Hi guys. I am proud owner of 2 1080ti units but as of this moment I have my old 980 inside because this sudden drops and skips killing me. I can't play with ever 2 seconds it skips few frams so fast MSI afterburner or EVGA tools not reading this dropped frames in graphs. 
 
I am tried to fix problem by myself and then with help of Tomshardware community and then Nvidia community. Can't 
 
If you can please take a look at following forums for my topic:
 


 
In there you can see Video with what I see and what is happening. I mean is it Micro Stuttering to begin with ? OR something else.
 
As of right now I don't know what to do other than return cards as defective because I do not see answer right now and cards are in the bin (look in nvidia forum for a photo :D )
 
Out of more than 20 hours of troubleshooting we came out to this. For some reason card GPU power is spiking. When 980 is in and I am running let's say Tipe Spy I am getting consistent 100% GPU power and from that GPU activity is at 100% at all times pushing every frame it can. With 1080ti in SLI or by itself Power is spiking therefor GPU activity is spiking and skipping frames, in actual game same thing with 980 power is consistent as well as GPU activity even when not at 100% picture is smooth. Please IF you can take a look on forums for charts.
 
Also I did search and I see A LOT of people with similar problems but I don't see a single solution. I mean people suggest MAX performance in Nvidia control panel but I did that on 3rd minute of troubleshooting. I am on 20th hour now. I mean I am almost at the point I am looking in to VBIOS updates from other vendors and cards. May be using Nvidia VBIOS vs EVGA (don't know if FE edition of both VBIOS are diffirent).
 
Please help. I'll give you 2 charts one with 980 installed another with 1080ti installed. Look at GPU Usage activity and most importantly GPU power. In one it's nice and smooth in another is spiking like there is no tomorrow.
 
Thank you in advance guys !
 
980 Time Spy

 
1080ti Time Spy

Listing specs could help. Also its SLI you are dealing with. Try running a single Ti for now and see how things are. Do this for both 1 at a time for you know both cards are okay for now. 
 
Power Management: Prefer maximum
 
Per game basis maybe. Don't do it globally or the card will not downclock doing regular tasks. 

Sajin
Picture from your video...
 

 
Did your system tray have all those software programs running while testing with the 980?

OMG.... why do you have so many programs running in your system tray?  Also, you mentioned you tried one 1080 Ti, what were the results, did the stutter go away?

I went to the other forums. You said you were planning to do a reinstall of windows onto a spare hdd. Is that what you ended up doing, or did you re-install onto your ssd? 
 
Close everything on your system tray except for origin before you being to play mass effect andromeda.

From the looks of it with all those programs open even if not using allot of CPU cycles they did eat a ton of memory resources.  You where probably doing allot of swapping to you hard drive and in that case caused the stuttering.

Borednerd
 
I was about to and .... I found solution without actually finding problem. I disabled and removed all applications that running in the background including things like AIDA64 and MSI Afterburner. Things like Kaspersky is disabled and not running, also steam and uplay store and GOG. Basically nothing is running. And I just clocked 4 smooth hours with Andromeda game that pretty much I play ATM and I care about. I'll try to connect my second ti and will try again. I really hope I wont break anything.

Glad I was able to help you fix your problem. 

Seems to be working fine. AIDA64 Sensor Panel was to blame if I am correct.
 
Great 3D MArk results: