Hi all, I have a dell dimension 8300 p4 3.0 (3yrs old) 250watt psu which i recently upgraded to 1.5gig ram and a BFG 256mb 7800 geforce GSOC AGP (No PCI E slot). Now when i was doing this some board members advised that this graphics card would not work without a PSU upgrade. I purchased the card with a view to upgrading the PSU, however when i tried the card with my old psu the card seems to work fine, the system has never crashed (which i thought it might). My questions are, why is the card running if even the box said it needed 400watt at least? Am i getting the most out of the card, i normally turn all graphics settings upto max, my max monitor res is 1152 x 864 which i use. I am just wondering if i am getting the most out of the card. At present all i play is COD2, will this push the card. Is their a quick way to test my system now to compare it with results i should expect to get. Thank You in advance.