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Power Supply Connector

I have the Antec HCG 750m, and it contains two single 12V Rails. The power supply comes with two of these PCIe cords with two PCIe connectors:
http://imageshack.com/a/img843/4596/84hpi.jpg
Currently I have one of these cords connected to the 12V1 Rail with both PCIe connectors attached to my graphics card like so:
http://imageshack.com/a/img836/8494/6nhd.jpg

My graphics card requires 42 Amps, and each 12V rail has 40Amps (total of 62Amps). What is the best way to connect the graphics card to the power supply:
1. Using one cord connected to the 12V1 Rail (or 12V2 rail?) -> Like I have done already
2. Using two cords both connected to 12V1 Rail (or 12V2 rail?)
3. Using two cords one on the 12V1 rail and one on the 12V2 rail
2 answers Last reply Best Answer
More about power supply connector
  1. Using one cord connected to the 12V1 Rail (or 12V2 rail?) -> Like I have done already < Yes

    You can also use separate cords , but I never do.
  2. Best answer
    Hi, Just keep it as is. MBU & CPU are on 12V2 and having the PCIe on 12V1 is right. part of the 42A are coming via the MBU cable.
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