power

[WolfBane]

ok got 2 780 classys in the top pcie i have 8 x8 power do i need the same for the bottom card as well ?
bottom card has 8 x 6 power connecter

 

[MARSTG]

You mean one card has 2 x 8 pin connectors and has 8+6 pin connectors? What's the issue? Your PSU does not have enough 6+2 pin power connectors?

 

[KaptCrunch]

whats your PSU 12 volt rail amperage ? need at least 47 amps

 

[WolfBane]

whats your PSU 12 volt rail amperage ? need at least 47 amps

well i have a cx 750 m psu

 

[KaptCrunch]

62A on that unit try one @ time to see if ok , in SLI getting error?

 

[WolfBane]

well works great on the first card the second card i cannot check , unless i drain my loop and switch cards in slots , refill and then test

 

[KaptCrunch]

ah may have one water block too tight

 

[WolfBane]

You mean one card has 2 x 8 pin connectors and has 8+6 pin connectors? What's the issue? Your PSU does not have enough 6+2 pin power connectors?

thats what i am thinking

 

[WolfBane]

ah may have one water block too tight

ok huh ?
what do you meqan to tight ?

 

[MARSTG]

He means the waterblock is screwed too tight on the GPU chip probably. And specs show you do have 4 x 6+2 PCIE power leads so you are fine there.