Hi everybody, here's my issue.
 
I'm using a GTX 980Ti with an Acer XB270H.  This monitor and this video card are both 144Hz capable and G-Sync capable.  In my past I had a Asus Max. VI Hero mobo, running Win 10, and had 144Hz enabled using the same monitor and the 980Ti. It showed up as an option in BF4, or I could set it in the NVidia Control Panel.  In September of 2016 I built a new rig.  New Asus mobo.  My issue is that since that time the max I can set is 100Hz in the NVidia Control Panel.  It's strange.

I've tried:
1)  In the Nvidia Control Panel - I try to set up a "custom resolution."  I type in 144Hz and test it.  It says "test successful...etc." but it doesn't save the resolution.  Instead it provides 3 saved resolutions of 60Hz, 85Hz, and 100Hz
2)  I've tried unistalling the driver, wiping all traces of it, and reinstalling the driver.  No difference.
3)  I've tried removing and reinstalling GeForce Experience.  No change.
4)  I've tried using cru-1.3, a custom resolution utility.  Saving a resolution there and restarting the graphics card.  No change other than it resets everything to 60Hz.
 
The only thing I haven't tried is buying a new display port cable.
 
Is this a Windows issue?  Is anyone else having this issue.  I've googled and I can't find anything that resembles this that isn't fixed with a monitor setting or a cable or using the Nvidia Control Panel.
 
Specs:
Asus Maximus VIII Gene
16GB Ram
6770k
EVGA 980 Ti Classified
750W Corsiar PSU
2 SSDs
6 fans
 

Yes, new SSDs, clean install from scratch.  I mention that it worked before so that people would know it used to work.

Try DDU and load Nvidia driver 372.90
 
Use default settings - safe mode with reboot option
 
Backup critical info and make a restore point first ---> just in case it goes sideways
 
My 4K monitor does not support those refresh rates, that is the driver I run in Win 10 Pro 64bit
 
What does your monitor show up as in Device Manager ? Generic = need driver

Does this issue occur on older versions of windows 10?

Not sure if it's related but why do you have it set to 6 bpc? That's gonna kill your colors, that monitor supports 8 bpc, you should change it (and maybe that will help with the Hz?).

skimbro
I use the Acer monitor driver so the Acer shows up in the Device Manager.

Try uninstalling the monitor driver to see if that helps the issue.

Well, I tried the above and I got the same results.
 
(1) Created restore point
(2) Used DDU, restarted in Safe Mode, wiped drivers
(3) Restarted - generic windows display driver was in use.  
(4) Downloaded 372.90.  Installed.  Successful.
(5) Generic PnP monitor.  Attempted to change resolution - same results.  60, 85, 100Hz for 1920x1080.
(6) Installed the Asus monitor .inf - same results.
 
It's weird.

skimbro
Well, I tried the above and I got the same results.
 
(1) Created restore point
(2) Used DDU, restarted in Safe Mode, wiped drivers
(3) Restarted - generic windows display driver was in use.  
(4) Downloaded 372.90.  Installed.  Successful.
(5) Generic PnP monitor.  Attempted to change resolution - same results.  60, 85, 100Hz for 1920x1080.
(6) Installed the Asus monitor .inf - same results.
 
It's weird.

If you notice when using CRU you're trying to set a pixel clock of of 148khz which is out of range with the 145khz max. That is why it wont save and why your bit depth is all wrong. You might have some success using the pixel clock patch... Here's a huge guide...
 
http://forums.guru3d.com/showthread.php?t=410187

Just out of curiosity, since my ROG Swift does this, what is the actual monitor set to? Everyone is talking windows settings, but just verify the actual monitor itself is set to 144hz, and not turned down to 100.

With my swift, if it is set to 120 or 60hz, it will not allow windows to go up to 144hz. It may be correct on the monitor, but I would start at the one factor that doesn't allow higher settings to appear first.

My cable is relatively old and it was free, lol.

Dave3d
Try it this way:
 
(1) Uninstall any msi afterburner or evga software, and also the Rivatuner stats, delete the Nvidia folder in C:\, reboot.
(2) Use DDU restarted in Safe Mode to see if anything is left over that needs to be uninstalled.
(3) Install the Asus monitor .inf and reboot after a minute or 2.
(4) Make sure that the correct Asus monitor is detected in Device Manager > Monitors (weird, I had installed my monitor inf, and it just says 'generic monitor' now, and I know it was there when I was using G-Sync, but I recently turned off G-Sync and set it to 120hz instead of 144hz, so maybe stopping G-Sync made it go back to generic monitor, weird).
(5) 372.90  Install (Install ONLY nvidia driver and phys-x, do NOT install anything else), using custom mode, clean install checked, reboot.
(6) Go to nvidia control panel, and see if there is 144hz

 
What you're describing is what I did.  Generic monitor.  All Nvidia software removed.  No Phsy-x or audio.  Clean install, etc.

HeavyHemi

skimbro
Well, I tried the above and I got the same results.
 
(1) Created restore point
(2) Used DDU, restarted in Safe Mode, wiped drivers
(3) Restarted - generic windows display driver was in use.  
(4) Downloaded 372.90.  Installed.  Successful.
(5) Generic PnP monitor.  Attempted to change resolution - same results.  60, 85, 100Hz for 1920x1080.
(6) Installed the Asus monitor .inf - same results.
 
It's weird.

If you notice when using CRU you're trying to set a pixel clock of of 148khz which is out of range with the 145khz max. That is why it wont save and why your bit depth is all wrong. You might have some success using the pixel clock patch... Here's a huge guide...
 
 

Good point.  I'll try that.  Having said that, I shouldn't even have to set a custom resolution.  It should just work.  It used to prior to mid-2016.