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Desktop computer is only turning on for a few seconds

COKEDUDE

Member
My desktop computer is only turning on for a few seconds after that it turns off. I assumed it was the power supply so I bought another one. Last night I installed the power supply. It took awhile with me reseating everything and taking out the cmos battery to get the computer running. After that I used it for about an hour. I went home and came back to the office the next day. Unfortunately it reverted back to the behavior of only turning on for a few seconds after that it turns off. Can I please get some suggestions on what to do?
 

My Computer

System One

  • OS
    Windows 8

mrjimphelps

"Phelps Helps"
Change the CMOS battery. The one you now have may be bad. (Test it, if you have a multimeter.)

A bad CMOS battery can cause your computer to play dead; then when you replace the CMOS battery, your computer comes back to life. This happened to me.
 

My Computer

System One

  • OS
    Linux Mint 18.2 xfce 64-bit (host OS) / Windows 8.1 Pro 32-bit (virtual machine)
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Dell Inspiron 3847
    CPU
    Haswell
    Memory
    12 GB
    Monitor(s) Displays
    Acer 23"
    Screen Resolution
    1920 x 1080
    Hard Drives
    Two hard drives, 1TB each: One for Linux, one for my data.
    Occupation
    IT Professional
    Keyboard
    IBM Model M
    Browser
    Firefox, Opera, Internet Explorer
    Antivirus
    Sophos (Linux), Windows Defender (Windows)
    Other Info
    I use Samba to share my data drive with the other computers at my house.
    Country Flag
    USA

COKEDUDE

Member
Change the CMOS battery. The one you now have may be bad. (Test it, if you have a multimeter.)

A bad CMOS battery can cause your computer to play dead; then when you replace the CMOS battery, your computer comes back to life. This happened to me.

I do have one :). What should the voltage be of a cmos battery?
 

My Computer

System One

  • OS
    Windows 8

mrjimphelps

"Phelps Helps"

My Computer

System One

  • OS
    Linux Mint 18.2 xfce 64-bit (host OS) / Windows 8.1 Pro 32-bit (virtual machine)
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Dell Inspiron 3847
    CPU
    Haswell
    Memory
    12 GB
    Monitor(s) Displays
    Acer 23"
    Screen Resolution
    1920 x 1080
    Hard Drives
    Two hard drives, 1TB each: One for Linux, one for my data.
    Occupation
    IT Professional
    Keyboard
    IBM Model M
    Browser
    Firefox, Opera, Internet Explorer
    Antivirus
    Sophos (Linux), Windows Defender (Windows)
    Other Info
    I use Samba to share my data drive with the other computers at my house.
    Country Flag
    USA

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