PCI Express 6-pin connector

rcc

Honorable
Dec 31, 2013
13
0
10,510
Greetings,

Which rail does the PCI Express 6-pin connector draw power from ? The reason I'm asking this is because my PSU is 375 Watts and has 18 Amps on 12V rail and it seems unlikely that there would be enough wattage on 12 V rail to support this connector.
 
Solution
The PCI-e plugs are only 12V and ground pins, almost all of the power drawn by a modern system is from the 12V rail, the CPU and GPU both get their power from there, the 5V and 3.3V rails are now just for assisting circuitry.