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    SAS Controller disappears after reboot

    I have 2 Supermicro H12SSL-CT motherboards, one of them has been doing something strange. When I reboot, the SAS adapter gets disabled, if I shut down, pull the power, and then boot - it comes back - but only until I reboot the system - then poof! it is gone! Any ideas on what I should look at...
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    H12SSL and Epyc can't handle the ram

    I just got a SuperMicro H12SSL motherboard and an AMD Epyc 7313 processor. The board boots up just fine and is running Linux like a champ - but only with half the ram installed. But I got 8x64GB memory sticks, and if I put in more than half of them the system refuses to post. I can get into the...