Well i was wondering what the safe voltage for my card was
More about :whats max safe voltage ati radeon 6450
June 4, 2014 2:13:47 PM
If this helps you shouldn't have any issues with this card; having this card myself I know that it consumes very little power and can be run perfectly fine on almost any sized psu. AMD recommend you have a 400W psu for this card; however I've heard of people using lower PSU's like a 250W and having no issues as the power is so small.
On hwcompare it says that the Max Wattage for the card is only 31W which is so low.
I think you might be wasting your time. You could overclock this card to the gills, and it will still get beaten silly by a HD6570 or GT630. If you're just doing this for practice or as an exercise, keep a close eye on temps as you gradually increase clocks and bump voltage, perhaps 0.05V at a time. If it either overheats and throttles, or becomes unstable or artifacts, and another 0.05V doesn't help stability, you know you've crossed the maximum limit for the card.