Did you update your BIOS to newest version? Use Flash BIOS Button.
Then you have to update your Bios settings (got the infos from https://simplemining.net/support? ) :
1) Make sure you are running the latest BIOS! (you can also try older ones if newest isn't working)
2) Set device to boot from USB/pendrive !
3) Disable Sound audio card !
4) Enable 4G encode !
5) Set PCIe support to Auto or GEN2 !
6) Enable onboard graphics to default (PEG -> IDG)
7) Set also: power ON on AC power lost, disable virtualisation
![Cool](https://bitcointalk.org/Smileys/default/cool.gif)
Startet mining beginning of this year. For whatever weird reason it only worked with SIMPLE MINING OS
(tried several other mining OS's several times with no success - they either didn't load or start mining) booting from usb-stick (didn't try ssd or hdd).