I asked Gemini about c-state control
https://g.co/gemini/share/2d65e90e333f
also chatgpt said this
Why Disable C-State Control?
Transitions between C-States can sometimes cause instability, especially if:
The CPU or motherboard's power delivery isn't functioning perfectly.
There is a bug in...
I posted a question on gigabyte support - they said this
<quote>
Please try to install BIOS F12 by Q-Flash Plus, clear CMOS and disable "C-State control", use clean OS disk and install drivers to test the issue.
You can remove the onboard peripherals and devices, only install one DDR on A2 slot...
yeah it crashes when it's doing nothing, it's never under any significant load. I've had three or four blue screen crashes but mostly it just restarts unexpectedly (without shutting down properly) as if someone hit the hardware reset button.
Nope, not yet. A few days ago I finally convinced myself it wasn't software causing the crashes so the shop swapped the CPU but a few hours after I got the machine home it crashed again. So it's gone back to the shop for more investigation. The trouble is it can take more than a week to crash...
Got another event 41 black screen restart/ crash. When OOCT was running testing all cores, Windows asked me if I want to update/install GIT for windows which I said yes. This caused OCCT to overheat and stop the test. I then left the machine alone and ten minutes later it got a spurious...
ok, done that, thanks. I've found that I can run the OCCT "cpu plus ram" test set to steady load and testing all cores simultaneously with a temperature limit of 94 degrees and the test keeps running. The "cpu package" temperature looks like it might be creeping up and will cause the test to...
ok, thanks, just in case I've copied some of the event logs to my google drive and shared them in case there's any experts in windows event logs here. Windows is forever logging errors of various types.
https://drive.google.com/drive/folders/11xHHHdmMC6tj2y86JixdYc4QnnIzZJJl?usp=sharing
Regarding the fan connectors, I couldn't really see what was plugged into what. but OCCT shows the CPU fan running at around 1150 RPM and doesn't show CPU-OPT at all.
https://www.manual.nz/gigabyte/z790-ud-ax/manual?p=4
Regarding the instant 100 degrees C, I just tried OCCT again on the CPU...
CPU fan speed was set to quiet, I've changed it to normal.
CPU-Fan control mode is set to auto, not PWM - I left it at auto
cpu fan mode is set to slope
cpu fan fail warning was set to disabled, I've changed to enabled.
I just ran the GigaByte control center to check the fan speeds and found that the selector for the fans mode was set to manual, The fan was running at 1200 Hz or so. After asking Gemini I set the fan mode to "normal" but the fan speeds and temperatures didn't change. I suspect it was running...
I had no spurious restarts for 3 days but today I tried connecting with Remote Desktop Connection and it restarted/crashed twice at the instant I tried connecting with an invalid password. I tried the OCCT CPU test but it instantly hit 100 degrees C so I've changed it to run the cpu plus RAM...
Thanks. I decided to run prime95 to start with, while I'm still using the PC. hwinfo reports 3 or 4 temps of around 100C and highlights in red. Supposedly that is normal for this CPU.
When I run OCCT what do I look for regarding temps - does it display temperatures and do I need to manually...
The best desktop technician the shop has is away for the next couple of weeks so I plan to switch to another PC and try running some test software on the I7 14700 at home for a few days. Do you know of any software that I can run on the PC to stress test it that runs continuously. If it...
Thanks. I'm calling in to the shop today to see what they think. With the machine on its side, that would make the motherboard lying flat down and the fan on top of that - is that correct?
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