• 1 Post
  • 68 Comments
Joined 2 years ago
cake
Cake day: June 7th, 2023

help-circle

  • Regarding mini PCs; Beware of RAM overheating!

    I bought some Minisforum HM90 for Proxmox selfhosting, installed 64gb RAM (2x32gb DDR4 3200MHz sticks), ran memtest first to ensure the RAM was good, and all 3 mini PCs failed to various degrees.

    The “best” would run for a couple of days and tens of passes before throwing multiple errors (tens of errors) then run for another few days without errors.

    Turns out the RAM overheated. 85-95 C surface temperature. (There’s almost no space or openings for air circulation on that side of the PC). Taking the lid off the PC, let 2/3 computers run memtest for a week with no errors, but one still gave the occasional error bursts. RAM surface temperature with the lid off was still 80-85 C.

    Adding a small fan creating a small draft dropped the temperature to 55-60 C. I then left the computer running memtest for a few weeks while I was away, then another few weeks while busy with other stuff. It has now been 6 weeks of continuous memtest, so I’m fairly confident in the integrity of the RAM, as long as they’re cold.

    Turns out also some, but not all, RAM sticks have onboard temperature sensors. lm-sensors can read the RAM temperature, if the sticks have the sensor. So I’m making a Arduino solution to monitor the temperature with a IR sensor and also control an extra fan.



  • +1 for SingleFile

    I recently tried LinkWarden, Linkding and Archivebox for making offline copies. They all had the same issue of running in to a Captcha or login wall for the sites I wanted to capture.
    SingleFile to the rescue, as it uses your current browser session as a logged in and verified human.

    Linkeding allows you to upload the singlefile html file attached to it link, but I didn’t see such an option for Linkwarden.




  • This has been my thinking too.

    Though after reading mbirth’s comment I realised it’s possible to use named volumes and explicitly tell it where on disk to store the volume:

        volumes:
          - my-named-volume:/data/
    volumes:
      my-named-volume:
        driver: local
        driver_opts:
          type: none
          device: "./folder-next-to-compose-yml"
          # device: "/path/to/well/known/folder"
          o: bind
    

    It’s a bit verbose, but at least I know which folder and partition holds the data, while keeping the benefits of named volumes.



  • Wow thanks for this! Reading the official docker documentation I somehow missed this. Using regular well documented linux mount.<type> tools and options will be so much better than looking for docker-specific documentation for every single type.

    And knowing the docker container won’t start unless the mount is available solves so much.
    Does the container stop or freeze if the mount becomes unavailable? For example if the smb share host goes offline?






  • Syncthing is probably the best option. It’ll keep a copy on both devices, and can sync any changes made on any device. It’s a direct connection, no intermediary server required.

    Another way, which is a bit round-about, but surprisingly easy: Install Zim Desktop Wiki (a notebook app), enable its built-in web server, and add your PDF to the Zim notebook. From the iPad use the web browser to open your Zim notebook (Assuming both are on the same wi-fi). This is read-only from the iPad, can’t make changes.



  • OnlyOffice is also available as a (offline) desktop office suite, so as a user it’s more like LibreOffice than Collabora.

    My wife prefers OnlyOffice over LibreOffice, as it’s feels closer to MS Office. Also it’s compatibility with MS Office formats is better than LibreOffice.

    I still use LibreOffice for desktop, but I’m not a heavy user. Haven’t tried out Collabora or hosted OnlyOffice for NextCloud yet.


  • KDE has a huge amount amount of configurable keyboard shortcuts, even many that are not assigned by default. Check out the keyboard shortcuts settings in each app, and in KDE Plasma Settings app.

    For moving selected files in Dolphin (and any other file browser) I’ve always just used Ctrl+X Ctrl+V.

    (Btw sounds like you’re talking about the “context menu” button, and it’s my personal pet peeve that this button is missing from many modern keyboards and laptops. On older Windows you used to be able to do Shift+F10 to get the context menu , but that doesn’t work anymore so my main use for the mouse is right-clicking…)