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- 3 Sep 2014
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Just been readings 'Tom's Hardware' forum and I want to know if the following information is correct.
"To figure out how many amps you need on the 12 volt rail use this formula (watts / 12 = amps) so if the card requires 650 watts simply divide 650 by 12. This formula only works for 12 volt for different voltages there are different dividers".
The Graphics card I will be using will be a MSI R9 280 3GB. The TDP is 250 Watt.
So 250 watts / 12 volts = 20.83 rounded to 21 Amps on 12 volts.
Am I correct looking at PSU information showing +12v1 and +12v2 to determine the correct amount of amps?
Cheers.
"To figure out how many amps you need on the 12 volt rail use this formula (watts / 12 = amps) so if the card requires 650 watts simply divide 650 by 12. This formula only works for 12 volt for different voltages there are different dividers".
The Graphics card I will be using will be a MSI R9 280 3GB. The TDP is 250 Watt.
So 250 watts / 12 volts = 20.83 rounded to 21 Amps on 12 volts.
Am I correct looking at PSU information showing +12v1 and +12v2 to determine the correct amount of amps?
Cheers.