Did you do a clean install of Windows after the upgrade? IF you did not, that is one of the things I'd most recommend as a first step. Even if your previous system was an Intel based platform, it's just about one of the most common problems we see after upgrading due to differences and incompatibilities with drivers. Storage controllers, audio (This is a very common one), network adapters and even the chipset drivers all can, and do, cause problems after the platform change.
I would recommend that you do all of the following EXCEPT that I would do the clean install of Windows immediately after the bios update IF one is available that is newer than your current version and THEN update the drivers from the motherboard product page and lastly, update the Nvidia drivers using the latest version from their support page.
Here are the first steps to take when trying to solve these kinds of hardware problems. If you have already tried these steps, all of them, exactly as outlined, we can move along to more advanced solutions.
If there are any you have NOT done, it would be advisable to do so if for no other reason than to be able to say you've already done it and eliminate that possibility.
If this is a no-POST issue, then refer to these instructions.
**Click here for help troubleshooting hardware and No-POST issues
Otherwise, continue on.
First, make sure your motherboard has the MOST recent BIOS version installed. If it does not, then update. This solves a high number of issues even in cases where the release that is newer than yours makes no mention of improving graphics card or other hardware compatibility. They do not list every change they have made when they post a new BIOS release.
Second, go to the product page for your motherboard on the manufacturer website. Download and install the latest driver versions for the chipset, storage controllers, audio and network adapters. Do not skip installing a newer driver just because you think it is not relevant to the problem you are having. The drivers for one device can often affect ALL other devices and a questionable driver release can cause instability in the OS itself. They don't release new drivers just for fun. If there is a new driver release for a component, there is a good reason for it. The same goes for BIOS updates.
IF you have other hardware installed or attached to the system that are not a part of the systems covered by the motherboard drivers, then go to the support page for THAT component and check to see if there are newer drivers available for that as well. If there are, install them.
The last thing we want to look at, for now anyhow, is the graphics card drivers. Regardless of whether you "already installed the newest drivers" for your graphics card or not, it is OFTEN a good idea to do a CLEAN install of the graphics card drivers. Just installing over the old drivers OR trying to use what Nvidia and AMD consider a clean install is not good enough and does not usually give the same result as using the Display Driver Uninstaller utility. This has a very high success rate and is always worth a shot.
If you have had both Nvidia and AMD cards installed at any point on that operating system then you will want to run the DDU twice. Once for the old card drivers (ie, Nvidia or AMD) and again for the currently installed graphics card drivers (ie, AMD or Nvidia). So if you had an Nvidia card at some point in the past, run it first for Nvidia and then after that is complete, run it again for AMD if you currently have an AMD card installed.
Here are the full instructions on running the Display driver uninstaller and CLEAN installing new drivers.
*Graphics card CLEAN install tutorial using the DDU*
Windows 10 Clean install tutorial
In the unlikely even this does not cure your problems, it would be helpful to not only know what the specs for your previous system were, but also what your EXACT power supply model is.
Also, make sure that your memory is in the correct slots. For two modules, they should be in the A2 and B2 slots. Might also be helpful to know WHAT your memory configuration IS?