6pin to 8pin or Molex to 8pin -seasonic s12ii 520w - sapphire r9 280x vapor X

swapero

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Aug 9, 2013
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The sapphire r9 280x Vapor X requires a dual 8 pin

Should i use the Molex to 8pin which is included in the GPU box?

Or should i buy a 8pin to 6pin adapter?

Additional Info
RIG
- Intel i3 3210 3.2ghz
- seasonic s12ii 520w
- 2x 4gb RAM 1600mhz
- asrock h61m-vs r2.0
- 160gb HDD SATA
- WIndows 7 64bit

I do not have an enough money for an upgrade :(
 

swapero

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Aug 9, 2013
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one last question mate i had a lot of contradicting answers ( friends, forums, experts ) i just wanna ask your thoughts about this one .

Can my psu run this gpu?
 

swapero

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Aug 9, 2013
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So its ok to use these right?its the one that came from the box, just wanna make sure i have the correct molex

35bh93q.jpg


6syv5e.jpg


And my current psu can run the full pc load together with the vapox r9 280x??

Im so SORRY if i have a lot of question im really a noob at pc building :(
 



Im not talking about the amount of 12v pinouts on a pci express socket ,Im talking about splitting the load over more physical cables which imo is more important.
the seasonic has decent enough but standard 18 gauge wiring,the sapphire twin molex to 8 pin has 24 gauge wiring.
1 molex to 1 string of molex cables & the other to the other string coming from the psu splits the load over more physical cables coming from the psu itself - thats the main reason I suggested using it - the other reason is it comes with the card itself,is good quality,& saves buying a seperate cable which may/may not be decent quality.

 



yes - you have 2 seperate strings of molex cables on the psu with 3 connectors on each - plug each of those molex plugs to a seperate cable string - in all honesty it wouldnt matter either way but Its what I would do personally - theres no reason not to & it minimises draw on each set of cables.

your psu is good enough,your cpu is sub 70w & in all honesty there is no need for twin 8 pins on any 280x - it will never draw that amount of wattage.




 


Yes it is fine.
 


when using a molex for PCIe you are only using 1 yellow wire + and one black- . You are not at all using the red 5 volt wire or its ground! So each molex is only using 2 wires from the PSU 2+2=4 while the single 6 pin PCIe is using 6 total wires.
 


Ill apologise & concede youre right - I was wrongly assuming that the 8+6 pin from the psu shared a lone cable when infact they are entirely seperate cables (I should have known this with it being a seasonic model)
 

swapero

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Aug 9, 2013
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another noob questions

1. I need to plug BOTH of the molex to the psu then connect the 8pin end to the GPU right?

2. There are 2 8-pin slots on the R9 280x Vapor X, Which slot should i connect the native 8pin of the PSU?
- And which slot should i connect the 8-pin end of molex adapater?
- It doesn't matter which slots i use?

Im really sorry i know im bit annoying :'(