Can my system run gtx 780 SLI smoothly?

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MetricXarrow

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Feb 22, 2014
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My current build is

i7 4770k
Asus Maximus VI hero Motherboard
16gb Ram
1050W PSU

Rest is just the basic pc parts not really important but if i wanted to run 2 gtx 780's (ive never run 2 before) would my motherboard and rest of the system be able to handle it? I plan to run two gtx 780s in the future because i eventually want to run multiple monitors with like 1440p and what not and i just wanted to know if two graphic cards puts more strain on anything. thanks
 
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Depending on the case, you may experienced minor to severe temp problems with your two GTX 780s. You may want to consider water cooling them. That aside, it works to have both there. Just make sure you have plenty of ventilation and proper fans. I have one GTX 780 now and...
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Ludamister

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Feb 19, 2014
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Depending on the case, you may experienced minor to severe temp problems with your two GTX 780s. You may want to consider water cooling them. That aside, it works to have both there. Just make sure you have plenty of ventilation and proper fans. I have one GTX 780 now and plan to get another one soon.
 
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MetricXarrow

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Feb 22, 2014
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yeah i currently have a mid case, planning on going full tower when i do go two gtx 780. So aside from the case, the rest of my system can handle it nicely? so i dont need to upgrade anything else in the process?
 
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Ludamister

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You're going for pretty much my same build. I'll post my pcpartpicker list here later since I'm on my cell phone but yeah. Exact same build. I haven't bought the hero or the i7 4770k yet but I did buy the EVGA GTX 780 Classified and will be buying another one I also have three monitors although all of them run at 1080p. If you're going to run the cards with their air coolers, I think you can put one card on the top PCI-E slot and the second card on the third PCI-E slot and they'll both run at x8 and you'll have a good enough gap between the two so that you can get better airflow in between them. If you can mount a fan directly hitting that gap, then you're golden. You should definitely post some pics when you're done or as you're doing it since we're doing the same build pretty much.
 
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Ludamister

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http://pcpartpicker.com/p/3a49j

Okay so I've been busy last couple of days lol. I have purchased the Hero and the 4770k and they'll both be in by Thursday or Friday. I'm not sure if you can put the 2nd 780 in the third slot but, if you can, then that'll give quite enough spacing to allow for some air to flow through, especially if you have side panel fans directed at the GPUs. I can't wait myself! All I got left is the power supply, the cpu cooler and the second GTX 780! Curious to ask, which GTX 780's did you get? If you got reference 780s, then I would't even be concerned cause they are designed to blow hot air out of the back of the case and most people go that way for SLI for the sake of convenience and compatibility with lots of water blocks.

I got the classifieds because they have dual bios allowing you to flash custom bios which help for bypassing volt limits and pushing the card even further when it's running on water cooling.
 
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Seeking Solace

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Oooh interesting question, I'm curious to hear the answer.

 
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Ludamister

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"The ASUS Maximus VI Hero comes with two PCI Express 3.0 x16 slots, one PCI Express 2.0 x16 slot (working at x4 speed), and three PCI Express 2.0 x1 slots. The two PCI Express 3.0 x16 slots are controlled by the CPU, with the first slot working at x16 when only one video card is installed, and both working at x8 when two video cards are installed. The third PCI Express x16 slot is 2.0 and works at x4, but it comes configured at x1, and you need to change this configuration manually at the motherboard setup program. If you plan to install a dual-slot video card in this slot, you will have to buy a case with at least eight slots (computer cases usually have seven). One important detail is that this slot shares PCI Express lanes with the PCI Experess x1 slots, and they can't be used at the same time. The PCI Express 3.0 x16 slots support both SLI and CrossFireX technologies. It is important to note that, according to the motherboard's manual, the PCI Express 2.0 x16 slot doesn't support these technologies and can't be used to install a third video card under SLI or CrossFireX modes. If more than one video card is installed, you must attach a SATA power connector from the power supply to the motherboard. This connector is located near the SATA ports and will be shown in Figure 4."
Click to expand...

That's from this link here. http://www.hardwaresecrets.com/printpage/ASUS-Maximus-VI-HERO-Motherboard/1780

If that's the case, if I interpreted this correctly, I don't think you will be able to utilize that PCI Express 2.0 x16 slot at the very bottom for "Triple SLI" and perhaps Dual SLI as well. However, you do get a least one slot of spacing between the two cards in the upper PCI 3.0 x16 slots.
 
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