Suddenly during the usage, the PC turn off but the case is still on, fans keep spinning, and red light on CPU, requires my restart via power button, cant restart on its own.
Recent events if relevant: i changed thermal paste and cleaned pc (1 month ago, problems though started yesterday)
I changed the Power strip (aswell 1 month ago)
Many power outrages in town in past month for the heat.
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PC CRASH - DIAGNOSTIC REPORT
Generated 13 Jul 2026 - Based on Windows Event Logs
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1. HARDWARE
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Motherboard : MSI MAG B650 Tomahawk WIFI (MS-7D75)
CPU : AMD Ryzen 7 7800X3D (8-core)
RAM : 2x 16GB Corsair CMK32GX5M2B6000Z30
DDR5-6000 CL30 (EXPO)
GPU : NVIDIA RTX 4080 Super
PSU : MSI MPG A1000G PCIE5 - 1000W, 80+ Gold, ATX 3.0
BIOS : was 1.M0 (Mar 2025) -> updated to 1.R2 (2 Jul 2026)
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2. SHUTDOWN HISTORY (Kernel-Power 41)
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All events logged with Bugcheck 0 = clean instant power loss,
no blue screen.
13 May 17:54 [ext] neighborhood outage
25 May 22:41/23:19/23:21 [ext] neighborhood outage
28 May 11:48 [ext] neighborhood outage
10 Jun 16:10 [ext] neighborhood outage
19 Jun 19:06/23:01 [ext] neighborhood outage
21 Jun 03:20 [ext] neighborhood outage
07 Jul 12:08 [ext] neighborhood outage
12 Jul 01:27 [GENUINE] during use
12 Jul 13:11 [GENUINE] during use
13 Jul 10:09 [GENUINE] 20 secs after startup
KEY TAKEAWAYS:
- No WHEA errors anywhere -> no logged CPU/PCIe hardware errors.
- Genuine cases cluster on 12-13 Jul: 3 in ~33 hours, intermittent.
- Symptom evolution: previously always DURING USE; on 13 Jul, for
the first time AT STARTUP (stuck on CPU LED, manual restart)
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3. FAULT SIGNATURE
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- Instant shutdown, NO BSOD, NO WHEA
not compute (RAM/software would give BSOD/freeze/WHEA).
- CPU EZ Debug LED red; stays stuck and won't restart on
its own (manual restart needed).
- Intermittent, mostly during LIGHT use, NOT load-related
(crashes even at ~300W on a 1000W PSU).
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4. WHAT I TRIED / ESTABLISHED
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[x] Updated BIOS 1.M0 -> 1.R2 (latest).
Result: crashed again -> not (just) the BIOS.
[x] Confirmed RAM at 6000 with EXPO.
[x] TestMem5 (Ryzen3D anta777 config) -> 0 ERRORS
-> memory stable at runtime.
[x] CPU temp 40C (idle) -> overheating ruled out.
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Source: Windows System event log (Kernel-Power ID 41, WHEA-Logger,
WER bugcheck 1001, ID 6008). Update as diagnosis progresses.
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