I know there are quite a few power supply questions on this forum but I think mine needs specific attention. I have 2 hard drives running 512 gigs of memory. A DVD drive, dual core processor, 320 MB Nvidia e-Geforce 8800 graphics card, 2 gigs of RAM. I use a 450 watt power supply but it seems the performance I get out of games is mediocre. With 45 fps in Counter Strike Source and just get inconsistent performance in any game including The Sims 2, Battlefield 2, Medieval 2 Total war, Age of Empires 3, Quake etc.. I asked my dad, who is an old school computer builder , tells me anything more is unnecessary. I tried doing research on my own and this is the first time I actually asked my question to anyone else.
Do I need a larger power supply? Any suggestions at all?