PC shutting down during inactivity – a genuine issue
PC shutting down during inactivity – a genuine issue
Hi,
I'm encountering pretty annoying problem that I can't seem to resolve.
I'm literally hopeless, so I hope you guys can do a miracle.
Reboots sometimes are 5 seconds after logging to Windows, sometimes after 20-30 minutes.
Background:
I recently upgraded my system:
- swapping out
Gigabyte RTX 3070 Eagle OC
for a
Gainward 4080 Super
- swapping out
SilentiumPC Supremo FM2 Gold 750W
PSU for a
Fortron Hydro Ti PRO 1000W Titanium
Other components:
- Gigabyte Z690 GAMING X DDR4
- Intel i9-12900K
- Crucial 32GB (4x8GB) 3600MHz CL16 Ballistix Black RGB
Problem description:
After replacing the GPU and PSU, and ensuring all cables were properly connected, my PC started randomly rebooting when
idle.
Here's what I've tried so far:
- Clean installed GPU drivers using
DDU
.
- Conducted tests on each component:
CPU stress test (
OCCT
)
GPU stress test (
OCCT
)
MEMTEST
TM5
test power stress test (
OCCT
)
Intel Processor Diagnostic Tool
- Ran
sfc
,
dism
, and
chkdsk
, and even reinstalled Windows (repair, not clean install).
- Investigated
Event Viewer
logs, noticed
Event 56 ACPI 2
errors before each reboot. Managed to resolve this (they are no longer appearing in
Event Viewer
) and a
BitLocker
error, but the problem with reboots persisted.
- Updated BIOS to the latest version (
F29
), enabled "
Power Loading
" option in BIOS, and disabled
C-States
("
C-States
" option to
Disabled
and second version -
Enabled
and blocked everything manually (
C1E, C6/C7 State Support, C8 State Support, C10 State Support
)).
- Disabled
power savings
options for
disks
and
PCI-Express
in
Windows Power Options
.
- Even tried to manuallny set
vcore offset / vdroop
in BIOS , but system didn't even boot and the VGA red LED was on (?).
- Took off 2 RAMs, then other 2 RAMs, used different slots.
- Trued using both: psu 12vhpwr <-> gpu 12vhpwr and psu 2x8 pin pcie -> adapter -> gpu 12vhpwr
used his GPU in my PC - no restart (~1 hour)
used mine GPU in his PC - no restart (~2 hours)
- Switched slot for GPU, used
PCIe 4
- reboot
- Switched slot settings for GPU, set
Gen3
for
CPU PCIe Link Speed
- didn't test enough since I'm half asleep, will test more tomorrow. UPDATE: 2 reboots on gen3.
Interestingly, my PC never crashes during rendering things or/and gaming sessions (2-4 hours renders or gaming at demanding titles).
It only occurs on idle periods and web/desktop activities. Despite all my efforts, the issue persists, and I'm running out of ideas.
Searching throught internet I've found most of these issues were cause by CPU getting too low voltage when idle, but it didn't help in my case (or did I miss something?).
Has anyone more ideas or possible solution? It's 6 days since I've started diagnosing PC and I still have no clue what is the issue.
Check Reliability History/Monitor for better user experience; it might show event patterns. Review Update History to identify any failed or problematic updates. Also, examine Task Scheduler for actions that cause a reboot.
I’m not concerned about checking Event Viewer; the only issues are Kernel 41 (shutdown) and no recurring patterns.
Updates are functioning properly, with everything current, including optional ones.
Reboot problems vary—sometimes they occur right after logging in, other times after 20 minutes.
Consider aspects beyond simple mistakes, such as warnings and informational messages. Clearing the Event Viewer logs might make new events more obvious and visible. The irregularity seems to point to a possible loose connection somewhere. Still, the issue could stem from two events happening together. One might be harmless individually, but when they occur simultaneously, it may trigger a reboot.
Reading back: "It only happens during idle times and while using the web or desktop." Do any fans slow down or stop? Are those moments when the PC cools and a connection loosens or something contracts, causing a short or reboot? Or could another process via Task Scheduler be responsible? This process might be what initiates the restart.
In any case, I expect the logs to record such occurrences. I’m leaning toward a physical cause—perhaps a short or disconnection somewhere.
= = = =
I verified each cable once after changing the PSU and cables, but perhaps another attempt would help.
Uncertain if it's related to cables or loose connectors—might be an issue with my PC and the friends' GPU during idle time.
"Reading back: "It only happens during idle periods and while using web/desktop". It's tough to tell, as fans barely move on idle with low temperatures. I've checked HWMonitor / HWInfo, but nothing unusual found.