SLI GTX 770 4gb and 770 2gb

[pablorz007]

Hello, please I need your help mates.

I have the 2 GPUs (Gigabyte 770 4gb OC y EVGA 770 2gb SC). At first IN Nvidia Control Panel didn't show me de SLI options. I had the latest drivers installed. 353.06. With the SLI Bridge connected (I tried 2 different New Bridges - ASOS ROG and the asrock original). I only could use the EVGA 2GB for PhysX.

I read a lot in fórums, but nothing concrete. both things. That it could be posible but the RAM of the 4GB was reduced to 2 GB. That is wasnt posible, etc.

I tried switching beetwen PCI Express slots, but did't work.

Finally i Re Intalled Drivers, in Now is see the SLI Options, but are disabled in grey and i can't Change that. But when this option showed UP, i have de Gigabyte 4GB in the SLOT nearest CPU (Slot prefered in manual).


Sorry my bad english.

I hope you can help me.

Regards

 

[bob4933]

You cant sli a 4gb and 2gb card. Not possible.

 

[ATMINSIDE]

You cant sli a 4gb and 2gb card. Not possible.

I thought you could, but with reduced vRAM

 

[bob4933]

I thought you could, but with reduced vRAM

No. Unless they changed some hardware on the new ones. 100% sure you cant do the 700's with mismatched vram.

 

[pablorz007]

Dear,

I found another exactly VGA Gigabyte (GV-N770OC-4GD) and the SLI Runs Great . I'm not sure, but it seems that only Works with the same amount of ram. But the mistery continues until somebody confirms the opposite.

Regards

 

[Rus_lan-off]

with different memory capacity SLI does not work, but

SLI with different memory size works if
1) open "regedit"
2) HKLM \ SOFTWARE \ NVIDIA Corporation \ Global \ NVTweak
3) create a key (DWORD) "CoolBits" the value "1f"
4)Reboot

This will limit the extra memory on the video with a large volume

Palit GTX770 2Gb & GigaByte GTX770 4Gb