I want to use my current Antec NeoPower 550w PSU (http://www.newegg.com/Product/Product.aspx?Item=N82E16817103941), which has 3x12v rails with 18a per rail, to power a new eVGA GTX 260 core 216 gpu. eVGA says it needs a minimum of a 500 Watt power supply with +12 Volt current rating of 36 Amps.
My question is... will my PSU work with this? I don't understand how PSU's and rails work. If I plug in the graphics card with the PCI-E connector, isn't that connector running on one rail that only has 18 amps? Also, isn't that rail probably being used for other components as well?
My question is... will my PSU work with this? I don't understand how PSU's and rails work. If I plug in the graphics card with the PCI-E connector, isn't that connector running on one rail that only has 18 amps? Also, isn't that rail probably being used for other components as well?