TALK / TROUBLESHOOTING
Work through it in order: log the event, rule out power and memory, then look at temperature. Each step has a free check.
Short answer
Treat it as three suspects: power, memory and heat, and test them in that order because the first two are cheap to check. Start by reading what Windows logged, since it can tell a crash from a sudden loss of power.
Step 1: read the event log
Microsoft documents that when a computer shuts down unexpectedly, Windows logs Event ID 41 (Kernel-Power) on the next start. If the event carries a non-zero bug check code, a Stop error occurred, and the code is your lead. If the code and power-button values are zero, Microsoft says the cause might be a power supply problem, an interruption of power, or a hard hang where Windows could not write the codes. That one log entry splits “software or driver crash” from “the machine simply lost power or froze”.
Step 2: power and memory
Power: use the adapter supplied with the unit, check the plug is fully seated, and try a different wall outlet. Microsoft lists an underpowered or faulty supply and a power outage among the causes of a sudden shutdown. Memory: Microsoft’s Stop-error guidance says to update Windows and the BIOS and to run relevant hardware and memory tests. MemTest86 is a free tool that boots from a USB flash drive and tests RAM; it describes faulty RAM as a cause of crashes and unexplained behaviour. If you recently added or changed RAM, test with the original modules.
Keep a short log
Note the date, what you were running, whether the fan ramped up first, and whether the machine restarted by itself or stayed off. Intermittent faults are easier to narrow down with a record, and a log is what a warranty department will ask for. Microsoft also suggests a simple hang check: press Caps Lock, and if the light does not respond, the computer may be unresponsive rather than powered off.
Step 3: heat, and what not to conclude
Only then look at temperature. Every CPU has a maximum junction temperature; Intel’s ARK page lists 105 °C for the N150, for example, so check your own CPU’s figure on its ARK or AMD page. Monitor the temperature during the load that triggers the problem, clear dust from vents, and keep the unit out of enclosed spaces. Our heating guide covers cooling.
We cannot diagnose your unit from here. Repeated shutdowns that survive a power supply swap and a clean RAM test deserve a warranty claim, not further tinkering, and opening a sealed unit can affect cover. Do not force the machine to keep running under load while it is failing.
Other perspectives
Adding to “Short answer”
If a new unit does this, document it before returning it: note the Event ID 41 values, the load that triggers it, and the dates. Check the seller’s return window and warranty terms, which we have not verified for any brand. Our brand overview discusses support, and is being revised. Keep the box and packaging until the problem is resolved.
Adding to “Step 3: heat, and what not to conclude”
When shopping, look for the exact CPU name, its sustained power setting if the manufacturer offers a BIOS power-limit option, and the stated power adapter rating. Cooling designs differ between units and we have not compared them, so treat this as a question to ask the seller, not a verdict. Compare adapter wattage across similar models. Also check that the unit supports the memory you plan to add, so you can run a clean RAM test later.
Adding to “Step 2: power and memory”
Keep the BIOS and chipset drivers current, as Microsoft advises, and note changes you make so you can undo them. Dust build-up is gradual; schedule a vent check. Back up before heavy testing, because an abrupt power loss can corrupt files. For always-on machines, a small UPS also helps rule out mains problems; see our UPS note. Do not run stress tests unattended on a unit you suspect is overheating.
Quick questions
- Is Event ID 41 the cause of the shutdown?
- No. It is the record that Windows did not shut down cleanly. Microsoft says the event data helps point to a Stop error, power button, or power loss.
- Does this apply to Linux?
- The event log steps are for Windows. The power, memory and heat checks apply to any operating system; use the logs your system keeps.
What we checked
We separate documented facts from our own advice and from what we could not confirm. We did not run tests for this answer. See how we test and our editorial policy.
Facts from sources
- Event ID 41 is logged on the next start after an unexpected shutdown; zero codes can indicate power problems or hard hang (Microsoft).
- Microsoft Stop-error steps: update Windows/BIOS, run hardware and memory tests.
- MemTest86 tests RAM from a USB drive (official site).
- Intel ARK lists 105 °C Tjunction for N150.
Our advice
- Check power, then RAM, then heat; document before returning.
Not confirmed
- Cannot diagnose a specific unit.
- No temperature or stress tests were run by us.
Sources (read 2026-10-24)
- Microsoft Learn — Event ID 41: The system has rebooted without cleanly shutting down first — read 2026-10-24
- Microsoft Learn — Stop code error or bug check troubleshooting — read 2026-10-24
- MemTest86 — official site — read 2026-10-24
- Intel ARK — Processor N150 specifications — read 2026-10-24