What is the BSOD error code?
Did you check the error code in windows event viewer? If you haven't, search "event viewer" in start, go to windows log>system & you should be seeing some critical errors. Check this after reboot whenever your system crashes, it might hold some clues.
Also, what cooler are you using, are you sure about your thermal compound application? Is this a new system & the issues have been present since day 1 or is it a couple of months old & you have recently started seeing this issue? I am sure you are already using the latest chipset drivers.
Apart from checking all the above stuff, you should also stress one part of the system at once, like GPU though heaven benchmark & CPU through something like cinebench. It might be possible that it crashes only in one scenario which might help in identifying the problem. Do keep in eye on the temps as well through something like HW monitor. There could be multiple things at play here among the following & we should try to identify the issue in this order:
- Update the chipset drivers as well as reset BIOS to optimized settings.
- Reconnect all the connectors & possibly try to run the tests with everything on an open bench with just the stock drive & no extra stuff if possible.
- Test 1: Stress CPU using cinebench, see if you are able to finish this test or not & also keep an eye on the max temps(VRM, Tdie, clock speeds etc.)
- Test 2: If Test 1 fails, try running the same test with your stable settings.
- Test 3: Stress just the GPU using heaven or something which is very light on the CPU but stress the GPU to 100%. See if it is stable or not, the max hot spot temperatures also the memory temps if your GPU has that sensor.
- Test 4: If Test 3 fails, try running the same test with frames limited to 60Hz & see if that passes.
Based upon this result of these tests, it could be an issue with:
- CPU temperature, will be observed in Test 1 & 2.
- GPU temperature, will be observed in Test 3 & Test 4. At first glance we might think that it is a CPU related issue as lowering CPU voltages fixes the issue but it is possible that lowering CPU voltages is making you CPU bound in games & your GPU utilization is not full. If there was an issue with GPU temps, it might not shop up in this scenario.
- If all tests are passing separately, it might be an issue with your power supply. While the wattage of the power supply is more than enough, although I am not sure as it also depends on what else have you hooked up in your system, these parts draw high current & are prone to show up even in slightest of imperfections in the PSU.