Corsair RM550 power supply Evga GTX 760 SC

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Shayne Murray

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Jun 3, 2014
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The specs on the Corsair RM550 say 2 X 6+2 connectors but show only one cable and one PCI-E power slot and the 4+4 CPU power.
The cable looks like it has two 6+2 connections on the "single" PCI-E power connector.

Can i use the ONE PCI-E power cable with 2 X 6+2 connectors on the GTX760 4 and 6 pin power requirements?
 
Solution
Abmario
Corsair RM550 should have:
(a.) 6+2-pin PCIe (you should have 2 nos. according to the label)
(b.) Serial ATA plug
(c.) 4-pin (FDD)
(d.) +12V 4+4-pin (EPS12V)
(e.) 4-pin (HDD/ODD)
and so on...

If only you have a single cable like item (a), that's fine as long as it has short loop like the picture I shared earlier...
Then you can still connect it to your graphic card (like GTX760) that requires 6-pin and 8-pin connector.. its just a short loop or like a jumper cable from the same voltage in same rail of psu.

In this picture below, though the connector doesn't looks like your GTX760, still theoretically it the same
z69clm5.jpg


Theoretically, the short loop or jumper will have the same amount of amperage...
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Abmario

Abmario

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Oct 1, 2014
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Do you mean the 6+2-pin with short loop? You mean EVGA Gtx760 requires 6-pin & 8-pin (6+2-pin)?
If the PCIe connect has 6+2-pin (that make it 8-pin) with short loop (6-pin) like on the picture. You can use this single cable to you card.

pcie-8.jpg

 
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Shayne Murray

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Jun 3, 2014
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4,510


GPU needs a 8 pin AND 6 pin PCI-E power connector.
The power Supply looks to only have one 8 PCI-E power connector port with a 4+4 CPU port.
The power supply's PCI-E cable looks like the one you shared, but the last 6 pin has the extra 2 pin with it.

So the big question is, with that cable only going into ONE PCI-e port on the power supply.
Can it still the proper power need for TWO ports on the GPU?
And how come if only one power cord can supply the GPU, why does the Power even need to split to the two ports on the GPU?

Thank you for your response...
 
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Abmario

Abmario

Reputable
Oct 1, 2014
525
1
5,360
Corsair RM550 should have:
(a.) 6+2-pin PCIe (you should have 2 nos. according to the label)
(b.) Serial ATA plug
(c.) 4-pin (FDD)
(d.) +12V 4+4-pin (EPS12V)
(e.) 4-pin (HDD/ODD)
and so on...

If only you have a single cable like item (a), that's fine as long as it has short loop like the picture I shared earlier...
Then you can still connect it to your graphic card (like GTX760) that requires 6-pin and 8-pin connector.. its just a short loop or like a jumper cable from the same voltage in same rail of psu.

In this picture below, though the connector doesn't looks like your GTX760, still theoretically it the same
z69clm5.jpg


Theoretically, the short loop or jumper will have the same amount of amperage through this connection. 6+2 wire connecting it to a 6-pin socket won't overload anything as long as your psu can handle the required power, in your case according to the label it has 2 PCIe plugs.. I am not sure why you got one. Anyway, let say:
6-pin plug has max. = 75W,
Pcie Slot (motherboard) = 75w
8-pin (or 2+6-pin) = 150w
In your case, GTX760 requires 6-pin (75w) + 8-pin (150w) & Slot (75w). Total Max 300w.. But actually GTX760 power consumption ranging to 168w under load. http://www.guru3d.com/articles_pages/geforce_gtx_760_evga_superclocked_acx_review,5.html

Different gfx card designers have their own boards design, factory over-clocked GPUs and cooling system.
The power your graphics card usage varies from the reference power requirements.

 
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