Hmm, WhoCrashed only gave me reports from 4/26/15. This was it.
On Sun 4/26/2015 2:45:48 AM GMT your computer crashed crash dump file: C:\Windows\Minidump\042515-35140-01.dmp This was probably caused by the following module: ntoskrnl.exe (nt+0x150CA0) Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0) Error: DPC_WATCHDOG_VIOLATION file path: C:\Windows\system32\ntoskrnl.exe product: Microsoft® Windows® Operating System company: Microsoft Corporation description: NT Kernel & System Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above. This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue. The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
DPC_WATCHDOG_VIOLATION is caused by an out of date driver supposedly. Trying to see if any drivers are out of date now.