Cuda error at cuctxcreate: out of memory! only wen i try to render on both of my cards?

[Gigiraptor660]

Cuda error at cuctxcreate: out of memory!! only wen i try to render on both of my cards.?

i have a gtx1080ti and a gtx780, now they have renderd together in blender without problems till today ?
Now they only render if i just select one of them wierd right.
and the scene does nott matter i even get this error with the startup file , than is just a cube to render.
I hope its just something i overlook, just wierd they dont wanne render together annymore , use one of them 780 or 1080 , than they render every scene i have?

Anny idea cause i liked it wen i could speed things up and just select both of them under user preferences.

[burnin]

Had same issue some time ago (month or two) when updating drivers to latest. Did rollback and haven’t fiddle since.

[Gigiraptor660]

Hi there, so that could be it, i do update time to time, so what you saying i should rollback my nvidia drivers yes ? il wil try it thx , i let u know

[Gigiraptor660]

Hey thanks Burnin , i did had to rollback 5 drivers for my 1080ti , the one that workt for me was

391.35-desktop-win8-win7-64bit-international-whql

All drivers above that one failed, just one other question now this is solved , what do you and me do now ? Never update driver again or just to go tjeck its works, if not go back to old one

[burnin]

either that or use same NV cards or switch to AMD… or maybe it’s a Cycles bug
(didn’t test with other CUDA engines since for me, CUDA is becoming too expensive & too limited/primitive – non-economical - inefficient ~ useless)

[Gigiraptor660]

Yow yeah the one thing i did not update is blender , i do it from time to time , but you know its a hassle to get and set all those addons back , il wil try update driver and blender , maybe that way it wil work if all updated , but thx to you , this is now to test out , and i can go on with blender