Hi!
I have Z620 workstation and tried to install new graphics card Asus Strix Radeon R9 390 STRIX-R9390-DC3OC-8GD5-GAMING.
Installing the card to the primary PCIe slot, makes the computer beep 6 times and not waking up. Installing the card to the secondary slot wakes up the computer and everything works fine. Only problem is the size of the graphics card, it is so low that fans takes hit on cables and they wont work right.
What is the reason why the primary pcie slot doesnt work on new graphic card? Secondary works fine.