BSOD playing video games such as Cs:Go etc. Error, Random BSOD's

Try to upgrade to the new Windows 10 RTM version and see if it helps anything.

1 driver has been flagged which is a driver from Intel Rapid Storage Technology
Driver Reference Table - iaStorA.sys
Please download, install and run CPU-Z | Softwares | CPUID
When CPU-Z is open, please make screenshots of the following tabs and post them

• CPU
• Mainboard
• Memory
• SPD, each slot
• Graphics

Code:

ffffd000`a59d87f8  fffff801`63638800Unable to load image \SystemRoot\System32\drivers\iaStorA.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for iaStorA.sys
*** ERROR: Module load completed but symbols could not be loaded for iaStorA.sys
 iaStorA+0xb8800
3: kd> lmvm iastora
start             end                 module name
fffff801`63580000 fffff801`63af2000   iaStorA  T (no symbols)           
    Loaded symbol image file: iaStorA.sys
    Image path: \SystemRoot\System32\drivers\iaStorA.sys
    Image name: iaStorA.sys
    Timestamp:        Wed Jun 03 11:38:57 2015 (556ECB31)
    CheckSum:         0016D4E1
    ImageSize:        00572000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Would you mind running another hard drive test and SFC again?
This time another hard drive utility that gives a little more information, this utility can be used for both HDD and SSD.

Diagnostics Test

 HDD TEST

Run HDTune to scan for errors, health and benchmark.
Let me know what the results are, prefered screenshots.

Code:

1: kd> k
Child-SP          RetAddr           Call Site
ffffd000`254de1c8 fffff802`313d05a9 nt!KeBugCheckEx
ffffd000`254de1d0 fffff802`313d08d0 nt!KiBugCheckDispatch+0x69
ffffd000`254de310 fffff802`313cfaf4 nt!KiFastFailDispatch+0xd0
ffffd000`254de4f0 fffff800`f9d0672e nt!KiRaiseSecurityCheckFailure+0xf4
ffffd000`254de680 fffff800`f9bcc665 NTFS! ?? ::NNGAKEGL::`string'+0x18d8e
ffffd000`254de6b0 fffff800`f9c7c26b NTFS!NtfsTeardownFromLcb+0x145
ffffd000`254de750 fffff800`f9bcd170 NTFS!NtfsTeardownStructures+0xdb
ffffd000`254de7d0 fffff800`f9c7e291 NTFS!NtfsDecrementCloseCounts+0xd0
ffffd000`254de810 fffff800`f9c7b712 NTFS!NtfsCommonClose+0x401
ffffd000`254de8e0 fffff802`312f17a9 NTFS!NtfsFspCloseInternal+0x1a6
ffffd000`254dea70 fffff802`3135e6d8 nt!ExpWorkerThread+0xe9
ffffd000`254deb00 fffff802`313cad06 nt!PspSystemThreadStartup+0x58
ffffd000`254deb60 00000000`00000000 nt!KiStartSystemThread+0x16

Diagnostics Test

 System File Check

Please try following:

• Open an admin command prompt
• Copy/paste "sfc/scannow" (without quotes) and press enter
• When it finished reboot your system
• Open again an admin command prompt
• Enter sfc/scannow again

If sfc/scannow does NOT say "Windows Resource Protection did not find any integrity violation" after the second SFC, please upload the cbs.log file located at {windows partition}\Windows\Logs\CBS\, if the file is too large try a 3rd party uploader like dropbox, onedrive, google drive, mediafire etc.
System File Check(SFC a.k.a. Windows Resource Protection) needs to have your system rebooted in order for sfc to try to fix the problems that it finds.

Yes, try updating to the new RTM version, but after the tests please if you decide to perform them again.