Hello kemical.
I would like to inform you, that I had enough of all that stuff. I will send the motherboard to MSI due the warranty of three years.
Also I now really bought new stuff (so only case and harddrives/SSD keeps the same). But guess what? I am unlucky like .. ****. First the cpu cooler was dented. I sent it back for changing to a new. Two days ago I installed the new motherboard (also a MSI) and all the new hardware (CPU, CPU Cooler, RAM, Mainboard and the new graphiccard and PSU I already told you). Then I just recongized that the Mainboard didn't save the Casefanspeed correctly. This means: In the BIOS setup for the Casefansetup all settings were saved, but when I rebooted the computer - however going into windows or BIOS - then the Casefans where on default. Switchign to the Fansettings in BIOS showed me, that all settings I made are still in and in this setup window the fans slowly started to change to my settings I made without that I have to do something.
Well then I thought a BIOS update could help. Well LiveUpdater6 showed me errors for this. Then trying manual BIOS Update with USB Flash in BIOS Mode itself.. firstly my USB Stick could not be found by the BIOS. Then I tried another USB Flash, started the BIOS Update via BIOS settup.. while on 18% the BIOS Update stucked for 20-25 Minutes. I restarted the computer because I didn't think anythign would change. I was glad that I still could get into BIOS and Windows. Now I tried LiveUpdater6 again and - I don't know why - the BIOS Update worked. However this all already doesn't seem to be fine. But wait: there is more to suck up BOB!!
The other problem is, that sometimes when booted into Windows, that either the Mouse or the keyboard didn't work (but the LEDs of it still worked). Sometimes the Mouse worked after 15 seconds, but most of the time the keyboard OR the mouse didn'T work and I needed to replug it in. Also this could happend to the keyboard while doing stuff. For exxample today I played GTA 5 for two hours.. and once I was in a mission briefing, the keyboard didn'T work anymore until i replugged it in. BUT... I didn't have freezes in GTA 5. I played some seasons and in complete with the new system it could be 5 hours without. Also performance was much much better. No evil framedrops I get (They got worst from day to day I felt)
However.. I contacted MSI already from beginning and now even they say.. they guess it is some kind of corrupted. I should send it to my seller to get another one. This means: Tomorrow I send it back, now I am here without my computer and using my old Laptop.
I hope this much text isn't annoying for you and I have to thank you again that you are such a friendly supporter to me :and taking time for me!