2x Molex 4-pin connectors for CrossFire on R3E advice...?

[benny d.]

Hello people,
Aight, consulting the manual on the Rampage III Extreme it says that for those using multiple graphics cards the two Molex 4-pin power connectors should be utilized, anyone have any experience with this? Cable lengths back to my PSU are making this a pain so i'm working on extensions but more insight would be appreciated...
out,
b

[hodgy1971]

Hello people,
Aight, consulting the manual on the Rampage III Extreme it says that for those using multiple graphics cards the two Molex 4-pin power connectors should be utilized, anyone have any experience with this? Cable lengths back to my PSU are making this a pain so i'm working on extensions but more insight would be appreciated...
out,
b

It's to prevent to much power draw through your pcie slots. Check this out!

http://www.overclock.net/nvidia/7709...-gtx-480s.html

Hodgy

[benny d.]

hellfire! nice catch brother, i'm playing it double-safe and not only using crossfire instead of sli but i'm gonna light both those connectors up as well... well played Asus, well played...

[Bobnova]

I think they're probably wired in parallel, so plugging into either one would do the trick.
I doubt you need to if you aren't OCing the GPUs through the roof.
That said, it certainly isn't going to hurt performance to plug in to one of them. I'd plug one in.

[adriantrances]

I wouldn't plug there personally. Just get sleeved it will look much nice and tidy.

[benny d.]

I think they're probably wired in parallel, so plugging into either one would do the trick.
I doubt you need to if you aren't OCing the GPUs through the roof.
That said, it certainly isn't going to hurt performance to plug in to one of them. I'd plug one in.

Well, I am planning on flexing this entire system pretty hard for gaming so if what you say is true, at least one of 'em is getting used if not both. I'll check the manual again but I wonder how I could find out for sure if both of these are in parallel...?

[Bobnova]

You could take a multimeter to it and check the resistance between the 12v pins on the two connectors. Other then that, i don't think there is a way to know for sure.

[benny d.]

You could take a multimeter to it and check the resistance between the 12v pins on the two connectors. Other then that, i don't think there is a way to know for sure.

Yes sir, any idea what i'd see if they're perhaps in series, inf? Just starting to figure out how these things are wired...

[benny d.]

You could take a multimeter to it and check the resistance between the 12v pins on the two connectors. Other then that, i don't think there is a way to know for sure.

Huh, i'm showing no resistance between the +12V leads on both connectors, funny thing is is that i'm not showing any resistance between the +5V one one and the +12V on the other (and vice versa) either...?