XrayMan
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Please list your Pros and Cons with having two GTX 1080's vs. one GTX 1080. For us that haven't Sli'd two cards yet. ;)
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mpoffo
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/20 19:45:34
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Personally I have used some version of SLI to help drive my surround set-up. I find that usually 2 cards works well overall in SLI. I did SLI with 580's and 680's. I did tri-sli in the 780's which was nice, it looks pretty, but I probably should have saved my money and upgraded another part. :) In game performance is better in my opinion generally and you get better frame rates. Con's I suppose you could say heat in some cases but heat can be mitigated in other ways. Some 1080 reviews pointed to heat on the founders cards. Personally I will probably 3D print a fan shroud if I go to with the founders edition to help with cooling. I know some have complained about issues with stuttering issues with SLI but I have not seen that. Even if I start with one 1080 for surround I do plan on adding a second.
post edited by mpoffo - 2016/05/20 21:08:51
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Zordrack
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/20 21:58:25
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I sold my 2 980ti this week on my 3 way sli setup. Let me say this; life is so good without SLI ! It feel like I have a new pc it's so smooth. No more random crash, flickering, stuttering, wierd bug like Xcom 2 interface not properly showing cover icon, no sli support when a new game is released or no sli support at all on certain game, broken sli performance on certain game after a new driver release, messing with nvidia inspector to find an sli bit that work, no sli support on dx12... I could keep going on like this forever. I have been using sli since gtx 480, 780, 980. There's always something wrong. I kept the best card out of 3 and I can now overclock it higher. Everything feels better and stable with one card. I feel like I'll have a much better experience with one card that run slower minus all the sli issues. Sli support is worst than ever, last year has been terrible for sli user and it doesn't look like it will get better with the 1080. I think it's the best decision I made by stopping to waste money on sli setup. For what it cost and for what you get in return it's really not worth it.
post edited by Zordrack - 2016/05/20 22:07:06
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VooDooPC
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/20 23:48:15
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Cons:
It's a glitchy mess that can cause a lot of issues in games.
It's barely supported by most developers.
Even some Nvidia technology that could make good use of SLI, like DSR/GSYNC, isn't supported in SLI.
Pros:
I'm sure it does real well in benchmarks?
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XrayMan
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 00:24:39
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seta8967
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 01:12:06
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VooDooPC
Cons:
It's a glitchy mess that can cause a lot of issues in games.
It's barely supported by most developers.
Even some Nvidia technology that could make good use of SLI, like DSR/GSYNC, isn't supported in SLI.
Pros:
I'm sure it does real well in benchmarks?
A lot of games? Most games work pretty well with 2 way sli gsync, it becomes glitchy after 3 way sli though. Most of the time i turned off 2 gpu. Again alot of AAA devs support sli. Gsync does support sli. Not sure where you saw that it doesn't. My experience, ans nvidia/acer/asus all sgow that it does support gsync.
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jgonz
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 04:05:29
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I have had 2 way SLI running since 2012. Not a single complaint as far as performance, system stability, glitches, stutters etc. (x58 chipset motherboard, x99 chipset motherboard, same video cards) For games that do not properly support SLI, simply disable it. That being said in the last 4 years I have noticed a significant drop in Game Developer support for SLI. Pros: Significant boost in performance when using 2 cards. It looks bad ass when you show your geeky friends that power of more than 1 card. Warms up your room in the winter under heavy load, for free  . (I have reference 680 cards, blower exhaust) Cons: Video ram does not scale with 2 cards. (2 gigs + 2 gigs = 2 gigs in SLI) Growing trend of game developers not launching games with SLI support. Warms up your room in the summer under heavy load, for free  . Expensive. GSYNC works just fine in my SLI system.
post edited by jgonz - 2016/05/21 04:08:06
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VooDooPC
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 08:58:52
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seta8967
VooDooPC
Cons:
It's a glitchy mess that can cause a lot of issues in games.
It's barely supported by most developers.
Even some Nvidia technology that could make good use of SLI, like DSR/GSYNC, isn't supported in SLI.
Pros:
I'm sure it does real well in benchmarks?
A lot of games? Most games work pretty well with 2 way sli gsync, it becomes glitchy after 3 way sli though. Most of the time i turned off 2 gpu.
Again alot of AAA devs support sli.
Gsync does support sli. Not sure where you saw that it doesn't. My experience, ans nvidia/acer/asus all sgow that it does support gsync.
I meant specifically trying to use DSR when you have GSYNC on.
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demo23019
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 09:05:14
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SLI is well worth it when game engine supports multi GPU. Unfortunately with DX12 its on a API level and they are leaving it up to the devs to implement. Im still getting 2 1080 i know games like battlefield 1 with support plus im playing at 1440/165hz
post edited by demo23019 - 2016/05/21 09:10:52
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gutcheck
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 10:02:46
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Funny you started this thread I was in the exact same head space. I'm about to ditch my surround setup and my SLI'ed 980's for a single 1080 and a 21:9 swift monitor. It just has more problems then solutions. I honestly can't remember the last time I had a good surround gaming experience. Nothing works. I have to always use a single monitor. I need two or three screens for work, so I will keep one or two of my 27 inch swifts but in the long run I want to add a single 4k screen to the 34 gaming monitor.
IMHO SLI isn't necessarily the problem. Surround support is the problem, and SLI support. The tech works, it's just flat out died over the last year or so.
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StealthArsenal
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 10:14:25
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I was actually thinking about this as well as of late. I am looking at it this way. If developers and nvidia continue the trend of not coding or developing proper SLI profiles, what is the point these days? I have been a big advocate of SLI over the years (SLI 580's, 670's, 780's now 980TI's) and I have to say the last year was pitiful for SLI support. While I am going to pick up a 1080 for my secondary rig, I am half tempted to purchase the next incarnation of the Titan and call it a day.
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Sajin
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 13:39:50
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XrayMan
Please list your Pros and Cons with having two GTX 1080's vs. one GTX 1080. For us that haven't Sli'd two cards yet. ;)
You don't need to go SLI on your 1080p monitor. One GTX 1080 will do you just fine at 1080p. GTX 1080 is overkill for 1080p. VooDooPC
Cons:
It's a glitchy mess that can cause a lot of issues in games.
It's barely supported by most developers.
Even some Nvidia technology that could make good use of SLI, like DSR/GSYNC, isn't supported in SLI.
Pros:
I'm sure it does real well in benchmarks?
DSR & GSYNC is supported in SLI.
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XrayMan
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 15:35:03
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Thanks again for the informative answers from everyone. I'm learning more, and more. =)
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z999z3mystorys
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 20:11:28
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I know I'm waiting to see benchmarks for the 1080 in SLI, I think I'll start with just one, and see if I need more performance, then check if SLI will offer that or not. my experience with SLI is that it depends on the program you are running A LOT. most of the time benchmark programs will have the best scaling for SLI, more than any game, and even more so for 3/4 way SLI
at 1080p I don't see SLI offering much, as from what I hear SLI does better the higher the resolution as well, so if you do go SLI, a higher res screen would make good use of it.
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dlomond
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/21 21:06:45
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i am using sli 770 gtx most of the time it works but u have to wait for game support witch is mostly before the game starts.
I play bo3 and the sli drops out on win10 sometimes. when win10 came out sli was broken for a long time but it is all fix now.
this time i am going with one card and later i will buy another.
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jeffro66
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/22 07:37:01
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I have always done sli since the 7800gtx 8800gtx 9800gt 280gtx 480's tri sli 580's 670's now 780's will do 1080 sli to probably don't need it but I like to know it's there if I do 
post edited by jeffro66 - 2016/05/22 07:39:11
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justin_43
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/22 14:03:40
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I have been running SLI setups since the beginning and have had zero issues. I never understand all these problems people claim to have because of SLI. I have never seen stuttering or flickering or had crashes because of SLI. I think people sometime have these problems and them blame it on SLI when it's really something else. For reference I have had 2x 7800GTX, 2x 8800GTX, 2x GTX280, 3x GTX 285, 3x GTX 480, 3x GTX 580, 3x GTX 680, 3x GTX Titan, 3x GTX 780Ti, 3x GTX 980Ti, 2x GTX Titan X...and have never had a single problem caused by SLI.
I say go for the SLI. 2 cards really scale well in most games.
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XrayMan
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/22 14:14:20
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willdearborn
I have been running SLI setups since the beginning and have had zero issues. I never understand all these problems people claim to have because of SLI. I have never seen stuttering or flickering or had crashes because of SLI. I think people sometime have these problems and them blame it on SLI when it's really something else.
Do you think certain set ups, like certain brands of hardware together may cause problems? Not being able to get sli to work for certain people?
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justin_43
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/22 14:25:40
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XrayMan
Do you think certain set ups, like certain brands of hardware together may cause problems? Not being able to get sli to work for certain people?
I guess it's possible. Most of all the boards \ cards I have ever owned have been EVGA and sometimes ASUS. Maybe some motherboards cause problems, I'm not sure, but I wouldn't think a GPU would cause compatibility issues because they all come from Nvidia anyway no matter who puts their sticker on it.
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stalinx20
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/22 14:32:55
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VooDooPC
Cons:
It's a glitchy mess that can cause a lot of issues in games.
It's barely supported by most developers.
Even some Nvidia technology that could make good use of SLI, like DSR/GSYNC, isn't supported in SLI.
Pros:
I'm sure it does real well in benchmarks?
If you can't get "your" system to run, yes it can be a glitch mess and cause a lot of issues. It being barely supported by most developers is a false statement. SLI runs fine in both DSR and GSYNC.
post edited by stalinx20 - 2016/05/22 14:34:57
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XrayMan
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/22 14:43:13
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willdearborn
XrayMan
Do you think certain set ups, like certain brands of hardware together may cause problems? Not being able to get sli to work for certain people?
I guess it's possible. Most of all the boards \ cards I have ever owned have been EVGA and sometimes ASUS. Maybe some motherboards cause problems, I'm not sure, but I wouldn't think a GPU would cause compatibility issues because they all come from Nvidia anyway no matter who puts their sticker on it.
Could also be user error. Like, not correctly using the right settings in Bios, Nvidia Control Panel, Windows itself, a loose SLI bridge, or simply the game does not support it, and the user doesn't know this. Also I think Motherboards such as ECS have some difficulties sometimes. Those are cheaper knock off versions, if I'm not mistaken.
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rsxownes
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/22 14:56:01
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willdearborn
I have been running SLI setups since the beginning and have had zero issues. I never understand all these problems people claim to have because of SLI. I have never seen stuttering or flickering or had crashes because of SLI. I think people sometime have these problems and them blame it on SLI when it's really something else. For reference I have had 2x 7800GTX, 2x 8800GTX, 2x GTX280, 3x GTX 285, 3x GTX 480, 3x GTX 580, 3x GTX 680, 3x GTX Titan, 3x GTX 780Ti, 3x GTX 980Ti, 2x GTX Titan X...and have never had a single problem caused by SLI.
I say go for the SLI. 2 cards really scale well in most games.
I have to say also that every generation of cards that I have had it was always a SLI setup. I never had any issues with stuttering, flickering, or crashes while gaming with SLI. The only issue recently that I've had is with a couple of games that are in the Alpha stages of their completion and I have to force a SLI profile to work with the games engine that is using. But even then most of the time I have success even with Alpha staged games. SLI is well worth it IMO, just make sure you have decent air flow within your case if you are not water cooling.
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thesynergy
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/23 08:26:46
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Until they release SLI reviews of these new cards, no one can say it will have the classic micro stutter of SLI. In fact, my understanding is that with these new cards and how they sync as well as the new connector, they operate more like a single card, or should at least. So there should be little to no jitter, frame variance, any of that stuff.
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demo23019
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/23 08:29:34
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Why do people still mention microstutter. Do you guys even have any experience with SLI? Microstutter hasn't been problem for years.
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transdogmifier
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/23 08:35:25
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To me SLi is a bit dicey...and I don't see the point ..it doesn't scale well enough (IMO!)...
I prefer the single card scenario...decent frame rates ...no worry if the game supports it..
better cooling (for the most part) than having two in the case...
SLi, to me, is just bragging rights for the most part
Edit: That's to say for 9XX series and previous generations..no idea on the 10xx series yet.
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demo23019
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/23 08:37:08
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Most stutter prob limited vram or even out of sync with static refresh i never get microctutter and been running SLI since GTX 280s
post edited by demo23019 - 2016/05/23 08:39:51
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jeffro66
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/23 09:55:08
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out of all my sli configuration I have never had a problem but always had a power supply to handle it I think the problem most people have is trying to push it with not enough watts and quality psu
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ragevirusqq
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/23 10:17:57
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I have Constant problems with 2 980ti in SLI. Almost every game I play ove rthe last year has driver crashes and SLI breaks. I many years experience with computing and done all the steps to fix, clean registries reinstall etc.
I was playing Witcher 3 last night and had a driver crash that disabled SLI and Nvidia settings wouldnt open until I restarted the PC. The Division crashes every 30 minutes or so for me if I have SLI enabled while playing. ANY ubisoft game I play seems to have some issue microstutter, input lag, driver crashes. This all stops if i disable SLI.
My opinion is that the driver crashes are caused by Windows 10 not SLI. Specifically frame timing. I run a pretty sterile desktop environment and disable all the windows 10 ****. Still every update seems to change some settings.
In summary it can be a bad experience and something that has to be dealt with when you just want to play a game. It can also be awesome when you are maxing out settings and everything in running smooth at a buttery 144fps. Other rigs I have had have not had this many issues Pre windows 10.
CaseLabs SM8 - X99 Classified - EVGA 1080ti - 5930k @ 4.5 - 32GB Hyper X predator - 480mm x2 and 360mm rads for super low fan speed and quiet operation- EK blocks and pump/res - All Bitspower black fittings - 1Tb samsung 850 evo 2tb total ssd space - EVGA 1300G2 - Predator X34 - Mayflower Objective 2 DAC/AMP - Beyerdynamic DT990 Pro - Sennheiser HD6xx - Mackie CR4 monitors
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stalinx20
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/23 11:42:14
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demo23019
Why do people still mention microstutter. Do you guys even have any experience with SLI? Microstutter hasn't been problem for years.
Mostly it's due to a lot of people just putting their cards in and doing no configurations within the control panel, running the game and expecting it to run. For the most part that is true, but there are certain things that you need to adjust within the NVidia control panel. While it's not the main issue, too much on the overclock "can" be part of the problem also.
post edited by stalinx20 - 2016/05/23 11:45:04
EVGA X79 Dark 2080 Black edition 980 EVGA 1000 gold PSU (Gold) 4820K CPU 16x G-skill
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ragevirusqq
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Re: What are the Pros and Cons of having two GTX 1080 cards in Sli? (VS one card)
2016/05/23 12:06:49
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I adjust everything in the control panel as required by my setup. Where are the magical settings you speak of?
CaseLabs SM8 - X99 Classified - EVGA 1080ti - 5930k @ 4.5 - 32GB Hyper X predator - 480mm x2 and 360mm rads for super low fan speed and quiet operation- EK blocks and pump/res - All Bitspower black fittings - 1Tb samsung 850 evo 2tb total ssd space - EVGA 1300G2 - Predator X34 - Mayflower Objective 2 DAC/AMP - Beyerdynamic DT990 Pro - Sennheiser HD6xx - Mackie CR4 monitors
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