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
It is normal behavior. Using onboard gives more hashrate compared to using the HDMI port on the card. In my case I used to get constant 'Display driver stopped working' message which made me think of an alternative of using onboard VGA to connect. When you start your rig, configure your cards using HDMI then switch to VGA. You can check voltage on killawatt, dont have to worry about fan speed as long as you are getting constant hashrate.