Frequent "Power Source Change" (Kernel-Power 105) events

Y

yellowfog

Member
Hi, my notebook (see spec below), running Windows 10 Pro (21H1), seems to be struggling for performance in ways in never used to, plus there seems to be something up with the battery / power. In the windows event log I'm seeing power change events (on, then off) quite frequently, up to every couple of seconds. I ordered a new power AC Adapter in case it was that, but this is happening with the new one.


Chassis & Display
Lafité Pro Series: 15.6" Matte Full HD 60Hz 72% NTSC LED Widescreen (1920x1080)
Processor (CPU)
Intel® Core™ i5 Quad Core Processor i5-1135G7 (2.4GHz, 4.2GHz Turbo)
Memory (RAM)
32GB Corsair 2400MHz SODIMM DDR4 (2 x 16GB)
Graphics Card
Integrated Intel® Iris® Xe Graphics
1st M.2 SSD Drive
128GB ADATA SX6000 LITE M.2 2280 (1800 MB/R, 1200 MB/W)
1st M.2 SSD Drive
512GB PCS PCIe M.2 SSD (2000 MB/R, 1100 MB/W)
Memory Card Reader
Integrated Micro-SD Memory Card Reader
AC Adaptor
1 x 65W AC Adaptor
Power Cable
1 x 1 Metre Cloverleaf UK Power Cable
Battery
Lafité Pro Series Integrated 73WH Lithium Ion Battery
Sound Card
2 Channel High Definition Audio + MIC/Headphone Jack
Wireless Network Card
GIGABIT LAN & WIRELESS INTEL® Wi-Fi 6 AX200 (2.4 Gbps) + BT 5.0
USB/Thunderbolt Options
1 x THUNDERBOLT 4 + 1 x USB 3.2 (TYPE C) + 1 x USB 3.2 + 1 x USB 2.0
Keyboard Language
LAFITÉ PRO 15 SERIES SINGLE COLOUR BACKLIT UK KEYBOARD
Operating System
NO OPERATING SYSTEM REQUIRED
Operating System Language
United Kingdom - English Language
Windows Recovery Media
NO RECOVERY MEDIA REQUIRED
Office Software
FREE 30 Day Trial of Microsoft 365® (Operating System Required)
Anti-Virus
NO ANTI-VIRUS SOFTWARE
Browser
Google Chrome™
Keyboard & Mouse
INTEGRATED 2 BUTTON TOUCHPAD MOUSE
Webcam
INTEGRATED 1MP HD WEBCAM
Warranty
3 Year Silver Warranty (1 Year Collect & Return, 1 Year Parts, 3 Year Labour)
Delivery
STANDARD INSURED DELIVERY TO UK MAINLAND (MON-FRI)
Build Time
Standard Build - Approximately 10 to 12 working days
Welcome Book
PCSpecialist Welcome Book - United Kingdom & Republic of Ireland
 
ubuysa

ubuysa

The BSOD Doctor
Are you using this with a dock by any chance? Or, are you using the USB-C port to charge it?
 
ubuysa

ubuysa

The BSOD Doctor
yellowfog said:
Thanks, looking forward to the verdict. Have a nice day off!
Click to expand...
It wasn't a day off. On Thursdays in the winter I lead a hill walking group. ;)

I would contact PCS regarding your power issue. In your system log I came across this....

1635431217259.png

...and that would indicate that there is a hardware issue of some sort. The message does suggest that a BIOS update may be required and you'll definitely need their approval for that. This error occurs many times in your System log.

In your Application log there are several application error entries for Clevo Control Center, but if there is a hardware power issue you'd probably expect that.

I would phone PCS and talk this through with them. Make your System and Application logs available to them as well (or point them at this thread).
 
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