Originally Posted by kizwan
Actually, it's the only reason for ASUS to put additional 4-pin/6-pin power connector on their ROG boards, to provide additional power. Most of the time you don't need them. GPU draw power from both PCI-E power connector(s) on the GPU & the PCI-E slot. ASUS probably think in some cases (especially with power hungry GPUs) when you have four GPUs, the GPUs unable to get enough juice to run stable when heavy loaded. This is where the EZ_PLUG come in play.
I didn't say you can't ask question here.
I knew that much kiz... and I certainly didn't get that you were saying I shouldn't ask. Just clarifying my question there... all is good there fo sho.
I just know how us geeks get about our knowledge of things and my identity is not wrapped up in it, thankfully. But I do get the purpose of the 4-pin/6-pin as the manual is clear about that. It's not clear exactly WHEN it's time to use it. My question maybe could have been something like, "is there a utilization threshold / measurement / nuber of cards that someone might know about" that might give us a standard for plugging it in.
You know how these rigs get with us on OCN, we don't want anything that doesn't NEED to be in the build, and want everything that does!
Originally Posted by xarot
I would use it with 3 cards or more, or with SLI if the cards are heavily overclocked. A good read would be this:
When the GTX 480 came out, people started to see their 24-pin ATX connectors melting because the power draw became too high...that's when mobo manufacturers started adding molex or additional power connectors to the mobos. I've never had this happen, even with GTX 580 3-way SLI but now I want to be sure, as it's easy to connect the 6-pin anyway.
There were even two revisions of some motherboards like P6T7 WS (4-way SLI ready) where the first one didn't have any connector and the second had a 4-pin molex.
You wont see any use for it if nothing happens, you only know afterwards if you should have used it. Hope this helps.
Good stuff there... thanks!!
I did find something in another forum about the fact that NOT using it when you should (still don't have a technical answer for this), you could see trace negative effects down the road. Something not as obvious as overclocking instability, or a fried 24pin.
Non-the-less, I will
pop it on there and even push my clocks a little with it to see if I can get a bit more from these 4GB cards. They aren't as OC friendly in games like BF3/4 or Crysis 3 as 2GB cards are (or in general for that matter). I still need another 480 rad in the system in order to get the right temps as right now I only have a single 480. GPU's sit at around 4-6C delta idle, and 20-25C delta under typical gaming load using surround in 5760 x 1080.
Thanks for the input guys!Edited by B3L13V3R - 10/16/13 at 3:17pm