SLI with different cards

[Sli_Reborn]

4 way sli? Thought all that ended years ago?

Negative, I personally brought it back to life & been doing it for over 3 + years with excellent results but takes tons of time tuning.

When tuning on my 4 GTX 970's, to do and learn everything on your own, including nvidia inspector bit tuning, its going to take about a year just to smooth it out, that's if you did and learned everything on your own, please feel free to visit my extreme 4-Way Sli thread, what everyone thought was impossible, proved them all wrong.

 

[Ruru]

My only SLI experience was with GTX 970 SLI 5 years ago..

But yeah, the point of the whole thread is to have a more or less working non-official SLI solution

 

[Sli_Reborn]

Just heads up, I have gotten these drivers to work:

388.71, 417.35 & 430.85.

I can only get up to or slighly higher then 2 way for the 4 Titan V's.

And yes, you will also need to change one of the unknown ID settings within nvidia inspector to use more then 2 Titan V's other benchmark programs, this bypass also applies to the Pascal Gpu's.

Under NVCP, it says anything more then 2 gpu's is for benchmark programs only, erh wrong, there is a bypass to everything, many thanks to Venturi on helping me on this.

Speaking of which, I am in constant communication with Venturi, you all might heard of him on other forums, he is helping me alot in this as we speak.

Also in addition to all of this, for those who are seriously into tuning Sli in general and with nvidia inspector, feel free to post a comment on our forum within guru3d .com, I will always reply very quickly.

One more thing, the only game that works under DX12 right off the back with no tuning required (Also applies to 4 Titan Xp's/Top Pascal Gpu), is non other then Rise of the Tomb Raider, but with the Titan V's, even under 2-Way Sli, its a no go, DX11, yes, but needs to be fine tuned within nvidia inspector, even then, still requires much work.

 

[Ruru]

Even though I may go with CF on my 2nd rig, I'll follow with enthusiasm what you can help here with guys. Totally following.

 

[True Cowboy]

I have a (gt730 pciex16) "GV-N730-2GI" and a (gt730 pciex8) "GT730-SL-2GD3-BRK" is it possible to make a SLI?

 

[hkbaby]

Hi All,

May I know of any success stories of RTX 2080 SLI without bridge?
I bought 2 2080M laptop(modded) but NVlink is not working , nothing shows on the NVidia panel.

 

[hkbaby]

Hi everyone,

I am successfully running 2 X 2080Mobile(mudded) SLI without bridge on Windows10 21H2.

Driver 446.14

I followed post # 3607 to change the driver hex program

SLI with different cards

Hello moderators and experts on this issue of the SLI MOD, any news to activate SLI AUTO in drivers 452.06, I have two GTX 660, but my motherboard is not SLI certified, will there be a modification in hexadecimal? for this version, thanks! for your time!

www.techpowerup.com

One more thing the http://xxxxxx/timestamp.dll in install.cmd is out of date, I have changed to another website.

 

[Dr_Rock]

Hi everyone,

I am successfully running 2 X 2080Mobile(mudded) SLI without bridge on Windows10 21H2.

Driver 446.14

I followed post # 3607 to change the driver hex program

SLI with different cards

Hello moderators and experts on this issue of the SLI MOD, any news to activate SLI AUTO in drivers 452.06, I have two GTX 660, but my motherboard is not SLI certified, will there be a modification in hexadecimal? for this version, thanks! for your time!

www.techpowerup.com

One more thing the http://xxxxxx/timestamp.dll in install.cmd is out of date, I have changed to another website.

Can you share the link to download the update timestamp.dll?

 

[hkbaby]

call "tools\signtool.exe" sign /v /s DifferentSLIAuto /n DifferentSLIAuto /t

http://timestamp.digicert.com

"%_nvlddmkm%.sys"

Can you share the link to download the update timestamp.dll?

 

[venturi]

link not working

call "tools\signtool.exe" sign /v /s DifferentSLIAuto /n DifferentSLIAuto /t

http://timestamp.digicert.com

"%_nvlddmkm%.sys"

 

[hkbaby]

link not working

Running on install.cmd instead of downloading it should be fine, the timestamp can be appended to the certificate.

 

[Paulus]

During my testing some boards specifically these new chinese manufacture boards showing up on the market will not do any SLI no matter what version of differentautosli you try to use or even editing hex as per the instructions in this forum. It just won't work. Even these so called amd crossfire Chinese board are very poor performers in crossfire when tested.They just don't seem to have have what it takes to get it done. nvme drives are useless perfomers on these boards as well.. waste of money. It would be impossible to say this for every chinese motherboard out there but in my testing they are terrible. I tested ever single amd driver all the way back to 13.1 I think it was. 17.10.1 is the last driver they have to support 4 way cross fire after that it's limited to 3way. As far as I know nvidia no longer supports SLI.

My instruction for enabling SLI on a non SLI board in Windows 10 with differentsliauto1.4 works every single time for me, everytime, just the way I wrote it step by step. Just not on the new Chinese boards that I tested. I currently have two different dual cpu e5-2697-v2 pc with Quad SLI GTX690 running flawlessly on both. I can play games, perform benchmarks....etc. no crashes, no bsod, no problems. I don't wish to pay the high prices or fight for newer cards on the market. Crossfire and SLI's whole sales pitch was to add more cards to get more perfomance. It makes no difference to me using an old driver as the new drivers are not best suited to older cards anyway not to mention I think they don't support SLI anyway.

I felt I have to reply to this even though it's a year old. I also am using a dual CPU Chinese board right now and what annoys me the most is they gave me 0 documentation. From my understanding to get SLi to work both GPUs PCIE lanes must talk to the same CPU, my Asus board had that clearly documented so I knew which PCIE ports I could use, this one does not. Just want to confirm if you tried multiple PCIE port combinations?

One thing that annoys me about this entire topic in general is that it's not that the capability is not there in hardware, it's Nvidia blocking it with its drivers. In my case my problem is this board is not SLi certificated, I am going to investigate at what stage during driver installation this check is done.

 

[geta]

The nvlddmkm.sys file is missing from C:\Windows\System32\Drivers. I think system reads it directly from C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_e2ba695c42c94535 . If I could just paste the patched file there I think SLI would kick in. But the system won't let me paste the file in that folder. Can that folder be unlocked?

Please do so at your own risk. I don't think it can be canceled, but how about deleting all the saved nv drivers (oemNN.inf) referring to https://ik4.es/en/como-borrar-la-carpeta-filerepository-en-driverstore/

 

[Mussels]

I've got a 1070, 1070ti and a 1080 here now

Are there any drivers that work without any major downsides or problems in windows 11?

 

[TheRedStormer]

I'm doing a dual 1060 6gb setup and I do not have the C:\Windows\System32\drivers\nvlddmkm.sys file. There were files by that name in 4 folders inside of C:\Windows\System32\DriverStore\FileRepository\ but I tried those and all gave the errors:
'''

[E] : Could not find patch #2. Please inform Ember @ techPowerUp! forums.
[E] : Could not find patch #3. Please inform Ember @ techPowerUp! forums.
[E] : Could not find patch #4. Please inform Ember @ techPowerUp! forums.
[C] : Patching was aborted because all of the patch locations could not be found.

'''
in the patcher. I have no idea what this means. any insight?

 

[Bokinator]

Can we SLI 4090s unofficially ?

 

[delshay]

I have a question.

Has anyone had two identical cards both undervolted with same exact settings, clock different speed? ..ie for example one card does 1400MHz & the other does 1365MHz. Both cards not pushed to max clock.

 

[hkbaby]

I'm doing a dual 1060 6gb setup and I do not have the C:\Windows\System32\drivers\nvlddmkm.sys file. There were files by that name in 4 folders inside of C:\Windows\System32\DriverStore\FileRepository\ but I tried those and all gave the errors:
'''

[E] : Could not find patch #2. Please inform Ember @ techPowerUp! forums.
[E] : Could not find patch #3. Please inform Ember @ techPowerUp! forums.
[E] : Could not find patch #4. Please inform Ember @ techPowerUp! forums.
[C] : Patching was aborted because all of the patch locations could not be found.

'''
in the patcher. I have no idea what this means. any insight?

you are almost done.

The following test is for academic communication only. Please do so at your own risk and delete it after the test.

1. Make sure your display driver is equal to or lower than Driver 446.14.
2. Go to device manager and look for GPU driver details button

2. Find out which folder nvlddmkm.sys is stored in 'C:\Windows\System32\DriverStore\FileRepository\xxxxxxxxxxxxxxx'
3. Copy nvlddmkm.sys into DifferentSLIAuto folder
4. Don't open the .exe that is no longer available in my previous test
5. Edit install.cmd and find this script 'C:\Windows\System32\DriverStore\FileRepository\xxxxxxxxxxxxxxx' and replace with the actual folder path of nvlddmkm.sys above.

6. Find this script

and replace with new timestamp path

call "tools\signtool.exe" sign /v /s DifferentSLIAuto /n DifferentSLIAuto /t
http://timestamp.digicert.com
"%_nvlddmkm%.sys"

7. Download hex editor and edit nvlddmkm.sys , Look for the following posts or other posts that match your driver version,
look for 84 C0 75 05 0F BA 6B and replace with C7 43 24 00 00 00 00.

angel618#3607
https://www.techpowerup.com/forums/threads/sli-with-different-cards.158907/post-4393030

8. Restart your PC and go to safe mode with network , Run install.cmd, you will get a modified nvlddmkm.sys. next time your computer will be in test mode.
9. Copy the modified nvlddmkm.sys into 'C:\Windows\System32\DriverStore\FileRepository\xxxxxxxxxxxxxxx'
10. Reboot your PC & SLI should work.

 

[t00kalmi]

Hello!

Can Gigabyte GTX670 and Asus GTX770 work together?

I'm a beginner
Maybe a step-by-step guide?

Cori 3770
Asrock extreme 4 Z77
8Gb Ram
Win10 64bit

 

[t00kalmi]

Hello!

Can Gigabyte GTX670 and Asus GTX770 work together?

I'm a beginner
Maybe a step-by-step guide?

Cori 3770
Asrock extreme 4 Z77
8Gb Ram
Win10 64bit

Which should be the (gtx670 or gtx770) master?

 

[68Olds]

Which should be the (gtx670 or gtx770) master?

I think you want the slower card GTX670 in the first slot.

 

[t00kalmi]

I think you want the slower card GTX670 in the first slot.

Thank you!

Can I use only whql 382.33 in the patcher (1.7)?

Now use 474.14

 

[zxTheWolfxz]

Bookmarked for info with trying to get 2x Tesla M40 to work this way.
Any help would be very much appreciated.

 

[t00kalmi]

you are almost done.




1. Make sure your display driver is equal to or lower than Driver 446.14.
2. Go to device manager and look for GPU driver details button

2. Find out which folder nvlddmkm.sys is stored in 'C:\Windows\System32\DriverStore\FileRepository\xxxxxxxxxxxxxxx'
3. Copy nvlddmkm.sys into DifferentSLIAuto folder
4. Don't open the .exe that is no longer available in my previous test
5. Edit install.cmd and find this script 'C:\Windows\System32\DriverStore\FileRepository\xxxxxxxxxxxxxxx' and replace with the actual folder path of nvlddmkm.sys above.

6. Find this script

and replace with new timestamp path


7. Download hex editor and edit nvlddmkm.sys , Look for the following posts or other posts that match your driver version,
look for 84 C0 75 05 0F BA 6B and replace with C7 43 24 00 00 00 00.


8. Restart your PC and go to safe mode with network , Run install.cmd, you will get a modified nvlddmkm.sys. next time your computer will be in test mode.
9. Copy the modified nvlddmkm.sys into 'C:\Windows\System32\DriverStore\FileRepository\xxxxxxxxxxxxxxx'
10. Reboot your PC & SLI should work.

Hi!
This link not working.
http://timestamp.digicert.com
This is good?

 

[t00kalmi]

Complete success!

Gigabyte gtx 670 (master)& Asus gtx 770

Works perfectly in SLI.
Thank you everyone!