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 people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Updating IDRAC and BIOS to the latest version
- 2Running the server booted from a USB drive or different OS
- 3Connecting power supply legs to separate power sources instead of relying solely on the UPS
- 4performing hard reboots
- 5holding September patches
In their words
Unedited, most upvoted first, 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 ↗
“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
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- 2Intel extension update stuck in a reboot loop