SLI with different cards

[gerardfraser]

Yep, I also used that x4 configuration successfully.

Looking good, the only thing to check is whether Windows actually loaded the very file you edited by checking the location of the active driver.
Open Device Manager → Double click main display adapter → Tab: Driver → Driver Details and check the folder name of nvlddmkm.sys

I have also used X4 in the past in either Triple SLI or SLI with Physx card in 3rd slot can not remember now,so many setups over the years lol

Anyway
Thank you for the reply.This was one of the first thing I have done when I started reading the threads.
Maybe RTX cards Bridgeless is not as easy to get to work as I first thought.
I am sure though you do not need a bridge for games that are supported in DX12 like Ashes of the Singularity.
Thanks again for the replies.

 

[topmysteries5]

Yep, I also used that x4 configuration successfully.

Looking good, the only thing to check is whether Windows actually loaded the very file you edited by checking the location of the active driver.
Open Device Manager → Double click main display adapter → Tab: Driver → Driver Details and check the folder name of nvlddmkm.sys

@P!nkpanther Seems you're correct. SLI can work on X4, though I haven't experimented it enough.
Last time when I was trying SLI on PCIe 3.0x1 slot (985MB/sec), it didn't work. I also tried this on a Tyan LGA1366 server mobo which had PCIe 2.0x4 slots, it didn't work. Maybe I haven't tried enough.

@gerardfraser Check #2958, page-119.
Maybe RTX cards dont work without nvlink bridge.

 

[gerardfraser]

@gerardfraser Check #2958, page-119.
Maybe RTX cards dont work without nvlink bridge.

Well I have seen post where NVLink bridgeless worked and it was on older driver 417.22.
https://forums.evga.com/Enable-SLi-without-Nvlink-bridge-installed-m2903968.aspx

I just can not get it to work bridgeless with RTX cards in non SLI motherbord but maybe I can get it to work in SLI motherboard but not sure I care enough to try.
DX12 without bridges can run even with different GPUS without thse tools. AMD had not had bridge in years so it is just something with Nvidia software but hey I could be wrong and I have no problem with that either.
Thanks for the reply

 

[topmysteries5]

DX12 without bridges can run even with different GPUS without thse tools

I tried DX12 with games like Rise of tomb raider, the division, battlefield 1 on dual 1050ti/1080s, it didn't increase any fps (didn't work). I have tried the same with ashes of singularity and it worked. This driver mod atleast doubles the fps in DX11 for some games.

 

[gerardfraser]

Well DX12/Vulkan explicit m-GPU only works when developer implements it so I can see why ashes of singularity worked and the other games you mentioned did not.
Anyway I made a decision I will be selling my RTX cards ,I actually only wanted to try RTX Bridgeless on 4K monitor for games that can not play the best at 4K on a single GPU.
I thank you for the replies and all the help in forum post I have read.

 

[Pretentious]

Well I have seen post where NVLink bridgeless worked and it was on older driver 417.22.
https://forums.evga.com/Enable-SLi-without-Nvlink-bridge-installed-m2903968.aspx

I just can not get it to work bridgeless with RTX cards in non SLI motherbord but maybe I can get it to work in SLI motherboard but not sure I care enough to try.
DX12 without bridges can run even with different GPUS without thse tools. AMD had not had bridge in years so it is just something with Nvidia software but hey I could be wrong and I have no problem with that either.
Thanks for the reply

Do you get a notification from the driver telling you to connect an SLI bridge? In any case check the following (discussion took place in page 117).

So 388.71 with the official DifferentAutoSLI also did not work? Do you happen to have a server/xeon motherboard by any chance?

EDIT: My motherboard has this weird quirk with the nvidia driver, each GPU gets its own version of the drive - Go to Device Manager, Display Adapters, right click each of your GPU's, properties, then click Driver Tab, Driver Details and search for nvlddmkm.sys.

Notice how each GPU has a different nvidia driver path, nvaki_inf_ vs nv_dispi.inf? If you have a similar setup then there's an extra step.

 

[gerardfraser]

Great thank you for the help.
No notification to connect SLI and I will go back and read page 117.

 

[Pretentious]

Great thank you for the help.
No notification to connect SLI and I will go back and read page 117.

In that case I'm 99% certain the discussion on page 117 will help you fix the issue. One of two things will happen, you will either get a windows notification about missing the bridge Or SLI will be available to activate in the Nvidia control panel.

 

[gerardfraser]

Thank you for the reply again and the help.I have chosen to sell RTX cards and I will not be pursuing this any further but this thread was a great source of information.

 

[system1357]

May I incorporate your patches to the main program (DiffSLIAuto)?

I'm currently working on 419.17, if I have the time I will look through Shark's source code to see if I can put up something together to avoid having to load the driver via DSEFIX.


EDIT:
419.17
=====================
00000000002C2CDB: 75 C7
00000000002C2CDC: 05 43
00000000002C2CDD: 0F 24
00000000002C2CDE: BA 00
00000000002C2CDF: 6B 00
00000000002C2CE0: 24 00
00000000002C2CE1: 0E 00

 

[Pretentious]

May I incorporate your patches to the main program (DiffSLIAuto)?

Hey @JamesZzzz, please do! I would encourage to refactor the code for the masking/pattern detection. When I last looked at the code it was becoming a conditional spaghetti feast I think it's doable to make a mask that is backwards compatible all the way to 380x or maybe earlier, let me know if you'd like a hand with this. (As I stated previously I don't want to distribute/maintain anything but I am more than happy to help out with pull requests).

On a different note, do you happen to be familiar with the functionality of each of the sections patched? I am currently only addressing the sub routines for the patch[3] as I haven't had the time to play around with kdnet/detouring.

Thanks.

 

[Pretentious]

419.35
=====================
00000000002C30C7: 75 C7
00000000002C30C8: 05 43
00000000002C30C9: 0F 24
00000000002C30CA: BA 00
00000000002C30CB: 6B 00
00000000002C30CC: 24 00
00000000002C30CD: 0E 00

 

[SropZAN]

Hey, first of al; thank you very much! I got the setup working after a couple of hours.
I use two GTX 760's, at first the 388 driver didn't work for me, but the new driver 417 with the edited hex worked! I did come across a new problem, Easy Anti-Cheat (a anti-cheat program for games) requires the settings:
bcdedit.exe /set NOINTEGRITYCHECKS OFF
bcdedit.exe /set TESTSIGNING OFF
I turned them off, but now the driver doesn't work anymore (Nvidia control panel doesn't show up anymore, screen resolution is wrong). Is there a solution in which it's possible to disable these settings and have the SLI setup running?

 

[topmysteries5]

Hey, first of al; thank you very much! I got the setup working after a couple of hours.
I use two GTX 760's, at first the 388 driver didn't work for me, but the new driver 417 with the edited hex worked! I did come across a new problem, Easy Anti-Cheat (a anti-cheat program for games) requires the settings:
bcdedit.exe /set NOINTEGRITYCHECKS OFF
bcdedit.exe /set TESTSIGNING OFF
I turned them off, but now the driver doesn't work anymore (Nvidia control panel doesn't show up anymore, screen resolution is wrong). Is there a solution in which it's possible to disable these settings and have the SLI setup running?

Check Post #3068, Page-123,
I tried statelo's method, it worked but caused lots of problems with my OS, too many random BSOD and blackscreens. You may try it and post your feedback here, it can help him to fix those issues.

 

[SropZAN]

Check Post #3068, Page-123,
I tried statelo's method, it worked but caused lots of problems with my OS, too many random BSOD and blackscreens. You may try it and post your feedback here, it can help him to fix those issues.

Thanks for the fast reply, I'm not sure if I'll try it, since it's not worth risking getting banned for me. But even if I would, I'm still working on re-installing Nvidia as it's still not working properly again....

 

[chadleex06]

Thanks for the fast reply, I'm not sure if I'll try it, since it's not worth risking getting banned for me. But even if I would, I'm still working on re-installing Nvidia as it's still not working properly again....

for it to work properly, you need to delete all differentsliauto entry on registry

 

[bossvanvan01]

I have gigabyte 2080 ti windforce and zotac 1080ti amp extreme. RTX 2080Ti can differentsliauto 1080ti ? (2080Ti x 1080Ti)
If can sli. it can open ray dlss? Please help me. Thank you

 

[P!nkpanther]

Nope.
1xxx and 2xxx have different microarchitectures.

 

[bossvanvan01]

Nope.
1xxx and 2xxx have different microarchitectures.

Thank you. I think sli for game ark survival evolved. I will sell 1080Ti. I save up more money for a new 2080Ti. If no buy Nvlink. 2080TI can differentsliauto 2080ti ? (2080Ti x 2080Ti) but i see problem in clip youtube.

 

[P!nkpanther]

In general two 2xxx cards will work with this patch, but there's no guarantee of success.
Keep that in mind when ordering expensive things relying on this patch to work in your circumstances.

Anti-cheat software IS a problem, which you may be able to solve or not.
Read back this forum a couple of pages to give yourself a picture.

 

[Darekills4]

Thanks for the fast reply, I'm not sure if I'll try it, since it's not worth risking getting banned for me. But even if I would, I'm still working on re-installing Nvidia as it's still not working properly again....

I am using Statelo's method since the day he posted it (#3543) no ban from Easy Anti-Cheat or any other Anti-Cheats.

 

[topmysteries5]

I am using Statelo's method since the day he posted it (#3543) no ban from Easy Anti-Cheat or any other Anti-Cheats.

Did you get any random BSODs ? or screen black-outs ?

 

[PKBO]

Hi, is it possible to patch also driver for win XP 64 ? how ? it doesnt have this name in system32..

 

[Darekills4]

Did you get any random BSODs ? or screen black-outs ?

None whatsoever.
It's running as stable as a single card or perhaps two actual SLI supported cards.
And this is with 2 x Zotac 1060 6GB AMP Edition and two monitors. (Windows Version 1809).

 

[P!nkpanther]

Hi, is it possible to patch also driver for win XP 64 ? how ? it doesnt have this name in system32..

Win XP has never been supported by DifferentSLIauto.

With a huge stroke of luck however patching the 368.81 drivers might work with DifferentSLIauto1.5 (only if patch locations happened to be the same as in Win 7)