Hi abstrakten & Welcome to the forums ^_^,
I have analysed your dump files and below has been provided an analysis of the same for informative purposes :-
An attempt was made to execute non-executable memory. The guilty driver is on the stack trace (and is typically the current instruction pointer). When possible, the guilty driver's name (Unicode string) is printed on the bugcheck screen and saved in KiBugCheckDriver.
Sadly, the minidump did not save the KiBugCheckDriver variable
Below is the stack -
Sadly, the dump file did not save enough information
1: kd> knL
# Child-SP RetAddr Call Site
00 ffffd000`2247b308 fffff801`014225fa nt!KeBugCheckEx
01 ffffd000`2247b310 fffff801`013f8f83 nt!MI_CHECK_KERNEL_NOEXECUTE_FAULT+0x4d74a
02 ffffd000`2247b350 fffff801`012ded29 nt!MiSystemFault+0x240d3
03 ffffd000`2247b3f0 fffff801`013cec2f nt!MmAccessFault+0x769
04 ffffd000`2247b5b0 ffffe001`48afda40 nt!KiPageFault+0x12f
05 ffffd000`2247b740 ffffc001`85508b00 0xffffe001`48afda40
06 ffffd000`2247b748 00000000`00000001 0xffffc001`85508b00
07 ffffd000`2247b750 ffffe001`4b41e140 0x1
08 ffffd000`2247b758 00000000`00000000 0xffffe001`4b41e140
The BIOS of the motherboard is now 5 years old :0 -
I would suggest you to update the BIOS from the below link -
1: kd> !sysinfo machineid
Machine ID Information [From Smbios 2.6, DMIVersion 0, Size=1603]
BiosMajorRelease = 8
BiosMinorRelease = 15
BiosVendor = American Megatrends Inc.
BiosVersion = P1.60
BiosReleaseDate = 09/14/2010
SystemManufacturer = To Be Filled By O.E.M.
SystemProductName = To Be Filled By O.E.M.
SystemFamily = To Be Filled By O.E.M.
SystemVersion = To Be Filled By O.E.M.
SystemSKU = To Be Filled By O.E.M.
BaseBoardManufacturer = ASRock
BaseBoardProduct = 870 Extreme3
ASRock > Support
Please note that updating/flashing BIOS is a very RISKY process. I repeat a very risky process and even a small mistake can make the motherboard paper weight.
I would also suggest you to try and run Windows 7 and see if that solves your problem or not. I am asking this because I don't see any 3rd party drivers which could cause these problems.
Let me know how it goes ^_^