If your graphics are still ok, I prefer gkellm to read temps and display loads.
70C is at the very upper end of acceptable cpu temps, and is
probably the root cause of your lockups. How hot is the intake
airflow? Check the airflow for obstructions like dirt or
cat-hair, and then pull the cooler off the cpu and replace the
thermal paste. Idle cpu temps should be in the 25-30C range, and
under full load it should be getting into the 50-58C bracket. At
70C any intel processor is probably malfunctioning, not to mention
drastically reducing its operational life. Even your memory slots
are probably getting too hot.
If this is a custom build as stated, are you using a big enough
cooler, or one for a less-hungry processor?
--
John Mellor
On 2020-03-19 7:53 a.m., George N.
White III wrote:
On Thu, 19 Mar 2020 at 00:58, home user <mattisonw@xxxxxxxxxxx> wrote:
--(I'm not sure who I'm replying to!)
I realize I'm not a good writer, but am I really this bad?!
It would be helpful to have one message to collect all the details. I'mfollowing issues across multiple forums and it is easy to get confusedover information from an earlier post.
The "freezes" are not screen blankings. After booting the F31 live
image from the USB stick,
I launched Firefox. I started typing in the URL to load the fedora
HYPERKITTY. Midway through that, the workstation suddenly stopped
responding. The display did *not* go blank, go crazy, or anything
else. The f31 background, Firefox, and the usual things at the top of
one screen continued to show, but not change. It looked normal.
Nothing would happen in response to my typing or using my trackball.
Only when I pressed one of the 2 buttons on the top of the tower case
did the screen change (go black).
It would be helpful to know what those buttons do. I can guess that oneis power and one is reset. As has been mentioned, the ability to do a resetcan rule out some issues where the graphics device doesn't get properlyinitialized on a reboot.
If pressing that button on the top of the tower case is doing a hardware
reset, then it was necessary. I could also have toggled the power
switch near the bottom of the back of the tower case.
The rear power switch is used to remove all power, e.g., when swappingcards or trying to eliminate the small power consumption when the systemis "off" but can be woken up via a front panel button or LAN.
The freezes as I described above in this post happen only when I booted
the f30 live image from the USB stick (but not every time I did that),
never when I boot the f31 live image from a USB stick,
never when I boot f30 from the hard drive,
never when I boot windows-7 from the hard drive.
The same is true of the hot CPU warnings.
Yes, either the CPU or the motherboard has some built-in video. (The
CPU, the motherboard, and the memory were bought separately.)
By the way, I also noticed that the memory tests had the CPU (not the
GPU) cooking at over 70 degrees centigrade.
Name brand vendors put a lot of expensive engineering into airflow andcooling. Homebrew systems often have overkill numbers fans and CPUcoolers, but airflow patterns don't allow the coolers to work at fullcapacity. Still, with the GPU idle during memory tests, I'm surprisedthat the CPU gets hot -- have you refreshed the thermal compoundbetween CPU and heat sink?
See:
Question:
During a typical session (booted from the hard drive), I (even as an
unprivileged user) can launch the NVIDIA X Server Settings GUI to look
at the GPU temperature. Is there a way to check the CPU temperature
during a typical session (root, admin, or unprivileged user)?
For CPU temperature there is a GNOME shell extensions called Sensors. It uses lm_sensors. See:https://www.ostechnix.com/view-cpu-temperature-linux/ for ways to use
lm_sensors in a terminal (or ssh session, which is what I have used in the past with headlessservers).
George N. White III
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