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Re: Cooling a HP desktop

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On Wed, 6/3/2026 6:18 PM, sticks wrote:
> On 6/1/2026 9:31 PM, Paul wrote:
>> On Mon, 6/1/2026 4:15 PM, sticks wrote:
> 
> ---big snip---
> 
>> But at least at the moment, you've corrected the worst part
>> of what those idiots did. It should have had that fan in there.
> 
> First, thanks for your valuable input, as always!
> 
> Well, I thought I had the problem all sorted out, and yes, adding the case fan does lower the operating temperature nicely.  However, I noticed the temps creeping back up again when the computer idled for a long time.  One time it was up to almost 150F.  I believe the manufacturers believe this is an acceptable temp for this Ultra 5, but I see no reason to have it running that hot if I could find a way around it.  So I began my search for why when left unattended it was doing this.
> 
> After many, many suggested fixes working with AI, nothing really worked.  Processor upper and lower powers, eliminating anything in device manager that had power options to turn off a device, anything on the bus that had power options was turned to not allow, and many other things I can't remember at the moment.
> 
> I decided to install Fan Control, and that again helped, but didn't solve the problem.  In the end, nothing mattered as the system after a period of inactivity assumed the system was idle and turned the fans off, amazingly.  I even gave it a special task in task manager that was supposed to override the windows attempts to slow things down.  Didn't work.  The case fan does not have a speed sensor evidently, but Fan Control does allow me to manually set it to run at different levels, and I have it set for 60% for these summer months in the garage.  Not sure if it is windows or HP, but neither cared and after an unknown exact time both fans continued shutting down no matter what I did.
> 
> What finally after two days appears to work, is a software mouse activity tool.  I installed Mouse Jiggler and for an hour and a half in 85F garage it stayed right at 100F with both fans continuing to work.  I set the time to jiggle at 49 seconds, after thinking it might even decide to save power after one minute, and it seems to work.  Defender did not block the app, but just to be safe I went ahead and whitelisted it.
> 
> Now, I'll just monitor it for a while and hope it all works.
> 

When equipment does this, you bypass the header.

You will need a 4 pin Molex to 3 pin fan header, and you can plug
the fan into that fan header. That would run the fan at 100%.

   # It has two pins in the three pin fan header shroud. The shroud
   # is there to provide a bit of protection from a "male" connector
   # shorting to the computer case if it comes loose. Male connectors
   # are also available without a shroud, and then there is more danger.
   # This would not accept a four pin PWM fan... but a three pin fan is fine.

   https://www.akyga.com/upl/app/products/images2/big-webp/bd1f8e8458f24c10cf6677d0c20201b9.webp.jpg

And without any electrical mods, you can locate a "stealth" 92mm fan,
which will have say 1200RPM at 12V and then the noise level of that
will not be irritating, and you can leave it running like that
as a case-emptying fan. Such a fan might say "12V @ 0.1 amps" on the hub.

The BIOS logic in this case, is likely monitoring for 60C and
it shuts off the fans until the temp is above 60C. My video card
does this. Most of the time, the video card is about 35C and it
doesn't even need the fan (only Furmark causes the fan to come on).

And yes, I've even bypassed the +5V on a video card fan
to cause it to run continuously. I just haven't done it to
this (newer) video card.

I generally like airflow... for all the materials in the
PC where the temperature is not monitored.

As an example, one Asus motherboard had a tiny 8 pin regulator,
which ran at 100C all the time. Someone detected this with a
thermal scan of the motherboard, that it had a "hot item" onboard.
While the device can likely tolerate this, it's still
not a good look. And for such cases, a person could buy
a RAMSink and the Arctic Silver two component thermal epoxy
to mount it. Or a RAMSink with thermal tape on it. The thermal
epoxy is non-removable -- you can mix the AS Epoxy with a third
substance to "weaken it" and make it possible to remove it.

You can likely spend a bit more time, considering your options
for a fan. Giving the fan an "assured" power source, will keep
the BIOS from switching it off. And then you won't need the mouse jiggler.

   Paul

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Cooling a HP desktop sticks <wolverine01@charter.net> - 2026-05-31 19:07 -0500
  Re: Cooling a HP desktop sticks <wolverine01@charter.net> - 2026-05-31 20:31 -0500
    Re: Cooling a HP desktop Paul <nospam@needed.invalid> - 2026-05-31 23:19 -0400
      Re: Cooling a HP desktop sticks <wolverine01@charter.net> - 2026-06-01 15:15 -0500
        Re: Cooling a HP desktop Paul <nospam@needed.invalid> - 2026-06-01 22:31 -0400
          Re: Cooling a HP desktop sticks <wolverine01@charter.net> - 2026-06-03 17:18 -0500
            Re: Cooling a HP desktop Paul <nospam@needed.invalid> - 2026-06-03 19:45 -0400
              Re: Cooling a HP desktop sticks <wolverine01@charter.net> - 2026-06-04 09:23 -0500
                Re: Cooling a HP desktop Paul <nospam@needed.invalid> - 2026-06-04 13:26 -0400
                Re: Cooling a HP desktop sticks <wolverine01@charter.net> - 2026-06-06 10:38 -0500
                Re: Cooling a HP desktop "Carlos E.R." <robin_listas@es.invalid> - 2026-06-06 19:19 +0200
                Re: Cooling a HP desktop Paul <nospam@needed.invalid> - 2026-06-07 03:09 -0400
                Re: Cooling a HP desktop "Carlos E.R." <robin_listas@es.invalid> - 2026-06-07 14:55 +0200
                Re: Cooling a HP desktop Paul <nospam@needed.invalid> - 2026-06-07 14:46 -0400
                Re: Cooling a HP desktop "Carlos E.R." <robin_listas@es.invalid> - 2026-06-07 23:18 +0200
                Re: Cooling a HP desktop Paul <nospam@needed.invalid> - 2026-06-07 18:56 -0400
                Re: Cooling a HP desktop Paul <nospam@needed.invalid> - 2026-06-07 22:09 -0400

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