There could be a hardware problem. The first suspect is memory. How many memory modules do you have? With 32GB you'll likely have either 4x8 or 2x16. Try removing half of the memory modules (any half) as follows:
- Shutdown the system
- Flip power switch on PSU to off
- Then remove half of the memory sticks
Power the system back on and see if the crashes still occur. If they do, then:
- Shutdown the system
- Flip power switch on PSU to off
- Install the previous memory modules back
- Remove the other half of memory modules
Power the system back on and see if the crashes still occur.