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2 4-pins substitute for 1 8-pin connector on PSU.

Tags:
  • Motherboards
  • GPUs
  • 4-pin
  • Power Supplies
  • 8-pin
Last response: in Components
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September 23, 2014 8:35:47 PM

I Have a PSU that only has 1 8-pin connector, which I have a motherboard and a GPU which require 1 each. Ive notices the PSU have two 4-pin 12V connectors. Can I put two 4-pins where there should be an 8-pin connector? ( Will this work/Is this safe? )

More about : pins substitute pin connector psu

a c 150 V Motherboard
a b ) Power supply
September 23, 2014 8:46:55 PM

What is the PSU in question? If the two 4 pins snap together to make one 8 pin, that is supposed to be in the motherboard CPU header.
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a c 1517 V Motherboard
a c 2469 ) Power supply
September 23, 2014 8:57:24 PM

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a c 150 V Motherboard
a b ) Power supply
September 23, 2014 8:57:45 PM

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September 23, 2014 9:00:37 PM

Gam3r01 said:
What is the PSU in question? If the two 4 pins snap together to make one 8 pin, that is supposed to be in the motherboard CPU header.


Its a Dell Kilowatt H1000E-01, I found that it only had one 4-pin sorry, Ive heard some people are able to just pop that in and sometimes it works
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a c 1517 V Motherboard
a c 2469 ) Power supply
September 23, 2014 9:01:49 PM

Most of the time 1 - 4 pin will work.
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September 23, 2014 9:12:37 PM

SR-71 Blackbird said:
Most of the time 1 - 4 pin will work.


Ill give it a run, see how it goes, is there a particular place I should put it ( left side/right side? )

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a c 1517 V Motherboard
a c 2469 ) Power supply
September 23, 2014 9:17:14 PM



Left pic shows you how. :D 
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a c 178 V Motherboard
a b ) Power supply
September 23, 2014 9:33:45 PM

Super_Stinger said:
I Have a PSU that only has 1 8-pin connector, which I have a motherboard and a GPU which require 1 each. Ive notices the PSU have two 4-pin 12V connectors. Can I put two 4-pins where there should be an 8-pin connector? ( Will this work/Is this safe? )


Yes that will work just fine.

The 8pin/4pin confusion is a result of overlap between the ATX12V PSU standard and the EPS PSU standard. Both the ATX12V and EPS standards specify a 24 pin main power connector. In addition to this, ATX specifies a single secondary 4 pin auxiliary power connector. EPS on the other hand specifies one or more 8 pin auxiliary power connectors and an optional 4 pin tertiary connector.

The secondary connectors are key compatible, which allows a 4 pin ATX male (from the PSU) to be inserted into half of the 8 pin EPS secondary or the 4 pin EPS tertiary (if present, only high end motherboards have this).

Most motherboard and PSU manufacturers have designed their products to accommodate both standards. Motherboards typically have an 8 pin secondary which can be used with ATX and EPS PSUs, and PSU manufacturers often split a cable into a 4+4 which can be used for either an ATX motherboard or an EPS motherboard.

Fun stuff

EDIT: As a side note, the 8 pin EPS secondary connector is not the same as the 8 pin PCIe connector. They are keyed differently and cannot be used interchangeably.
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