Experienced yesteday that the screen went blue and the LED in the power-button started to blink red, and fan went on full speed. Shut the PC off, and removed the side-cover. Waited ca. 5 minutes (for cooling down) Then I turned the PC on, the fan went on full speed, and the LEd in the power-button blinked 6 times (and it beeped 6 times as well). Accordig to manual this indicate a graphics card issue. Removed the card (AMD Firepro V7900), vacum cleaned the fan, before inserting it into the slot. Turned on the PC again and the same thing happened.
Looking at various optionsto replace the card I'm evaluating to use the AMD Firepro W5100 , but is it compatible with the Z420 from 2014?