Ok, an update. I will be using this on a 300w power supply. the card needs to be run on a 300-350w power supply for the minimum. also, it states that it needs about 18-20 amps on the +12v rail, while i only have 15. while i may be able to run the card, would i have problems with sudden power-offs or blowing capacitors? i really dont wanna destroy the card and/or motherboard, or my psu.