Honored Contributor
Honored ContributorOne issue with PC's is if the reboot involves a PCIe slot power cycle, there can be a race condition between the slot power being stable and the PERST, slot reset de-asserted and the FPGA loading. On a Cyclone the load is quite fast but on larger FPGA's it can be an issue ... anyway common workarounds are to try with the slot powered on do a warm restart to see if the PC will restart without power cycling the PCIe slots. Or, you can supply power from the external supply and get the Cyclone configured up ahead of restarting the PC. ... The alternative is to figure out what the PC BIOS is complaining about and work back from that.
I have also seen BIOS's that lock out slots PCIe slots as a security measure to avoid the addition of PCIe cards ... you may want to check if this is an issue the BIOS is complaining about. Best Regards, Bob.
