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Desktop computer is only turning on for a few seconds


Posts
44
#1
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"
Posts
138
#2
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 (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell
    CPU
    Haswell
    Memory
    4 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.
    Keyboard
    IBM Model M
    Browser
    Firefox, Opera
    Antivirus
    Sophos (Linux), Trend Micro (Windows)
    Other Info
    I use Samba to share my data drive with the other computers at my house and with my guest session in VMWare Workstation Player.
Posts
44
#3
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"
Posts
138
#4

My Computer

System One

  • OS
    Linux Mint 18.2 xfce 64-bit (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell
    CPU
    Haswell
    Memory
    4 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.
    Keyboard
    IBM Model M
    Browser
    Firefox, Opera
    Antivirus
    Sophos (Linux), Trend Micro (Windows)
    Other Info
    I use Samba to share my data drive with the other computers at my house and with my guest session in VMWare Workstation Player.