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  • in reply to: DIMM recommendations #180863
    nova_robotics
    Participant

    I know this is an old thread, but someone might find use from this information.

    I have tried every combination of CPU and memory frequency, however Kingston ValueRAM KVR24E17D8/16 either fails to boot completely, or is horribly unstable. That’s an unbuffered DDR4 DIMM with ECC. We can put that firmly in the “Does not work” category.

    in reply to: Kernel vanilla #8512
    nova_robotics
    Participant

    Nice. I’m having the exact same problem. What version u-boot are you on? I just tried updating, but I’m still at 17.10.1.

    in reply to: Kernel vanilla #7952
    nova_robotics
    Participant

    Mainline Arch kernel seems to have been fixed for a while now. You need to edit the boot.txt file to point to the SingleShot dtb, if you have a SingleShot. Otherwise no issues.

    in reply to: DIMM Recomendation 2018/10 #7375
    nova_robotics
    Participant

    I just bought a 16 gig stick of Kingston ValueRAM with ECC (Kingston Technology ValueRAM 16GB 2400MHz DDR4 ECC CL17 DIMM 2Rx8 Desktop Memory (KVR24E17D8/16)).

    It works… for a while. Somewhere between a couple hours and a day and you’ll get a hard lock. If you push the board you can get it to happen faster.

    So learn from my mistakes. That particular stick does not work.

    in reply to: Kernel vanilla #7315
    nova_robotics
    Participant

    I’m having the exact same problem. The patch posted gets me further than I have been ever been able to get with the SFP+ ports on this board, and I am extremely grateful. But I think there’s a piece of the puzzle still missing.

    I have tried numerous 10G SFPs and they all kinda do the same thing. Bringing the connection up turns the laser on, and ethtool -m will show output power and received power as being good, and what you would expect to see. But Linux still seems to think there is no carrier, even though the laser is on and there is output and receive power according to ethtool.

    Is there any way to force carrier detection? I’m not above soldering to trick hardware signals.

Viewing 5 posts - 1 through 5 (of 5 total)

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