is my 500 watt antec earthwatts psu good enough for my 4870 512mb gddr5? because it ran at first but when i put it back into my computer and try to power it on, power fluctuates and then it satys on but i have no video. Its a Visiontek brand 4870. Any answers would be helpful
Should be enough. Might even be enough for a second 4870 but that might be pushing it. The good thing is, it has overvolt protection, so if it activates then the system will switch itself off and you'll know you need a beefier power supply.