I have found out it is not a temperature issue. I tried letting the computer boot up to the hard drive encryption password, which should only have run the BIOS checks, and then hitting control, alt, delete, to reboot, and then letting it boot up normally from there. Doing this, there are no DPC latency issues all day and the computer works fine. I tried flashing the BIOS and booted normally the next day and the DPC issues are still there, but today I did the immediate reboot and it is working fine. I don't know what the change is when I do the immediate reboot, but it seems to work.