Windows 8.1 bricks a motherboard?

I have been running my rig for the last 1 1/2 years in this configuration:
Intel Core i-7 3770k
Asrock Z77 Extreme 3
Gskill Ripjaws 16GB RAM
ASUS GeForce 210 Silent (as secondary GPU for triple monitor support)
Samsung 840 PRO 128GB
WD Black 1GB HDD (x2)
Windows 7

No issues with the system - no BSOD, lockups, etc....runs perfectly. I decided to upgrade to Windows 8.1 PRO. After the install completed and drivers were updated to most current, when the Windows Login Screen came up, the monitor goes black (except for the mouse cursor which went across all 3 monitors).

After extensive troubleshooting, I determined the ASUS GeForce 210 was having the issues, and the card was removed. I installed 8.1 Pro, everything is great. All updates complete, I decide to put the GPU back in the system. After booting, same black screen. I decided maybe Windows was updating something - so I left it in that state for about an hour while I ran to the store and picked up lunch.

Upon return - no change - so I remove the GPU, and now I can't get the mobo to post. After more troubleshooting - I have determined it is the mobo and ordered a replacement. It should arrive on Wednesday.

Question - do I reinstall the GPU (it was working fine - and works in my other rig), or just leave a dual monitor setup for both rigs? I am convinced that either WIndows 8.1 bricked my mobo, or was it just coincidence that the mobo died?
 


as you've pointed out, I think it's coincidence the mobo has an issue. A software installation (good or bad) won't brick the mobo. With that said, have you tried another GPU? Worth testing if you can, so you can be sure. With the arrival of a new mobo anyway, I think you've already taken the best course of action.
 
I have held back upgrading....I recently bought a laptop and with 8.1 and Start8, I really liked it. And looking into the apps and features, I decided to take the plunge. When it worked on the rig - it was great. The "black screen" appears to be Windows 8 in a state of confusion....I guess my next upgrade will be a single GPU that supports 3 monitors.....the confusion may be because of the Intel HD graphics running two monitors and the GPU running the third. Windows 7 handled it without issue for 1 1/2 years....
 
On thing I have found on this issue - many people that have updated to Windows 8.1 Pro, and have the combination of the Intel HD graphics (primary adapter) and NVidia GeForce (virtually any model here) GPU as a secondary (very common in laptop gaming computers) have the issues with BSOD, monitors not visible, etc......It appears there are issues with the Intel/NVidia hardware (I couldn't find anything similar using an AMD GPU). It seems it is only when they have updated from Windows 8.0 to 8.1 also.

The GPU is $30 - so not a big chunk of change...I ordered a new mobo, will install and save up some money for a decent GPU (AMD - not NVidia) that will support 3 monitors (so I don't have to use the combination of Intel HD 4000 graphics and the GPU). Not only should it eliminate the problems, but it should speed up productivity, as the GPU takes a load off the CPU.

I am not a gamer - but do quite a bit with Photoshop.....so looking forward to the upgrade. Does anyone have a recommendation for an AMD GPU that will handle 3 monitors (1920 X 1080), 2 HDMI, 1 DVI? Looking for the < $200 if possible - the lower the price the better.