I have an Asrock H81 BTC v.2 motherboard with (6) XFX RX 480 8 GB Black Edition cards. I use MSI Afterburner and can adjust voltage, memory, etc. Today, I decided to try changing the primary video from PCI-E to "onboard". When I did this, my total MH/s went up by about 6 BUT Claymore stopped displaying the GPU temperature and fan speed and MSI stopped working. It reports the temperature as 32F, the clock speed 0, and I can't adjust the voltage or fan speed.

Has anyone else experienced this? What would cause that behavior?

Thank you for your help.

Brian