Dual 8 pins GPU on Delta Serverpower 550w

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AmuroAC

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Jul 17, 2017
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I have bought a EVGA FTW 1080 which require 2 8pins pcie connector.

However, my old PSU, Delta Serverpower 550w, got only 2 6pins connectors. The PSU spec said it has 3 sets of +12v of 18A each set. Is it enough to run this GPU? and can i get 2 6to8pins adaptor to run the card?

Thanks in advance.
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Solution
Barty1884
Just because it has 3x 18A 12V rails does not mean it can provide all of that.
"Total Combined Power on +12V1, +12V3, +12V3 can't exceed 360W"

360 / 12V = 30A combined.

In theory, the 6 to 8 pin adapters should work just fine (1080 only requires 215W).
https://www.evga.com/products/product.aspx?pn=08g-p4-6286-kr

Generally, if the PSU doesn't have the appropriate connectors, you shouldn't use it.

The exception would be an older designed PSU, of high-end quality, that hasn't degraded much over time.

Considering all the info I can find on that PSU is ~10years old though, and even then it doesn't speak to the quality..... I would just replace it.
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Kenton82

Kenton82

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Jan 4, 2017
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Personally, i would invest a small amount of cash in a new PSU. Maybe look at the Corsair RM550X or something from Seasonic - if you have the budget? This PSU that you have was never designed to be used with such cards, and i wouldnt want to trust it with a pricey GPU like that.
 
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Barty1884

Barty1884

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Apr 16, 2015
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Just because it has 3x 18A 12V rails does not mean it can provide all of that.
"Total Combined Power on +12V1, +12V3, +12V3 can't exceed 360W"

360 / 12V = 30A combined.

In theory, the 6 to 8 pin adapters should work just fine (1080 only requires 215W).
https://www.evga.com/products/product.aspx?pn=08g-p4-6286-kr

Generally, if the PSU doesn't have the appropriate connectors, you shouldn't use it.

The exception would be an older designed PSU, of high-end quality, that hasn't degraded much over time.

Considering all the info I can find on that PSU is ~10years old though, and even then it doesn't speak to the quality..... I would just replace it.
 
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