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Groups > alt.comp.os.windows-11 > #18463

Re: memory usage vs fan usage

From VanguardLH <V@nguard.LH>
Newsgroups alt.comp.os.windows-11
Subject Re: memory usage vs fan usage
Date 2025-04-17 11:59 -0500
Organization Usenet Elder
Message-ID <d3rztgut6pgy.dlg@v.nguard.lh> (permalink)
References <m6cgr0Fa4thU1@mid.individual.net>

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Andy Burns <usenet@andyburns.uk> wrote:

> Both of my laptops have sufficient RAM for what they do
> (Win11 Home=16GB, Win11 Pro=32GB) home machine for "home stuff", pro 
> machine for "work stuff"
> 
> Neither has to do much paging, perhaps peak at 100 faults/sec during 
> loading large apps, then calms down to single digits or zero afterwards
> 
> It always annoys me that as the amount of memory used (by total 
> committed) increases, so does the chance/speed the fans are spinning, if 
> the fan use was proportional to paging I'd kind of understand.
> 
> Memory chips don't know if part of them is allocated to a process or 
> not, right?  Other than maybe some garbage collection, nothing goes 
> around flipping bits for fun, right?
> 
> So how does being allocated, even when sitting idle, influence cooling 
> required?
> 
> Anyway, I've always been a bit suspicious of the MemoryCompression 
> service, so I'm experimenting with it turned off for a bit.
> (powershell disable-mmagent -mc)
> 
> And it's the first time in years I have firefox and thunderbird both 
> running with no fans in use ... not conclusive yet, but interesting ...

I've never had a box setup where there were thermal sensors and fans on
the memory modules themselves.  At most, I've had heat spreaders on the
memory modules.  The thermal sensors were in the CPU, GPU, PSU, and mobo
that affected changes in fan speeds.  RAM is not a large contributor to
the heat inside the case the fans are to exchange or expel.  Even
spinners generate more heat (when used, of course).

If more RAM is being allocated for non-suspended processes then the more
activity the CPU sees, and it generates more heat.  Some processes
generate lots of CPU heat, like when using Prime95 to burn in a new
build.  More RAM allows more frames/sec in games, so more heat at the
GPU, and probably the CPU, too.  While games may use some page space,
most will preload their textures and objects into memory to up their
performance.  Overclocking also generates more heat from everything
since supposedly you overclock to up speed.  As part of overclocking,
often you have to up the voltage when upping the clock speed, and more
voltage means more power consumed, so more heat.

Use a temperature monitor to look at the temp sensors available in your
setup.  When the fans speed up, look at where was the rise in temps.
That will let you see temperature change for a component (CPU, GPU,
etc), but not cause by process.  You could also monitor CPU usage on
processes to see which are highest when the fans come on.

As far as the memory modules go, yes, the more accesses the more heat.
If accessed, the RAM isn't idle.

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Thread

memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-17 15:16 +0100
  Re: memory usage vs fan usage Paul <nospam@needed.invalid> - 2025-04-17 12:09 -0400
    Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-17 19:57 +0100
      Re: memory usage vs fan usage Paul <nospam@needed.invalid> - 2025-04-18 03:15 -0400
  Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-17 11:59 -0500
    Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-17 19:40 +0100
      Re: memory usage vs fan usage Frank Slootweg <this@ddress.is.invalid> - 2025-04-19 12:04 +0000
        Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-19 13:36 +0100
          Re: memory usage vs fan usage Paul <nospam@needed.invalid> - 2025-04-19 09:25 -0400
          Re: memory usage vs fan usage Frank Slootweg <this@ddress.is.invalid> - 2025-04-19 14:54 +0000
            Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-19 16:16 +0100
            Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-24 08:17 +0100
              Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-24 05:14 -0500
                Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-24 11:30 +0100
                Re: memory usage vs fan usage Paul <nospam@needed.invalid> - 2025-04-24 09:08 -0400
                Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-24 20:59 -0500
                Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-25 07:40 +0100
                Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-25 19:13 +0100
                Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-25 22:29 -0500
                Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-26 10:31 +0100
                Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-26 15:05 -0500
        Re: memory usage vs fan usage "Carlos E.R." <robin_listas@es.invalid> - 2025-04-19 14:36 +0200
          Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-19 13:56 +0100
          Re: memory usage vs fan usage Paul <nospam@needed.invalid> - 2025-04-19 09:28 -0400
  Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-17 15:07 -0500
    Re: memory usage vs fan usage "Carlos E.R." <robin_listas@es.invalid> - 2025-04-17 22:25 +0200
      Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-17 19:30 -0500
        Re: memory usage vs fan usage "Carlos E.R." <robin_listas@es.invalid> - 2025-04-18 14:09 +0200
          Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-18 11:13 -0500
            Re: memory usage vs fan usage "Carlos E.R." <robin_listas@es.invalid> - 2025-04-18 21:33 +0200
    Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-17 22:12 +0100
      Re: memory usage vs fan usage VanguardLH <V@nguard.LH> - 2025-04-17 20:07 -0500
      Re: memory usage vs fan usage Paul <nospam@needed.invalid> - 2025-04-18 05:24 -0400
        Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-18 12:08 +0100
          Re: memory usage vs fan usage Frank Slootweg <this@ddress.is.invalid> - 2025-04-18 18:09 +0000
            Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-18 19:36 +0100
  Re: memory usage vs fan usage "Carlos E.R." <robin_listas@es.invalid> - 2025-04-17 22:29 +0200
    Re: memory usage vs fan usage Andy Burns <usenet@andyburns.uk> - 2025-04-17 22:17 +0100
      Re: memory usage vs fan usage "Carlos E.R." <robin_listas@es.invalid> - 2025-04-18 02:19 +0200
      Re: memory usage vs fan usage Paul <nospam@needed.invalid> - 2025-04-18 05:52 -0400

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