I have a Dell, and last year the fan for my power supply started to give out. I was still under warranty, so I got a free replacement. My replacement is getting pretty loud again, and since my warranty has expired, I really want to get a silent power supply. However, apparently the power supply for my computer can only be supplied through Dell. Does anyone know how that works? Does that mean that if I get a power supply from somewhere else and plug my components in, it'll fry everything? Or will the motherboard not recognize it? Or is Dell lying and being greedy?