Issues with 6 Monitor setup and windows 10

[kennymax89]

I am trying to trouble shoot an issue I am having with a trading computer I helped a friend build.
The specs;

Rosewill Quark-650w Full modular/80 plus platinum
i7 6700k
MSI Z170-A Pro
G.SKILL Ripjaws V 32GB (2 x 16GB)DDR4 2133
Two MSI R7 370 2GB
Crucial BX200 2.5" 480GB SSD
WD Blue 1TB Desktop
Windows 10 Pro
Six Dell 24” monitors
-Monitor inputs being used
--First R7 370; DVI-I, DVI-D & Displayport (DVI/DP adaptor)
--Second R7 370; DVI-I, DVI-D & Displayport (DVI/DP adaptor)

Built the computer int the middle of February and didn't have any issues until one week ago. Windows will not boot to the sign in screen with all 6 monitors plugged in. If you unplug one of the monitors or boot with only 5 of 6 monitors plugged in it will boot to the sign in screen and desktop just fine. The current work around is boot with 5 monitors plugged in then once at desktop re plug in the 6th monitor and everything works fine.

What I have tired to solve the issue with no success;
-Update MB bios and all hardware drivers
-Swapped video cards with other known good R7 370 video cards
-Tested with a Known good EVGA 750W PSU
-Reset settings in bios to default

Any Ideas / Suggestions?

 

[Christopher Vinciguerra]

Are you using a eyefinity setup in Radeon settings? Make sure it's configured properly.
I would do a clean display driver install by using AMD's clean uninstall utility found here http://support.amd.com/en-us/kb-articles/Pages/AMD-Clean-Uninstall-Utility.aspx, and then restart your computer.
Then, I would go to AMD's website and manually search for the driver here, and maybe have it downloaded before you clean uninstall http://support.amd.com/en-us/download. After you restart after using the clean uninstall, reinstall the drivers and test if it works. I'd be shocked if it didn't.