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-   -   System freeze when not under load 20 seconds after wake from sleep (https://www.overclock.net/forum/6-intel-motherboards/1718322-system-freeze-when-not-under-load-20-seconds-after-wake-sleep.html)

jfriend00 01-14-2019 07:26 PM

System freeze when not under load 20 seconds after wake from sleep
 
I have a weird issue that pops up every few days. Every once in a while after I wake the computer up from sleep, it freezes. Not immediately, but perhaps 20 seconds after I've starting interacting with it. Here's a typical sequence.

Computer goes to sleep (not hibernate).
Some long time later, I come by the computer and wiggle the mouse to wake it up.
Screen comes on, I enter my password and login.
I start doing something like load a web page or two. Things seem perfectly fine.
Then, about 20 seconds after I started interacting with it, everything freezes.
Mouse and keyboard are unresponsive. Nothing changes on the screen. Ctrl-Alt-Del doesn't do anything.
I have no way of knowing if the CPU is actually frozen or if it's just my USB input devices that are frozen.
I end up having to hard power down (hold power switch down) in order to restart.

You can see the system in my sig below. It's been pretty thoroughly tested in Prime95, RAMTest and MemTest86 so I'm unsure how it could be directly related to the overclock plus there's really nothing going on when it freezes other than my typing or clicking in the browser plus whatever system services might be doing. It's not like there is any stress on the system at the time. I bumped the CPU offset voltage up 0.1V and it did not make a difference.

Any ideas where to look? What to try? How to test for a problem?

jfriend00 01-15-2019 01:27 PM

I tried the Windows troubleshooter. When I tried hardware troubleshooting, it reported I didn't have drivers for some parts of my hardware (PCI Data Acquisition, SM Bus Controller, etc...). So, I reinstalled drivers from ASRock's site for my motherboard. Until I came to the Bluetooth driver. Just trying to install that driver would hang the system (complete lockup). I tried all sorts of things, including removing all overclock and nothing would fix it.

When I ran the Windows troubleshooter after this, it too would hang and lock the whole system up when it got to the "scanning for hardware changes" step. Googling for that issue, I came across this thread in the ASRock support forum about a very similar issue. One solution there was to install the drivers from the DVD that came with the motherboard, not from the website. I tried that and the Windows Troubleshooter now runs fine (without hanging) and reports no issues any more. So, I did at least fix an issue.

Whether that issue has anything to do with my system hangs after waking up from sleep will be determined after many more days of usage. It seems plausible they could be related, but who knows. Since the hang was far from repeatable, it will probably take a week of usage without seeing the problem to know that is has gone away.

ThrashZone 01-15-2019 01:34 PM

Hi,
I would frankly disable blue tooth and even wifi features in bios if you don't use either.

jfriend00 01-15-2019 01:41 PM

Quote:

Originally Posted by ThrashZone (Post 27808230)
Hi,
I would frankly disable blue tooth and even wifi features in bios if you don't use either.

I do use Bluetooth headphones. Don't currently use WiFi.

jfriend00 01-15-2019 03:29 PM

Well, installing the missing drivers did not fix the problem. It's still there. I went to lunch for an hour. Came back, woke up my computer with the mouse, logged in, loaded a couple web pages and boom, the system froze again. Back to square one.

speed_demon 01-15-2019 03:31 PM

How recent is your install of windows? Have you made any upgrades or large changes since your last fresh install?

jfriend00 01-15-2019 04:00 PM

Quote:

Originally Posted by speed_demon (Post 27808408)
How recent is your install of windows? Have you made any upgrades or large changes since your last fresh install?

I built this system from scratch in December so that's when Windows was installed. It is up-to-date with all driver updates and all Windows updates. I think the problem has been there from day one, but it appears to be more common now.

I haven't made any large changes or upgrades since I built the system other than installing my usual suite of software (same software I ran on my previous system).

wingman99 01-16-2019 01:55 PM

Have you tried to run the processor and memory at default BIOS settings?

jfriend00 01-16-2019 02:32 PM

Quote:

Originally Posted by wingman99 (Post 27809880)
Have you tried to run the processor and memory at default BIOS settings?

That's on my list of things to try - though it's amazing how much more sluggish the computer feels when running that way.

Right now I'm running with a new BIOS version just released yesterday v1.90 that lists "fixed PCIE issues", so since I have three PCIE devices (two NVMe drives and a graphics card), I'm hoping that makes a difference. The challenge is the problem is so intermittent that it may take 4-5 days before you're convinced it's gone.

jfriend00 01-16-2019 11:18 PM

I got another freeze today after the BIOS upgrade so that shot-in-the-dark apparently wasn't the solution (darn).

I've removed the CPU overclock (still have the DRAM overclock) and will run for several days to see if that's related.

I wish I understood better what types of failures could cause a freeze when the system is lightly or barely loaded. To fully explain, I wake up the computer with the mouse, login, interact with the computer (usually load a web page or two in Chrome) and then it freezes. The screen keeps displaying, but no input devices do anything (mouse, keyboard, Ctrl-Alt-Del, etc...). The only thing I can do is power down and then power up again to reboot. The freeze never happens under stress test. It never happens except shortly after waking from a sleep. And, weirdly, the computer is already woken up and I've done a number of things on it before the freeze happens. I wish I knew what kind of hardware things could cause this type of a freeze.


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