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Cooling Cooling a Ryzen 5900X and Crappy Motherboard (Was: Cooling a Ryzen 9 9950X... on air?)

Discussion in 'Hardware' started by Gareth Halfacree, 3 Apr 2025.

  1. yuusou

    yuusou Multimodder

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    I thought I'd set MrsYuu's PC's curve optimizer to -25. I logged into the bios the other day to check, it's at -30! Mine peaks at -20.
    I'm interested in that adapter for the 120mm fan. I inherited one of those stock coolers but the fan has had some kind of hit or something, it's so loud.
     
  2. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    It's this one, which @AlexB very kindly printed for me. You'd need to do it in PETG or ABS or some other relatively high-temperature material, or there's a risk of the plastic softening under heavy load and loosening the clips that hold it in place.

    Like I say, installation's a bit of a pain: it blocks the lever on the mounting clip, so you have to install the heatsink with no fan first. Then you can't easily clip it on with a fan installed, as you have to bend it to get the clips in place, so you need to install it without a fan then screw the fan into place - which is much easier if you're using passthrough bolts than grubscrews.

    The end result for all your effort is worse cooling performance than before - but if the fan's knacked anyway, it'll definitely fix that!
     
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  3. Byron C

    Byron C I was told there would be cheesecake…?

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    Ah yes, I forgot that... And also missed where it said that on the page I linked to… :grin:

    Oh well look at Mister Bloody Lah-Dee-Dah-Fancypants over ‘ere, paying for his OS an’ everythin’! Well you sure told me, di’n’t you?! I’ll just go sit in a corner, shut my gob, an’ never talk to anyone else ever again, shall I?!

    :hehe:

    It probably doesn’t need to be said that this is entirely in jest and not in any way sincere, but I’m saying it anyway :happy:.

    But still… update your flippin’ OS! :lol:

    I’m guessing that’s the adapter that AlexB 3D printed for you? I did see your thread about it and meant to reply, but he got there before I had a chance to have a proper look :happy:.

    Bit of a shame that it doesn’t fully shroud the heatsink, or have some kind of airflow guide. If I ever get time (hah!) I’ll see if I can find something else that might do the trick. My CAD skills aren’t up to designing something myself, and unfortunately I’m not going to be learning any time soon…
     
  4. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    Free for up to five machines - costs me nowt!
    I know, I know, I'm starting to run into trouble 'cos of an outdated libc. It's just so easy not to, tho' - most (but not all) things I can't update natively work fine as a Flatpak. I'm running GIMP 3.0.2 right now!
     
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  5. Byron C

    Byron C I was told there would be cheesecake…?

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    Thought that was the one.

    Aye, the glass transition temperature of PLA - the point at which it starts to soften - is around 60C. If that was an ambient temperature then it’d be pretty dang hot in that case… But for something that’s in direct contact with a CPU heatsink, it’s not beyond the realms of possibility that it could approach 60C.

    That transition point for PETG is around 75-85C, so that gives you a lot more headroom.

    ABS is even better though, the glass transition point is around 105C. The main disadvantage with ABS is its susceptibility to damage from UV. But unless something has gone very, very wrong - or Gareth wants to re-live the early days of modding by putting UV lights in his case - that will not be an issue in this use case :happy:
     
  6. IanW

    IanW Grumpy Old Git

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    24.04.2 LTS landed in February, for the shiniest LTS of all.
     
  7. sandys

    sandys Multimodder

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    Bit of CAD (cardboard aided design :D ) and duct tape, you're golden :D
     
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  8. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    One last change (for now): took out the 120mm side-panel intake. It was arguing with the new CPU fan, causing a sort of pulsing noise at idle. Doesn't seem to make any real difference to the temperature, and the VRMs should be getting plenty of air from the new CPU fan. Benchmark workload difference is margin-of-error stuff: 3m8.669s with, 3m9.294s without. Could be entirely attributable to different loads from background tasks, that.

    Had a little play with the Curve Optimiser while I was at it: crashed at -20 and -18, so I've gone back to -15. Should stop fiddlin' now, and start using it for actual work!
     
  9. GeorgeStorm

    GeorgeStorm Aggressive PC Builder

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    Reminds me of trying to overclock my parents pc to be able to play crysis, ended up spending more time tweaking than playing, and then fell down the extreme/competitive overclocking hole, you should give it a go it's great :D
     
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  10. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    Hard pass!
     
  11. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    Crash! Dropped PBO curve to -10.
     
  12. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    Couple more changes: bumped PBO curve up (err, down) to -12, which... seems stable, for now. Also figured out the trick to dropping the case fan minimum PWM duty cycle below 60%, which has made 'em even quieter than the old manually-controlled DC fans at idle while still being able to ramp up under load. And finally, I threw the old 140mm outtake from the roof into the side panel as an intake, under manual speed control. Doesn't fight with the 120mm on the heatsink like the other fan I tried, and now I don't have to find somewhere to store the damn thing!

    Happy days.
     
  13. sandys

    sandys Multimodder

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    Have you adjusted the PBO scalar, this will help raise the multi core clocks under load for your tesseract stuff, though whether you should on that board is another matter :D
     
  14. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    Yeah, probably best leaving that alone. I've already had to drop the curve back to -10 'cos it crashed...

    Still, even with it not boosting as far as it maybe could on a better board I'm looking at a rough doubling in performance for my given workload. Nowt to be sniffed it!
     
  15. bawjaws

    bawjaws Multimodder

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    Now you just need to calculate how much time you've spent fannying around with settings and crashes etc, then calculate how long it's going to take you to recoup that time from the gains you're seeing. And then throw yourself a little party once you reach that point :D
     
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  16. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    That is not a calculation that I'd like to do!

    (To be fair, the crashes don't take too long out of my day - couple of minutes to change a BIOS setting and reboot, and I don't usually lose any work 'cos I write in an autosaving web app thingy. Worst-timed ones might mean losing five or so minutes' work in the CMS and whatever I've stored in the RAM disk.)
     
  17. Byron C

    Byron C I was told there would be cheesecake…?

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    Is that just for the web-based stuff you do, like Hackster.io, or do you use similar tools when writing (or contributing to) books?

    I’ve been meaning to try and turn an old/spare laptop into a “this thing is for writing only and cannot do anything else” appliance, so just curious about your workflow.

    I learned LaTeX a while back (well… sort of…), and I do a lot in markdown at work (readme’s, docstrings, wikis, etc). I wrote a letter to a solicitor last week in LaTeX, and even my rarely-updated blog is a static site generator that uses markdown as the source. I can’t see myself doing any kind of “writing” in anything other than a code editor any more. VSCode for preference, but I’m going to start looking at Codium and similar, provided I can find replacements for the extensions I’ve come to rely on. (MS are starting to enforce their “do not use on non-MS products” licensing more and more by blocking usage of their extensions when installed on anything other than Microsoft Visual Studio Code. Presumably they’re getting a bit pissy about Cursor intentionally violating the license terms by reverse-proxying the VSCode extensions marketplace in their commercial product that’s derived from the open-source portions of the VSCode codebase… Which itself was derived from the open source Atom editor… [Embrace, Extend, Extinguish - it never went away.])
     
  18. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    It's for everything. It's a markdown editor, but I mostly treat it as plain text. Stackedit. Syncs with Google Drive, so no matter what device I'm on my files (file, really, I use it as a scratchpad) are there. If there's a crash, I just reopen Firefox and lose nothing. It's great.
     
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  19. Byron C

    Byron C I was told there would be cheesecake…?

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    Thanks :happy:

    Doesn’t seem to get much active development, assuming I’ve found the right GitHub page. I suppose it works well enough when using the main site as a progressive web app, but I’m assuming the pretty severe issues people are reporting with Google authentication are when they’re running/hosting it themselves. And self-hosting is definitely what I’d prefer.

    A while back I tried out using code-server deployed to Azure as a containerised web application. It worked well enough - I could do development on my iPad using just a web browser - but it was a total pig to configure and keep running.

    There are other projects now, like OpenVSCode Server, so I might revisit the idea. I could fire that up on login using a browser in kiosk mode. Automatic sync to GDrive, OneDrive, A.N. Other Cloud wouldn’t be impossible either, I’ve used rclone in the past for exactly that purpose. In fact… set it up as a container and the config gets even easier - just bind-mount a host filesystem directory for VSCode, rclone, etc, config files, and now you’ve got a stack you can deploy anywhere. Of course the complexity and compute requirements go up the moment you start talking Docker, so maybe not one for my “do nothing but writing” appliance intended for older or low-powered hardware…

    And now I’m gonna shut up and stop derailing matters by brain-dumping my train of thought :grin:
     
  20. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    Had another crash at -10, so I dropped to -5. So far, so good:

    16:08:00 up 3 days, 1:53, 1 user, load average: 0.78, 1.01, 0.89

    And no, I haven't upgraded the OS yet!
     

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