade you can do to a PC... and there is no danger involved..
Since you have a Compaq Computer... just make sure that you buy RAM that has been tested to work with your model... Compaq is Notorious for needing specific manufacturer's RAM chips. Just any old chip off the shelf might not work properly.
ok...thanks for replying man..well i want to have more ram coz i want to render my things faster..do you think it wil lhelp???? thanks!