No Luck :
http://prikachi.com/images.php?images/704/9035704Y.png , Here is a picture how it looks like , i think that my RAm is 1066 and my processor is Boosting the ram to 1333mhz in the bios settings i cannot change the ram frequency
That screen shot shows 4GB of memory so all is well. If you want a little more obvious view click on the link "Open Resource Monitor" on the task manager screen you took a capture of and go to the memory tab. The resource monitor breaks down your memory usage a little more plainly. If its hardware reserved it will show up as grey in the resource monitor.
If its showing 3GB with 1GB hardware reservered:
msconfig, boot tab, advanced options, uncheck the maximum memory if it is limited, then reboot