@WESTBLADE:

With all due respect I think you might be a little confused as to what I am saying is my situation, be it my fault or not, it really doesn't matter.

Basically, while working within the program (3DS MAX) I can be rendering a scene (using the 2080tis with the render engine of choice) and still maintain good viewport performance within the program itself. Essentially meaning I could work with limited downtime of restarting rendering but also gain increased response time. In the most basic terms I can think of, the 2080tis would be acting like a separate machine to render the image, while the 980 would be like your normal windows/display device.

With regards to the gaming side. Because I am not in a position to yet justify a second dedicated workstation/gaming machine I'd use the 2080tis to play games. However I believe it must be driver related that when the 980 was still in the machine, even though not being used it would give me awful performance in game.

I hope that makes sense? You probably don't care but I still felt like I should try and explain! :)

@WESTBLADE: Would you like me to buy you a 2080ti and make you feel a little better?

In all seriousness the reason for keeping the 980 was purely so I could have the 2080tis doing the rendering while I still work within windows/etc without suffering viewport performance degradation. Turns out that simply doesn't work for me and to solve the issue I had to totally uninstall everything, and just have the two cards instead.

Oh the "almighty" 980s are being sold. One is gone but if you'd like to write me a nice letter I might consider a discounted rate for the other one for you ;)

That OP is terrible. Not sure if its meant to be sarcasm but the PC version looks awful?? A few things maybe sharper and the performance is clearly better, but aesthetically whatever they've done to it has made it look like ass.

@horgen: I know I know.... just can't help but want to get the absolute max from them! Thanks for your replies and everyone else who has contributed, I appreciate it!

@horgen: To be honest, I probably could get away with removing the 980. I just liked the fact if I could I use the 980 to be the windows card and then the 2080tis to be rendering away. I rarely work like that and typically only use one of them for testing. Its just a pain that it seems like there is something going on driverwise to be causing this.

@PredatorRules:

Oh so sorry I didn't see all of your post about the PCI disabling. I'll give it a go. It seems more software/driver related since the problem was fixed at one point while I still had the 980 installed.

Thanks for the replies so far, however I doubt the PSU is the issue as the cards run fine when rendering which uses BOTH 2080tis while the 980 is being used as a monitor. The issue seems to be purely gaming where the 980 is present in the system. A friend of mine said that since the system is seeing there is 980 in there the computer will act according to work within the limits of that card? Apparently a guy had an issue similar before and had to remove the old card and do a clean install (which I sort of did before and it worked, but now its like the 2080ti isn't trying.)

So yeah I don't think its the PSU since when I use it to render its using both cards at full power and its totally fine and getting 100% performance. Something to do with gaming appears to be the issue.

Hi everyone!

So basically I've recently bought a pair of 2080ti's. I do a lot of GPU rendering however I do play the occasional game.

I've noticed however after keeping one my old 980s in as monitor display for when I render as I am working; when playing games (obviously switching cables over etc) my 2080tis seem to run kinda crappy.

The only time I've got them to run well was when I uninstalled the 980 (drivers only, the card remained in the system) reinstalled the drivers and the cards seem to run really well.

However I've run into the same exact problem again which I can only describe as the cards are throttling under something. Temps are low and so is the "power" usage.

I'm sure I should be able to run games through my 2080ti and it totally ignore the fact I've got a 980 still kicking around in there, but that just doesn't seem the case.

I can't really keep pulling the 980 out and reinstalling the drivers everytime I want to play a game. So I was wondering if there is anything I should be doing?

I've tried disabling the card, I've reinstalled the latest drivers. I've tried telling the awful nvidia experience thing not to use the 980 for things like CUDA usage etc on the app/games in question.

tldr; my old 980 seems to be causing my 2080ti to be awful at running games. Card looks to be not performing at 100% and bounces around 50/80%. Even lower if I put it at 1080p.

Any suggestions etc would be awesome! cheers :)

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