Mine scales fine on one screen, how does yours scale in surround? Btw, are you seriously running 4-way SLI for 1680x1050?I've got mine spanned with NV Surround and it scales just fine. Just use GPU-Z to verify SLI is enabled (4 GPUs).
EDIT: btw - I recommend you remove 3 of your 4 cards backplates for better temps. I saw temp improvements across the board (was 77/78/64/57C; now 73/72/61/57C - after ~15 min. of Unigine Heaven). Obviously, the top card (closest to the CPU) won't benefit so I left that one on. Jacob F. from EVGA said the RAM is rated to 150C so it should be OK without the thermal pads on it (there are thermal pads mounted to the back of the backplates - see pic below).
Mine scales fine on one screen, how does yours scale in surround? Btw, are you seriously running 4-way SLI for 1680x1050?
My temps are fine, I'm only hitting 71C on the hottest card in Heaven. My RAM is OC'd to 3554, probably can OC it even more, so I'd rather keep them on. Did you check your RAM temps without the backplates? What are they?
Dude, have you read this read at all? I guess not, but that's OK. Here's what you missed:Haha. No. Those settings are for benching on Overclock.net. How would I be running NV Surround, then? It's 5760x1080 on 3x 120hz BenQ XL2420T*'s.
Not sure what you mean by scale...I get about 60-70 FPS in BF3 MP on large maps with everything maxed out (motion blur: off) at 5760x1080. I simply can't run under "Maximize 3D performance" if I want to run multi-monitor. Choose "Span displays with Surround" and configure it. That will utilize SLI to the fullest with multi-monitor. Make sure PhysX is set to "Auto-select."
Looks like a driver problem. I got it to scale well when I changed "Span displays with Surround" to "Maximize 3D performance". At 2560x1440 Heaven went from 58.1 fps in 2-way SLI to 105.8 fps in 4-way SLI. Fuck yeah.
OK nVidia, now how about you fix this so that I actually get to use this on my three screens? Please?
Yeah, anything over 70 C is bad news bears - because you're hitting the 70 C thermal wall where the GPU will start downclocking. So I'd remove those backplates if I were you. I am probably going to lower my factory OC to keep it down...or install a hacked BIOS so I can use 100% fan when gaming.
As far as I know there is no way to check RAM temps without an external apparatus. But 150C is ridiculously smokin' so he's essentially saying there's really no way you can F it up.
BTW - I'm really curious to see more about your rigs performance. I almost went to Z77 due to X79 not being fully supported by NVIDIA in PCIe 3.0. Luckily I was able to get their "hack" to work and I have PCIe 3.0 running flawlessly. I would have switched anyway but my understanding is the PLX bridge that is utilized in Z77 quad-SLI capable boards adds in latency (since it is not direct PCIe lanes from the CPU like in X79).
Dude, have you read this read at all? I guess not, but that's OK. Here's what you missed:
By the way, we have 4-way SLI. Quad-SLI is the term used for dual-GPU cards
Hey, I would like to apologize for my previous posts (before the edits). Mornings are not my best time. Regarding 4-way vs Quad SLI, I thought the same thing until Dan_D pointed it out. I agree that there shouldn't be a difference, but he's saying otherwiseI read it. Didn't miss it. When I span displays with surround I get 4-way-SLI-like performance...that's all I was stating. Just trying to help.
Man, you're quite the charmer! Haha. Quad-SLI is the correct nomenclature, as well. I've never heard it referenced differently...I mean 4-way or quad...same difference.
EDIT: just ran Heaven at 5760x1080 and you're right - it doesn't scale. I'd guess it's a Heaven problem, though. Because my performance in everything else is quad-SLI (or 4-way-SLI ) level. I just started using Heaven to bench a few days ago...never ran into it with my previous 680 2GBs. My numbers:
Hey, I would like to apologize for my previous posts (before the edits). Mornings are not my best time. Regarding 4-way vs Quad SLI, I thought the same thing until Dan_D pointed it out. I agree that there shouldn't be a difference, but he's saying otherwise
Thank you for the benchmarks! I'm afraid that it's not only a problem in Heaven, since I got exactly the same results in Dragon Age II and Heroes VI. No difference in performance between 2-way SLI and 4-way SLI! I submitted a ticket to nVidia about this last night, we'll see what they say.
Just wanted to say that pictures of both of your systems are next to definition of [H]ard.
No problem, the goal is to get this fixed ASAP so that we can finally play some games in Surround on our setups You can submit your ticket to nVidia here.Ha...thanks man. fomoz is doing this shiz right. Z77 + 670 4GB 4-way SLI is the best max setup today. I started my 4-way SLI setup back when the 680s were launched so no Z77 or 670. Now I kinda wish I wasn't swayed back to X79 when I actually had a Z77 board and 3770K proc in my possession!
Back to the topic:
My issues may be popping up due to the lack of backplate and the thermal pads that are on them. Getting some graphical corruption that is consistent with memory issues. Had to downclock my core by 50 MHz in order to complete another 3DMark 11 Extreme Preset run! But the numbers are back to "normal" at least:
EDIT: this is also with "Maximize 3D Performance" on and NV Surround disabled (so one 1080p monitor) - so I think you are on to something fomoz!!! Nice work. Where do I submit a ticket, too? I'll ping Jacob F. from EVGA as well maybe he can help. Just sent him a tweet with a link to this thread.
Thanks! Yeah, the top three cards have airflow. It looked scary when I put it together, btu it's actually not that bad. There's a side fan blowing on them, too. They're running at around 72C max in Heaven at 1220/3504 with the fans at 80%.To the OP, awesome setup.
Just a question though, do those two center cards have any intake airflow whatsoever?
This may be an isolated issue to certain tests. I ran the standard "P" 3DMark 11 test and my results were the same (essentially) between "Maximize 3D performance" and the "Span displays with Surround" settings.
fomoz - can you see if you get similar results? Obviously, we're not going to run at 720p with this setup...but still.
It's possible, since 3DMark11's Performance preset is pretty much a CPU test with this hardware.
I will. Have you tried Heaven at 720p, too? Curious to see if you get the same results.Cool. Try the P test at some point. You'll likely have similar results. In other news my issues from earlier are likely a bad card (VRAM issue - problems didn't go away when I re-installed the backplates). Now I need to futz with the lot of them to see which one is bad. :-/
I really think SLI gaming is the sweet spot (2 cards) at 1080p/120hz - especially if you can get two MSI Lightnings. They're nothing but butter. I'd quit the 4-way game but I'm already pretty invested in it. By the time everything will be cleared up by NVIDIA the next gen will be out and I'll be upgrading to that anyway. Ha.
I think I had something else running during the P run with Surround off. I did it again and I got 20,789 instead of 20,159.