Windows 10: Windows Crashing constantly but only at idle

I'm have been chasing this issue for about 6 months now. My PC runs completely fine during use, no issues at all. Games and operates with no issues, but if I leave it for a few hours or overnight it will absolutely crash without question and gives different stop codes each time. The bug check codes I got are repeats of these but it's never the same one twice in a row. Each one seems to have the similarity that its crashing due to Paged Memory or IRQL. I unfortunately don't really know what that means but have tried to follow suggestions online to fix it (with no success) Here are the Bug Check Codes I keep getting.

Bug Check Codes : 0x0000000a

0x0000007e

0x000000d1

0x0000001e

0x00000139

0x000000be

0x00000050

I have tried everything I know how and learned a few potential fixes along the way but none have fixed this issue. I have tried updating drivers for everything, flashed my BIOS, reseated every component (excluding the processor) and even tried reinstalling windows TWICE. According to /u/dr_e_
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:)

 

all games crash!

I suggest you run rthdribl > http://www.daionet.gr.jp/~masa/archives/rthdribl_1_2.zip
Increase the window size step by step and watch your vga temps permanently.
What happens?
If it crashes, run at stock speeds as suggested before and retry.

P.S.: When your system locks, does the display signal turn off after a time?
Stuttering sound or no sound at all when freezing?
What X1800XT model do you own exactly?

 

all games crash!

ive watch my temps and both the cpu and gpu are within normal ranges. when it freezes it simply freezes the image and stops the sound. i must reboot to get back to windows.

 

Gta 4 crashing constantly

Sup everyone, i seem to be having a very annoying problem. I purchased gta 4 recently and i installed it and it runs quite well, my system is listed in my specs. The problem with the game, is that about +/- 5 minutes of playing, the screen gets funny coloured squares and my whole pc crashes. I have xp sp3 installed. I have tried numerous things like clocking my cpu back to stock but to no avail. My pc is not overheating, thats for sure, i dunno. My mate just told me that it might just be a bug, but it seems strange that i bug in the game would cause my whole pc to crash. Any suggestions?