BSOD For unspecified 124 STOP

Welp, it happened again. This time while playing Overwatch Beta. It happened about 4 hours into gameplay. I checked and all components were plenty cool. BlueScreenView is giving me the same error:
Attachment 78343
Here are the drivers:
Attachment 78344
It is worth noting that other than a longer sturtup time, Windows reports noting after these crashes...

I tried removing a couple fans (as I had 7 total, not including GPU fans), so maybe that'll do something. Other than that I'm at a loss. I appreciate your ongoing help here, any suggestions are very welcome.

Thanks again.

For some reason I can't delete this, so I just edited it to say this, woot.

No idea if it is up to date..... Current version is 113-C6310100-X00

Hi,

Looks like that is the Video bios not the motherboard one that might need updating.

VBIOS Info

Filename:	160510.rom

VBIOS Version:	015.041.000.000.003348
UEFI Supported:	Yes
BIOS Build date:	2013-11-29 01:10:00
Date added:	2014-07-31 18:00

BIOS Internals

GPU Device Id: 0x1002 0x6810113-C6310100-X00113-MSITV303MH.1A0 C63101 CURACAO XT GDDR5 64Mx32 2GB 150e/150m(C) 1988-2010, Advanced Micro Devices, Inc.ATOMBIOSBK-AMD VER015.041.000.000.003348V30307SA.binPowerTune Limit: 143 to 199CCC Overdrive Limits GPU Clock: 1400.00 MHz Memory Clock: 1625.00 MHzClock State 0 Core Clk: 1080.00 MHz Memory Clk: 1400.00 MHz Flags: BootClock State 1 Core Clk: 1080.00 MHz Memory Clk: 1400.00 MHz Flags: Optimal PerfClock State 2 Core Clk: 1030.00 MHz Memory Clk: 1400.00 MHz Flags: UVDClock State 3 Core Clk: 300.00 MHz Memory Clk: 150.00 MHz Flags: Memory Support 2048 MB, GDDR5, Autodetect 2048 MB, GDDR5, Hynix H5GQ2H24AFR_CURACAO 2048 MB, GDDR5, Elpida EDW2032BBBG

Your version 6.0 Motherboard has the latest BIOS. See here for info.

Yep, still getting the same Blue Screen with no useful info other than the 124 stop, which apparently could be a number of things. Windows reports nothing, I don't see anything in the event log..... what do I do at this point? It seems like I'd need to try different hardware just to figure it out. The biggest problem is: It can't be reliably triggered anymore. Nothing about this is consistent. This time it BSd in Overwatch, but has done fine under the same conditions for 5-6 hours straight. I even started monitoring the GPU temp and I've never seen it go above 77c. My best guess is that it is the GPU, but who knows. I don't have 3-700$ to blow on one.

Well I meant actively monitoring during gameplay, which I wasn't doing before. I'll upload the crash logs soon, and run some more tests. Do I need to run a torture test or will an hour or do suffice? The crashes have happened anywhere from 10mins to 6 hours in, so IDK what is best to test.