Server randomly rebooting with no error logs or dumps
Most unexpected server reboots trigger blank Kernel-Power 41 events with zero bugcheck parameters and leave management controller logs completely silent. Because these hard resets generate no minidumps or error entries, troubleshooting hits a dead end until underlying hardware issues like a failing UPS are identified.
What the numbers show
Counted from the threads quoted below. How we count
- People have been saying this in most months since September 2026.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Updating IDRAC and BIOS to the latest versionDid this help you?
- 2Running the server booted from a USB drive or different OSDid this help you?
- 3Connecting power supply legs to separate power sources instead of relying solely on the UPSDid this help you?
- 4performing hard rebootsDid this help you?
- 5holding September patchesDid this help you?
- 6Forcing a reboot by holding the power button.Did this help you?
- 7Capturing USB ETW traces during successful connections to compare behavior.Did this help you?
- 8Opening the device software at startup to see if it prevents the crash.Did this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Server hard-resets every 728.4 minutes ±1 min, 12 times running. No bugcheck, no iDRAC SEL entry, timer survives reboots. I'm out of ideas.”source ↗
“Every event is Kernel-Power 41 with BugcheckCode: 0 and all bugcheck parameters 0x0. No BSOD, no minidump, no MEMORY.DMP, ever.”source ↗
“iDRAC SEL — completely silent across all 15 crashes. Not one entry.”source ↗
“Starting early this morning some of our servers have been freezing up completely requiring a hard reboot.”source ↗
“Windows logs dont show anything specific right before the reboot.”source ↗
“I’m troubleshooting one business workstation that intermittently freezes completely when a DS-9100 dictation recorder is connected.”source ↗
“During a failure, mouse/keyboard input stops, Ctrl+Alt+Delete does nothing, and RDP cannot connect. Recovery requires holding the power button.”source ↗
“The System critical/error/warning entries checked around those windows contain no preceding error identifying the cause.”source ↗
“How would you capture the next natural hard hang when keyboard and remote access are unavailable?”source ↗
“Yup I've had servers randomly rebooting and it ended up being the 18 year old ups”source ↗
Where this came up
People with this problem also raised
- 3Windows Server 2019 fails to boot after cumulative update
- 4How to read system crash logs when you have no idea what you're doing
- 2Why does DNS stop working across the domain after an update?
- 12Thermostat showing low voltage and no power
- 3Website crashed after updating PHP version
- 4Furnace lights up briefly then hums and shuts off