Well so here is my problem. ok so since the Dell E310 model has only PCI and PCIe 1x i decided to upgrade to a new and better PCI card since the E310 model came with this nvidia 5500 fx. I bought an NVIDIA Geforce 6200 256MB GDDR2 PCI Graphics card and put it in. Now, I boot the PC... but the PC wont even boot! The PC flashed a yellow light on and off. So i said hey this PSU only has 230W. So I said hey maybe its the PSU that needs more power! But i was wrong even with a 450W PSU the PC STILL wont boot! and still a yellow light flashing on and off. So i change it back to the old 5500FX and wallah!!! the PC booted -_- So i think the problem is not the PSU. but wat else could it be!!! BTW i tried first with a Geforce 6200 because i didnt wanted to risk buying the nvidia Geforce 9400 PCI. But now that this 6200 card doesnt even work im afraid to buy the nVIDIA GeForce 9400 GT cuz it might not work. I've done some research on this 6200 card and many ppl say that this card is "defective" What might be this problem that wont let me boot my PC with this card? Should i risk buying the nVIDIA GeForce 9400 GT and try it? BTw here is my PC info: Intel(R) Pentium(R) 4 CPU 3.06GHz 3.06GHz, 1.99 GB of RAM Any help would be much appreciated!