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SLI with different cards

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2080ti & 2080 with DLSS will not SLI with DifferentSLIAuto, since the patch for 4xx drivers does no longer support different cards.
 

tbone3366

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I got the cards to post in a game but as soon as frame 2 is drawn crash, I changed the hardware id of the 760 to match that of the MSi 770
 

Krokodilus

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Thank you all, now two working gtx 960 in my dell t5500, that officially not support sli.
But any option to turn test signing off again, and use these benefits forward? Some games don't like it... Thanks :)
 
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Thank you all, now two working gtx 960 in my dell t5500, that officially not support sli.
But any option to turn test signing off again, and use these benefits forward? Some games don't like it... Thanks :)

@DonnerPartyOf1 found EfiGuard to be working for Apex Legends with his VM.
I wonder if it will work without a VM.


I'm trying to figure out how to sign the drivers by copy the hex code and comparing what changed

I am no expert but I don't think it works that way, right?
Modifying any file signed with a certificate would make that file's certificate invalid, won't it?
 

tbone3366

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Idk, I'll learn if it invalidates but I know how to create certificates so maybe I could grab the cert
 

Elvillegiante

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Yeah! I did it! Thanks to anatolymik and everyone who participated in the development of DifferentSLIauto!
Thank you very much, guys. Now two my Asus GTX580 Direct CUII work together on Gigabyte GA-EP45-Extreme. I really had to install second power supply
From Russia with love
 

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synaps3

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I have some weird SLI problems. On 388 and win 8.1 and 417 with win 10. I have better results without sli enabled tan with sli.
My specs:
cpu: xeon e5440@2.83
ram: 8GB DDR2
Gpu: Asus GTX 750 + Asus GTX 750Ti
MoBo: Asus P5Ne-SLI
PSU: Silentium PC Velo l2 600W
TombRaider_2019_04_23_19_44_03_270.png
TombRaider_2019_04_23_20_49_11_834.png
 

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tbone3366

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Remember that your cards will be twice the power of the slower card theretically and that your mileage will vary, @synaps3 my 760 and 770 don't want to pair completely but I'm gonna try flipping them around to get that to work
 

synaps3

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Remember that your cards will be twice the power of the slower card theretically and that your mileage will vary, @synaps3 my 760 and 770 don't want to pair completely but I'm gonna try flipping them around to get that to work
But normal gtx 750 (without ti) is getting similar results like 750ti.
 

xderpx

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So I got a new motherboard to test out if running the 2nd GPU in a PCIE 1.1 4x slot was a bottleneck. I've made a video with some benchmarks of my findings:

But TLDR; Yes, it was definitely a bottleneck, and swapping to a board that has both slots at PCIE 3.0 16x gave me i think on average an extra 25-40%ish fps over the old motherboard. So thank you topmytseries5 for your initial findings on PCIE bandwidth bottlenecks. It seems games definitely use more lane bandwidth than synthetic benchmarks, as games saw a performance boost, whereas synthetic benchmarks were more or less the same. Though I am curious as to why Rise of the Tombraider has more than 100% scaling for me now haha.
 
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Software Windows 10 Pro x64 v1803
But TLDR; Yes, it was definitely a bottleneck, and swapping to a board that has both slots at PCIE 3.0 16x gave me i think on average an extra 25-40%ish fps over the old motherboard. So thank you topmytseries5 for your initial findings on PCIE bandwidth bottlenecks. It seems games definitely use more lane bandwidth than synthetic benchmarks, as games saw a performance boost, whereas synthetic benchmarks were more or less the same. Though I am curious as to why Rise of the Tombraider has more than 100% scaling for me now haha.
Nice video, although I can't agree on the findings on the first two examples.

Tomb raider: 100% and more SLI scaling simply isn't technically possible. There must be something radically different with either the example on the left or that one on the right. Unfortunately that excludes this example for consideration, until these numbers make sense.

RE2: Something similar here: The example in the middle clearly does not use the 2nd card at all, while that one on the right does perfect SLI. That can't be just because of PCIe bus width. It has to be because of some differences in setup. Again, this example does not qualify for consideration.

So we're left with the final two examples, where the numbers all make sense, and should be counted towards the final result, which is in line with my experiences running a PCIe 2.0/x4. In the majority of games, the performance hit is negligible. But once in a while you come across a game that has the habit of issuing huge number of draw calls across the bus, so the performance takes a significant hit.
Only in these relatively few cases, upgrading PCIe slots will help.

I said it before, but a surefire way to check whether the PCIe bandwidth is an issue, is monitoring 'Bus Usage' in nVidia Inspector.
Every percentage used for Bus Usage is no longer available for actual GPU tasks, so you want to see values lower than ~10%.
 
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xderpx

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Yeah RE2 was weird. I tried using the improved profile, usage went way up, but the FPS was actually about 20% lower than single GPU.
Not sure why tomb raider had rubbish performance with the single GPU with the same settings though.
I can't remember the bus usage that I had. But i think it was like 30%.
 
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So I got a new motherboard to test out if running the 2nd GPU in a PCIE 1.1 4x slot was a bottleneck. I've made a video with some benchmarks of my findings:

But TLDR; Yes, it was definitely a bottleneck, and swapping to a board that has both slots at PCIE 3.0 16x gave me i think on average an extra 25-40%ish fps over the old motherboard. So thank you topmytseries5 for your initial findings on PCIE bandwidth bottlenecks. It seems games definitely use more lane bandwidth than synthetic benchmarks, as games saw a performance boost, whereas synthetic benchmarks were more or less the same. Though I am curious as to why Rise of the Tombraider has more than 100% scaling for me now haha.
What is you new motherboard ? let us know your gaming PC details.
How is more than 100% scaling possible in Tomb Raider ?
 

xderpx

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EDIT: Okay i re-ran the benchmarks. I think I know what's happened. When i changed the motherboard the game must have changed the settings without me realising or something. I thought i'd double-checked em but i guess not. Okay now the numbers make more sense. The difference between the none-SLI and SLI on this new mobo is about 66%-70%ish. So it's actually like a 0-7ish fps boost over the old board.

Thanks for clearing that up, my bad on the miss-info ^^. I'll take the video down and amend it with the correct SLI benchmark.
--------------
My PC is:
Win 10 Home 64-bit
i5-8600K. Ran it at stock speeds when testing.
16GB DDR4-3200 @ 3.300Mhz
The GPU's are one is an EVGA, one is a NVIDIA. Nvidia one is in top slot, EVGA lower slot. The EVGA one is stock overclocked, so i OC the nvidia one to match the speeds together.
Z370XP SLI-CF Motherboard. Old one was: MSI Z370-A Pro.
1440p display

I can't seem to OC my ram and cpu quite as high on this new board compared to the Z370-A though, but ah well.
 
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synaps3

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OK... Thats weird. I dont know but With sli enabled i have less FPS than with disabled...
My specs:
cpu: xeon e5440@2.97
ram: 8GB DDR2
Gpu: Asus GTX 750 + Asus GTX 750Ti
MoBo: Asus P5Ne-SLI
PSU: Silentium PC Velo l2 600W
Driver: 388.71
 

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OK... Thats weird. I dont know but With sli enabled i have less FPS than with disabled...
My specs:
cpu: xeon e5440@2.97
ram: 8GB DDR2
Gpu: Asus GTX 750 + Asus GTX 750Ti
MoBo: Asus P5Ne-SLI
PSU: Silentium PC Velo l2 600W
Driver: 388.71

Probably because of your old motherboard, which comes with PCI Express 8x.
 
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Motherboard Asus Z10PE-D16 WS
Cooling Corsair H45 + Corsair H115i
Memory 6x 16 GB Samsung DDR4 ECC REG 2133Mhz
Video Card(s) 1*Zotac GTX 1080 Amp Extreme, 4* Zotac 1050ti OC
Storage Samsung 970 Pro 512 GB Nvme + 850 Evo 250 GB
Display(s) LG D2342P
Case Thermaltake Level 20 XT
Audio Device(s) Creative
Power Supply Corsair AX1200i
Mouse Razer Naga Trinity , Corsair M65 Pro
Keyboard Tecknet Backlight Gaming Keyboard
Software Windows 10
Benchmark Scores Cinebench R15 :- 5225CB Cinebench R20 :- 10560CB
OK... Thats weird. I dont know but With sli enabled i have less FPS than with disabled...
My specs:
cpu: xeon e5440@2.97
ram: 8GB DDR2
Gpu: Asus GTX 750 + Asus GTX 750Ti
MoBo: Asus P5Ne-SLI
PSU: Silentium PC Velo l2 600W
Driver: 388.71
Its because of Nvidia nForce 650i chipset. It supported PCIe 1.1x16 only, that is 4GB/sec. When both slots are used, it drops to PCIe 1.1x8=2GB/sec.
Your DDR2 RAM is also another bottleneck.
 

tbone3366

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Try buying into ryzen as the 1700 on new egg is between 150-200$ and boards are relatively cheap , I bought an Intel g5400 Wich I'm disappointed at, 2 cores now is no way to go, I got the 760 770 SLI to work, bf1 went from an avg of 45-80 fps medium 1080p no AA, to about 60-105 fps same settings but that's the only game I got working
MSI PC pro Z370
G5400 1Volt
8gb aegis 3333mhz
4gb SC EVGA 760
4gb MSI twin frozr 770
416.29

Had to put the 760 into slot 1 and 770 into slot 2
 
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Storage Western Digital - Black PCIe 256GB SSD + 3x HDD
Display(s) 42" TV @1080p (main) + 32" TV (side)
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Power Supply Thermaltake Toughpower XT 775W
Mouse Roccat Kova / Logitech G27 Steering Wheel
Keyboard Roccat Ryos TKL Pro
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OK... Thats weird. I dont know but With sli enabled i have less FPS than with disabled...
But your screenshots do not show SLI vs. non-SLI, but rather SLI with 750ti/750 vs. SLI with 750/750ti
 

TiN

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Anyone got 430.64 driver working for Win10 x64?
I've used 1.7.1 patch from James, but it's unable to find patch #3 and #4.
Is there a workaround for this, please?

 
Joined
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Location
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System Name VFX RIG
Processor Dual Xeon E5 2686v3 18c 36T @ 3.67Ghz turbo unlocked
Motherboard Asus Z10PE-D16 WS
Cooling Corsair H45 + Corsair H115i
Memory 6x 16 GB Samsung DDR4 ECC REG 2133Mhz
Video Card(s) 1*Zotac GTX 1080 Amp Extreme, 4* Zotac 1050ti OC
Storage Samsung 970 Pro 512 GB Nvme + 850 Evo 250 GB
Display(s) LG D2342P
Case Thermaltake Level 20 XT
Audio Device(s) Creative
Power Supply Corsair AX1200i
Mouse Razer Naga Trinity , Corsair M65 Pro
Keyboard Tecknet Backlight Gaming Keyboard
Software Windows 10
Benchmark Scores Cinebench R15 :- 5225CB Cinebench R20 :- 10560CB
425.31 was the last driver to work with it.
I don't understand why people don't even read last few pages of this thread. You'll save lots of time by reading last 5 pages. DifferentSLIauto patch no longer works.
 
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