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How Many CPU Power Connectors To Use

C

clarsax

Junior Member
I have been running an Intel E8400 cpu on a Gigabyte EP35c-DS3R motherboard. The motherboard failed recently, and is being replaced by Gigabyte with their EP45-UD3R motherboard.
The old motherboard had a single 4-pin cpu power connector, while the replacement board has 2x4-pin connectors. My power supply, a Corsair HX650 has two 2x4-pin connectors which can be used either together or singly.

What is the proper way to connect the PSU and the motherboard? Is it to use both connectors or is one sufficient for the cpu?

Thanks for the advice.
 
Use two for overclocking or for extreme edition cpu's. It won't hurt to just use two though. Would make it easier as to not have to mess around inside the case again if the need arises.
 
If the mobo has an 2x4-pin EPS12V connector, and the PSU comes with a 4+4 (2x2 and another 2x2) then use both halves plugged into the mobo's 8-pin.
 
It doesn't really matter that much whether you're using 2x4pin EPS or 1x4pin EPS if you're just using it normally without overclocking. For overclocking you need the extra 4 pin EPS to allow more power to be supplied to the CPU without burning out a single 4 pin EPS. For normal use, it makes no difference.
 
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