<div dir="ltr"><div><div style="font-family:tahoma,sans-serif;font-size:large" class="gmail_default">I would be curious to know the CPU temp and fan speed at both settings of "Performance> and <Balanced>, I wonder if the thermal paste needs to be replaced after 6+ years of use?</div><div style="font-family:tahoma,sans-serif;font-size:large" class="gmail_default"><br></div><div style="font-family:tahoma,sans-serif;font-size:large" class="gmail_default">The results of this command might shed some light --</div><div style="font-family:tahoma,sans-serif;font-size:large" class="gmail_default">inxi -s</div><br clear="all"></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><i><font size="4"><span style="font-family:comic sans ms,sans-serif"></span></font></i></div><div><i><font size="4"><span style="font-family:comic sans ms,sans-serif">Ron S.</span></font></i></div></div></div></div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Mar 19, 2026 at 11:23\u202fAM Khalid Baheyeldin <<a href="mailto:kb@2bits.com">kb@2bits.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I alluded to this in a previous message, so here are the details.<br>
<br>
I got a used 2019 Intel NUC to replace the Raspberry Pi 4 that is<br>
running Home Assistant.<br>
<br>
The Pi worked well for many years, but after I moved WeeWx to it, one<br>
CPU is tied up for some time running only that.<br>
It still can cope, but I don't want to continue running from an SD card.<br>
<br>
So the NUC was equipped with a used M.2 NVMe SSD.<br>
<br>
But the machine would freeze after several hours, despite not running<br>
anything at all yet.<br>
<br>
I did testing for several days per iteration<br>
<br>
- Running from a 2.5" SSD in a USB case (works fine)<br>
- Same 2.5" SSD connected internally over SATA (works fine)<br>
- NVMe in a USB case (works fine)<br>
- NVMe internally via M.2 (this one hangs)<br>
<br>
As an experiment, I used CoPilot to see what can be done about this issue.<br>
It recommended several kernel parameters, such as:<br>
<br>
nvme_core.default_ps_max_latency_us=0<br>
nvme.noacpi=1<br>
nvme_core.force_apst=0<br>
pcie_aspm=off<br>
<br>
None of the above worked.<br>
<br>
I also tried updating the BIOS, but still, it froze after several hours.<br>
<br>
What worked was<br>
- Changing the BIOS "Power" profile from "Performance" to "Balanced"<br>
- Disabling "PCIe ASPM" (though one of the kernel parameters is<br>
supposed to do that)<br>
<br>
And that made the NUC very stable.<br>
<br>
Maybe this will help someone ...<br>
-- <br>
Khalid M. Baheyeldin<br>
<br>
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</blockquote></div>