I have exactly the same issue with a NUC11PAKi7. Do you have an update on your issue?
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1958692 Title: System crashes and reboots every 15min - 2hr Status in linux-signed-oem-5.14 package in Ubuntu: New Bug description: I have a NUC11NAHi5 system running Ubuntu 20.04.3, and every few minutes to hours it will crash: justin :0 :0 Fri Jan 21 19:46 - crash (00:37) justin :0 :0 Fri Jan 21 19:40 - crash (00:05) justin :0 :0 Fri Jan 21 17:33 - crash (02:07) justin :0 :0 Fri Jan 21 17:16 - crash (00:07) justin :0 :0 Fri Jan 21 17:13 - crash (00:02) justin :0 :0 Fri Jan 21 16:54 - crash (00:19) justin :0 :0 Fri Jan 21 16:25 - crash (00:28) justin :0 :0 Fri Jan 21 16:18 - crash (00:06) justin :0 :0 Fri Jan 21 16:11 - crash (00:07) justin :0 :0 Fri Jan 21 15:46 - crash (00:24) When it comes back up I see the following errors in journalctl: kernel: BERT: Error records from previous boot: kernel: [Hardware Error]: event severity: fatal kernel: [Hardware Error]: Error 0, type: fatal kernel: [Hardware Error]: section_type: Firmware Error Record Reference kernel: [Hardware Error]: Firmware Error Record Type: SOC Firmware Error Record Type2 kernel: [Hardware Error]: Revision: 2 kernel: [Hardware Error]: Record Identifier: 8f87f311-c998-4d9e-a0c4-6065518c4f6d followed by a large hex dump. It could be related to this issue: https://community.intel.com/t5/Processors/Frequent-crashes-on-i5-11500/td-p/1280709 The BIOS is up-to-date, as is the intel microcode package. It doesn't seem to matter which kernel I use. I'm using the OEM one since the regular kernels for 20.04.3 (a) also have this problem, and (b) have broken IR support (https://askubuntu.com/questions/1380500/kernel-rc- rc0-receive-overflow). System: NUC11PAHi5 SKU: RNUC11PAHi5000 BIOS: PATGL357.0041.2021.0811.1505 Board: NUC11PABi5 CPU: i5-1135G7 I'm not sure if it's a kernel issue, BIOS issue, microcode issue, or hardware issue, so I decided to start here. Let me know how else I can help. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.14.0-1020-oem 5.14.0-1020.22 ProcVersionSignature: Ubuntu 5.14.0-1020.22-oem 5.14.20 Uname: Linux 5.14.0-1020-oem x86_64 ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 CasperMD5CheckResult: skip Date: Fri Jan 21 20:44:43 2022 InstallationDate: Installed on 2022-01-08 (13 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-signed-oem-5.14 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-oem-5.14/+bug/1958692/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp