retiredat21

Hello and THANK YOU PREMA JOHNKSSS & svI7.

I have referred you guy's to my reseller and to the ITC service guy I was dealing with through the problems I had, This is an extract of an email to both :

I have tried all I can to resolve the problem I have had with the flickering and scan lines with black flashing and have come up unable to make it work with both versions of the vBios. I backed up the originals and tried them but no go.

I then decided to download the Prema/svI7 modified vBios for the 780m to avoid another RMA. It works. I can confirm that now when I play a 3D game in SLI mode at 120Hz the corruption does not happen. I played Tomb Raider-Fall Out NV- Dead island RT- COD2-COD WaW- MOHAA and The Dark Mod (my mission Solar Escape) and did not see the problem manifest at all. These guys (Prema/svI7 ) should be working for Nvidia as they think it's a problem with the implementation of the temperature throttling method used when the cards are outputting a signal at 120Hz and I tend to agree.

You guy's should either seek their advice/Service or mod the vBios your selves for the 3D models.

The temps are good. The first GPU peaked at 89C after 3+ Hours of playing Tomb Raider (Max settings no Stereoscopic and FXAA ON), The second was hovering around 10C cooler. Yes This is hot but I was not in a cool environment and the ambient temp in the room was around 35C so the fans were kicking in load but were not full throttle, When I Fn+1 the fans to full throttle the temps dropped to the mid 70's and stayed there on the first card.

I brought it for 120Hz SLI gaming that wouldn't break my back taking it to a LAN Tournament I will really only use the stereoscopic 3D for blue ray movies. Now I have what I thought I was buying in the first place but had to research for two week, become a member of another forum, Post at least 5 posts to download the Vbios image and do all the work my self, Still I'm satisfied for the time being and the system is running fine now. I just stopped playing Tomb Raider after more than 3 hours again and no signs of the issue at all, This time the ambient room temp is about 19C and the temp on the first card hovered around the 75-80C.

Thanks for the help guy's it has been much appreciated.

I also got a hold of the Prema Bios mod firmware for the system Bios. @ Prema I am an old time overclocker but the last system I OC'ed was my C2Q6600 Go stepping and that runs awesome, XTU is a different kettle of fish, What should I do to get the most out of my CPU boost. dGPU's so no iGPU.

Thanks again and I'll be around if any would like me to beta something for them (sys specs in sig).

now this got me nervous for doing the flash... my temp as of now while playing battlefield 4 for 5-6 hours straight doesnt go beyond 60C.. bought cpu and gpu. no joke.. Im worried this might increase my overall temps///

ok I decided ill go for the flash later or tomorrow.. i just need to gather more confidence and courage.. wish me luck ;(

im actually scared of flashing the vbios.. i dont have any experience in doing this.. is it easy?

does this problem occur to every owner of the 120hz 780m sli display? even those made by builders like mythlogic?