I am running 2 monitors, a 32" with 144hz refresh and a 27" at 60hz.  When I start the computer the 32" (main) shows the splash screen for entering bios and then flickers and shuts down with no input and the other monitor never shows anything.  I literally have to unplug the 32", let it boot into windows on the 27" and then plug in the 32" to get it to work.  At first I thought it was the monitor, the 32", but that works fine if it is plugged in alone, the same with the 27".  Then I thought it might be the mother board, I had an Asus Z490-E Gaming that had a few other issues with it so I replaced that with an MSI MPG Z490 Gaming.  That fixed the other issues I had but not the monitors... Do I have to have monitors with the same refresh rate on this card for it to boot up?  I had difficulties on my 1070 when I first used them on it, but that ironed out after a while.. now with the upgrade to the 2070 it just amplifies the problem and I cannot even get it to post without disconnecting one of the screens and then plugging the other in after the comp boots up. Any thoughts or suggestions??

No it is not on a clean install.. I just built the computer 4 months ago and replaced the mobo on it this week. It was having issues with the monitors right from the start.

Sorry I have seen a few posts on the 2070 super having issues with running 2 monitors with different refresh rates.. i can try the clean install.. but god that is soo painful lol
 

DrDemented
Sorry I have seen a few posts on the 2070 super having issues with running 2 monitors with different refresh rates.. i can try the clean install.. but god that is soo painful lol
 

Are you're trying to imply that there is some "known" issue with RTX 2070 cards? If so that is definitely not the case. Just because you've seen a few posts doesn't mean there is an underlying issue. 
 

DrDemented
On the install. Should I just hook up one monitor to the integrated gpu to do it? Or start with both hooked up to the graphics card right away?
 

It shouldn't matter, but if you do decide to hook a monitor up to the iGPU remember to activate integrated graphics in your BIOS and then set your PCIE device to primary display adapter. 

Just to confirm that both monitors work fine at their native resolutions and refresh rates on their own correct? It's only when attempting to run dual monitors that you're having issues? If the monitor isn't running at it's 144Hz refresh rate while plugged in by itself, it could be a bad cable or the monitor itself going bad. If the monitor does work at it's intended resolution and refresh rate on its own and it's only when attempting to run dual monitors that issues arise, then you may actually have an issue with your card that needs attention be it faulty firmware or a malfunctioning display output. 

Try a different DisplayPort cable. Do not use "converters" they are nothing but trouble when it comes to trying to get higher refresh rates.
 
Turn off your iGPU on your CPU. Boot into Windows & go to NVIDIA Control Panel with just your 144Hz monitor connected. If your monitor has it, enable G-Sync, do a Change Resolution to the monitor's specs.
 
Apply and restart.
 
Boot into Windows again. Remove the monitor from the GPU & plug in your other one into a different port. Go into NVIDIA Control Panel and do your adjustments for that monitor. Now plug in the gaming monitor into the port you used to set it up earlier. See if they start to play nicely.