New PC experiences unexpected soft restarts without any issues
New PC experiences unexpected soft restarts without any issues
I've recently set up a system for a friend using:
Windows 11
ASUS PRIME X670-P
AMD Ryzen 7 7700X
Gigabyte AERO 4070 OC
Corsair Vengeance RGB 32GB (2x 16GB) DDR5 5600MHz C36
Cooler Master V850 SFX 850W
Samsung 1tb M.2
3 Fan AIO on the CPU
DOCP turned off
Latest BIOS installed
Periodically, the system behaves like a "soft reboot" — it doesn’t actually power cycle or restart. The LED stays on without powering up, and the monitor displays "DP Disconnected" for a few seconds before showing the Windows logo with a spinning circle. When logging in, the login screen appears as if the PC restarted, but any open programs won’t reopen.
I suspect this might be related to a PSU issue, given that the system runs an SFX despite its form factor, but without power cycling it’s unclear. The lack of visible power cycling has left me puzzled.
This error occurs frequently, and I’ve tried several fixes online without success:
- Disabled DOCP (previously enabled)
- Turned off automatic restart (per another forum post)
- Checked temperatures during medium load (CPU 56, GPU 39)
- Cleanly reinstalled GPU drivers using DDU
- Disabled G-Sync/Adaptive sync in the monitor OSD
Any insight into why this might be happening?
Examine the reliability history and monitor the event viewer for any error codes, warnings, or informational events around the time of the "soft reboots".
Another step involves powering down, unplugging, and opening the case.
Verify all connections according to the component documentation.
Then gently disconnect and reconnect everything—connectors, cards, jumpers, RAM, and case links—several times. Use a bright flashlight to check for any damage or debris.
Be careful not to force anything, especially with a new build. What feels secure might not be accurate.
It’s likely that after a few disconnects and reconnects, things will settle more smoothly.
Follow the documentation instructions carefully; take your time and stay methodical.
Final reminder: manually download all drivers from the manufacturer's website, reinstall and reconfigure. Avoid third-party tools or installers.
Sure, with DOCP enabled the clock speed is 5600 MHZ, but it slows down to 4800MHZ when it's off. Is there anything concerning this behavior? Can I adjust the DOCP to 5200MHZ? I've checked the internal components and everything seems fine—re-seated the GPU and RAM. I'm planning a full Windows reinstall just in case, since the PC is brand new and nothing critical is present yet. I'll update once it works out.