How to tell if my PC's power supply is bad?


Birk

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I've been experiencing system hangups for the past week, and they are getting more frequent. Since I haven't been able to identify what's causing them I did an in-place update of Win11, but that has not helped. So I'm wondering if it could be a problem with my PC's power supply. Is there a way to tell if the power supply is OK or not?
 

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    Intel i5-12600K 3700 MHz
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    Asus B660-M
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davewin11

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System One System Two

  • OS
    Windows 10
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    Self built
    CPU
    Intel i8400
    Motherboard
    ASUS PRIME Z370-P
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    16GB
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    NVIDIA GeForce GT710
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    ASUS Xonar D2X
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    Dell SE2417HGXF Full HD Gaming Monitor, 24"
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    Xilence XP420
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    Windows 11 on VMware (Release, Beta and Dev)
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Berton

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Working with a power supply is more difficult with the ATX-style motherboards versus the older AT-style. The AT had the power switch connected directly to the power supply while the ATX has the switch connected to the motherboard itself and the board connected to the power supply. The ATX switch only tells the board to get things started. Even when Off the ATX board still has power to it unless pulling the power cord from the back of it and if a Notebook/Laptop also removing the battery. There are testers available, older ones for the PATA/IDE drive connections and newer for the SATA connections. One software test I use is a bootable Linux LiveDVD or LiveUSB to run outside of the install Windows to determine if its a software or hardware issue. The Linux DVD is fully functional and could be used for long periods to see if the issue comes up, helps narrow things down.
 

My Computers

System One System Two

  • OS
    Win11 Pro RTM
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    Laptop
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    Dell Vostro 3400
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    Intel Core i5
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    8GB
    Hard Drives
    256GB SSD NVMe
  • Operating System
    Windows 11 Pro RTM x64
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    PC/Desktop
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    Dell Vostro 5890
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    Intel Core i5
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    16GB
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    Onboard, no VGA, using a DisplayPort-to-VGA adapter
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    21"
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Birk

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Good info - thanks. I had completely forgotten about SpeedFan.
 

My Computer

System One

  • OS
    Win11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom build
    CPU
    Intel i5-12600K 3700 MHz
    Motherboard
    Asus B660-M
    Memory
    16 GB
    Graphics Card(s)
    none
    Sound Card
    none
    Monitor(s) Displays
    Primary: LG 4K; Secondary: Dell U2412M
    Screen Resolution
    Primary: 3860 x 2160; Secondary: 1200 x 1920
    Hard Drives
    C: Samsung NVme SSD970 256K
    E: 1 TB HDD
    F: 500K HDD
    W: Samsung SSD 840 128K
    Keyboard
    Logitech Lighted
    Mouse
    Kensington ExpertMouse trackball
    Internet Speed
    500/500
    Browser
    Brave
    Antivirus
    Windows Defender

fireberd

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Tampa Florida
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Only true way I've found is to replace it with a known good power supply. Testers I've seen test for voltages but do not test under load.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    My Build
    CPU
    i9 9900K
    Motherboard
    Gigabyte Z390 Designare
    Memory
    16GB Corsair Vengeance RGB DDR
    Graphics Card(s)
    MSI AMD Radeon RX5500 XT
    Sound Card
    Realtek
    Monitor(s) Displays
    27" Dell S2719dgb
    Screen Resolution
    2560X1440
    Hard Drives
    Samsung 980 1TB M.2 2280 NVMe for Win 11 Production/Recording
    Samsung EVO SSD for Win 11 Insider
    2TB conventional drive for recording projects and backup
    PSU
    Thermatake Modular 750
    Case
    BeQuiet Pure Base 600
    Cooling
    Corsair H80i V2
    Keyboard
    Microsoft wireless
    Mouse
    Microsoft wireless
    Internet Speed
    100+ Mb/sec
    Browser
    Edge
    Antivirus
    Defender and Malwarebytes
    Other Info
    Cakewalk by Bandlab and Presonus Studio One 4.6 Pro recording programs. MOTU recording interface
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